diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..f91f646
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,12 @@
+#
+# https://help.github.com/articles/dealing-with-line-endings/
+#
+# Linux start script should use lf
+/gradlew        text eol=lf
+
+# These are Windows script files and should use crlf
+*.bat           text eol=crlf
+
+# Binary files should be left untouched
+*.jar           binary
+
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..4f3df9e
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,93 @@
+name: CI/CD Pipeline
+
+on:
+  push:
+    branches: [ main, work ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    
+    steps:
+    - uses: actions/checkout@v3
+      
+    - name: Setup Java
+      uses: actions/setup-java@v3
+      with:
+        java-version: '21'
+        distribution: 'temurin'
+        
+    - name: Run tests
+      run: ./gradlew test
+      
+    - name: Run SpotBugs
+      run: ./gradlew spotbugsMain
+      
+    - name: Build
+      run: ./gradlew build
+      
+    - name: Create fat JAR
+      run: ./gradlew fatJar
+      
+    - name: Upload JAR artifact
+      uses: actions/upload-artifact@v4
+      with:
+        name: image-filtering-app
+        path: app/build/libs/image-filtering-all.jar
+        retention-days: 30
+
+  release:
+    needs: build
+    runs-on: ubuntu-latest
+    if: github.ref == 'refs/heads/main'
+    
+    steps:
+    - uses: actions/checkout@v3
+      
+    - name: Setup Java
+      uses: actions/setup-java@v3
+      with:
+        java-version: '21'
+        distribution: 'temurin'
+        
+    - name: Build and create fat JAR
+      run: ./gradlew fatJar
+      
+    - name: Create Release
+      uses: softprops/action-gh-release@v1
+      with:
+        tag_name: v${{ github.run_number }}
+        name: Image Filtering App v${{ github.run_number }}
+        body: |
+          ## Image Filtering Application
+          
+          Automated build from commit ${{ github.sha }}
+          
+          ## Usage
+          ```bash
+          java -jar image-filtering-all.jar <input_path> <filter_name> [convolution_mode] [output_path]
+          ```
+          
+          ## Available Filters
+          - blur
+          - emboss
+          - find_edges
+          - glass_distortion
+          - motion_blur
+          - negative
+          - pixelate
+          - radial_blur
+          
+          ## Convolution Modes
+          - sequential (default)
+          - row
+          - column
+          - pixel
+          - grid
+        files: app/build/libs/image-filtering-all.jar
+        draft: false
+        prerelease: false
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.gitignore b/.gitignore
index 524f096..db8bf51 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,3 +22,14 @@
 # virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
 hs_err_pid*
 replay_pid*
+
+# Ignore Gradle project-specific cache directory
+.gradle
+
+# Ignore Gradle build output directory
+build
+
+.idea
+
+.DS_Store
+
diff --git a/README.md b/README.md
index 31a2646..8999d7c 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,103 @@
-# image-filtering
\ No newline at end of file
+### Image Filtering Application
+
+A Java application for applying various image filters using different convolution algorithms.
+
+---
+
+### Project Structure
+
+```
+app/src/main/java/com/vicitori/
+├── app/
+│   ├── Main.java                    # Application entry point
+│   ├── ImageFilteringApp.java       # CLI interface using Picocli
+│   ├── FilteringEngine.java         # Main processing engine
+│ 
+├── core/
+│   ├── Filter.java                  # Filter record with kernel, factor, bias
+│   ├── Convolution.java             # Abstract convolution interface
+│   ├── AbstractConvolution.java     # Base convolution implementation
+│   └── conv/
+│       ├── SequentialConvolution.java  
+│       ├── RowConvolution.java          
+│       ├── ColumnConvolution.java      
+│       ├── PixelConvolution.java       
+│       └── GridConvolution.java        
+├── filters/
+│   └── FiltersLibrary.java         
+├── io/
+│   └── ImageIO.java          
+└── pipeline/
+    └── ImagePipeline.java           # Multi-threaded batch processing
+```
+
+### How to Run
+
+#### Prerequisites
+- Download the latest `image-filtering-all.jar` from the Releases page
+- Java 21 or higher
+
+#### Single Image Processing
+```bash
+java -jar image-filtering-all.jar <input_path> <filter_name> [convolution_mode] [output_path]
+```
+
+#### Batch Processing (Images in directory)
+```bash
+java -jar image-filtering-all.jar -d <input_directory> <filter_name> [convolution_mode] [output_directory] [-t threads]
+```
+
+### Command Line Options
+- `-d, --directory` - Enable directory mode for batch processing
+- `-t, --threads` - Number of worker threads (default: 4)
+- `-h, --help` - Show help message
+
+### Available Filters
+
+- `blur` - gaussian blur
+- `emboss` - emboss effect 
+- `find_edges` - edge detection
+- `glass_distortion` - glass distortion effect
+- `motion_blur` - motion blur 
+- `negative` - negative/invert colors
+- `pixelate` - pixelation effect
+- `radial_blur` - radial blur effect
+
+### Convolution Modes
+
+- `sequential` (default) - Standard sequential processing
+- `row` - Row-based parallel processing
+- `column` - Column-based parallel processing
+- `pixel` - Pixel-by-pixel processing
+- `grid` - Grid-based parallel processing
+
+### Usage
+
+```bash
+# Apply blur filter to single image
+java -jar image-filtering-all.jar input.jpg blur output.jpg
+
+# Apply emboss filter with row convolution
+java -jar image-filtering-all.jar input.jpg emboss row output.jpg
+
+# Apply edge detection filter
+java -jar image-filtering-all.jar input.jpg find_edges output.jpg
+
+# Apply negative effect
+java -jar image-filtering-all.jar input.jpg negative output.jpg
+
+# Apply motion blur effect
+java -jar image-filtering-all.jar input.jpg motion_blur output.jpg
+
+# Batch process directory with 4 threads
+java -jar image-filtering-all.jar -d ./images blur sequential ./output -t 4
+```
+
+### Building
+
+```bash
+./gradlew build
+./gradlew fatJar 
+# image-filtering-all.jar will be at app/build/libs
+```
+
diff --git a/app/build.gradle.kts b/app/build.gradle.kts
new file mode 100644
index 0000000..b4306f7
--- /dev/null
+++ b/app/build.gradle.kts
@@ -0,0 +1,54 @@
+import org.gradle.internal.classpath.Instrumented.systemProperty
+
+plugins {
+    application
+    id("com.github.spotbugs") version "6.0.14"
+}
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    implementation("info.picocli:picocli:4.7.5")
+    
+    // Lincheck for concurrency testing
+    testImplementation("org.jetbrains.kotlinx:lincheck:2.24")
+    
+    // JUnit for testing
+    testImplementation("org.junit.jupiter:junit-jupiter:5.10.1")
+    testRuntimeOnly("org.junit.platform:junit-platform-launcher")
+}
+
+java {
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(21)
+    }
+}
+
+application {
+    mainClass = "com.vicitori.app.Main"
+}
+
+tasks.register<Jar>("fatJar") {
+    group = "build"
+    archiveClassifier.set("all")
+    archiveBaseName.set("image-filtering")
+
+    manifest {
+        attributes["Main-Class"] = "com.vicitori.app.Main"
+    }
+
+    from(sourceSets.main.get().output)
+    dependsOn(configurations.runtimeClasspath)
+    from({
+        configurations.runtimeClasspath.get().map { if (it.isDirectory) it else zipTree(it) }
+    })
+}
+
+// SpotBugs configuration
+spotbugs {
+    ignoreFailures = false
+}
+
+
diff --git a/app/src/main/java/com/vicitori/app/FilteringEngine.java b/app/src/main/java/com/vicitori/app/FilteringEngine.java
new file mode 100644
index 0000000..793545a
--- /dev/null
+++ b/app/src/main/java/com/vicitori/app/FilteringEngine.java
@@ -0,0 +1,60 @@
+package com.vicitori.app;
+
+import com.vicitori.core.Convolution;
+import com.vicitori.core.Filter;
+import com.vicitori.core.conv.*;
+import com.vicitori.core.filters.FiltersLibrary;
+import com.vicitori.io.ImageIO;
+import com.vicitori.pipeline.ImagePipeline;
+
+import java.awt.image.BufferedImage;
+import java.util.Objects;
+
+public class FilteringEngine {
+    private final ImageIO io;
+
+    public FilteringEngine(ImageIO io) {
+        this.io = Objects.requireNonNull(io, "ImageIO cannot be null");
+    }
+
+    public String process(String filterName, String convMode) throws ProcessingException {
+        try {
+            Filter filter = FiltersLibrary.get(filterName.toLowerCase());
+            if (filter == null) {
+                throw new ProcessingException("FilteringEngine: process: Unknown filter: " + filterName + ". Available: " + FiltersLibrary.getNames());
+            }
+            Convolution convolution = createConvolution(convMode);
+            BufferedImage image = io.getImage();
+            BufferedImage result = convolution.apply(image, filter);
+            io.writeImage(result);
+            return io.getOutputPath().toString();
+        } catch (Exception e) {
+            throw new ProcessingException("FilteringEngine: process: " + e.getMessage());
+        }
+    }
+
+    public String process(String filterName, String convMode, int workers) throws ProcessingException {
+        try {
+            Filter filter = FiltersLibrary.get(filterName.toLowerCase());
+            if (filter == null) {
+                throw new ProcessingException("FilteringEngine: process: with workers: Unknown filter: " + filterName + ". Available: " + FiltersLibrary.getNames());
+            }
+            Convolution convolution = createConvolution(convMode);
+            new ImagePipeline(io.getInputFiles(), io.getOutputDir(), workers, convolution, filter).start();
+            return io.getOutputDir().toString();
+        } catch (Exception e) {
+            throw new ProcessingException("FilteringEngine: process: with workers: " + e.getMessage());
+        }
+    }
+
+    private Convolution createConvolution(String convMode) {
+        if (convMode == null) return new SequentialConvolution();
+        return switch (convMode.toLowerCase()) {
+            case "row" -> new RowConvolution();
+            case "column" -> new ColumnConvolution();
+            case "pixel" -> new PixelConvolution();
+            case "grid" -> new GridConvolution();
+            default -> new SequentialConvolution();
+        };
+    }
+}
diff --git a/app/src/main/java/com/vicitori/app/ImageFilteringApp.java b/app/src/main/java/com/vicitori/app/ImageFilteringApp.java
new file mode 100644
index 0000000..fbd8e2b
--- /dev/null
+++ b/app/src/main/java/com/vicitori/app/ImageFilteringApp.java
@@ -0,0 +1,57 @@
+package com.vicitori.app;
+
+import com.vicitori.io.ImageIO;
+import picocli.CommandLine.Command;
+import picocli.CommandLine.Parameters;
+import picocli.CommandLine.Option;
+import java.util.concurrent.Callable;
+
+@Command(
+        name = "ImageFilteringApp",
+        description = "Apply convolution filters to an image.",
+        mixinStandardHelpOptions = true
+)
+public class ImageFilteringApp implements Callable<Integer> {
+
+    @Parameters(index = "0", description = "Path to the input image.", paramLabel = "INPUT_PATH")
+    private String inputPath;
+
+    @Parameters(index = "1", description = "Filter name: ${COMPLETION-CANDIDATES}", paramLabel = "FILTER_NAME")
+    private String filterName;
+
+    @Parameters(index = "2", arity = "0..1",
+            description = "Convolution mode (sequential, parallel (row), parallel (column), parallel (pixel), parallel (grid)). Default: sequential",
+            paramLabel = "CONVOLUTION_MODE")
+    private String convMode;
+
+    @Parameters(index = "3", arity = "0..1",
+            description = "Path to the output image. Default: <INPUT_IMAGE_PATH>_filtered.png",
+            paramLabel = "OUTPUT_PATH")
+    private String outputPath;
+
+    @Option(names = {"-d", "--directory"}, description = "If specified, treat INPUT_PATH as a directory and process all images inside.")
+    private boolean directoryMode = false;
+
+    @Option(names = {"-t", "--threads"}, description = "Number of worker threads for directory processing. Default: 4")
+    private int workers = 4;
+
+    @Override
+    public Integer call() {
+        try {
+            ImageIO io = ImageIO.create(directoryMode, inputPath, outputPath);
+            FilteringEngine imgProcessor = new FilteringEngine(io);
+            String savedPath;
+            if (directoryMode) {
+                savedPath = imgProcessor.process(filterName, convMode, workers);
+            } else {
+                savedPath = imgProcessor.process(filterName, convMode);
+            }
+            System.out.printf("Applied filter '%s' with mode '%s'. Saved result to %s%n",
+                    filterName, convMode == null ? "sequential" : convMode, savedPath);
+            return 0;
+        } catch (ProcessingException e) {
+            System.err.println("Error: " + e.getMessage());
+            return 1;
+        }
+    }
+}
diff --git a/app/src/main/java/com/vicitori/app/Main.java b/app/src/main/java/com/vicitori/app/Main.java
new file mode 100644
index 0000000..bc9460c
--- /dev/null
+++ b/app/src/main/java/com/vicitori/app/Main.java
@@ -0,0 +1,10 @@
+package com.vicitori.app;
+
+import picocli.CommandLine;
+
+public class Main {
+    public static void main(String[] args) {
+        int exitCode = new CommandLine(new ImageFilteringApp()).execute(args);
+        System.exit(exitCode);
+    }
+}
diff --git a/app/src/main/java/com/vicitori/app/ProcessingException.java b/app/src/main/java/com/vicitori/app/ProcessingException.java
new file mode 100644
index 0000000..d81de3b
--- /dev/null
+++ b/app/src/main/java/com/vicitori/app/ProcessingException.java
@@ -0,0 +1,8 @@
+package com.vicitori.app;
+
+// Exception for high-level image processing failures
+public class ProcessingException extends Exception {
+    public ProcessingException(String message) {
+        super(message);
+    }
+}
diff --git a/app/src/main/java/com/vicitori/core/AbstractConvolution.java b/app/src/main/java/com/vicitori/core/AbstractConvolution.java
new file mode 100644
index 0000000..cd2cce1
--- /dev/null
+++ b/app/src/main/java/com/vicitori/core/AbstractConvolution.java
@@ -0,0 +1,43 @@
+package com.vicitori.core;
+
+import java.awt.*;
+import java.awt.image.BufferedImage;
+
+public abstract class AbstractConvolution implements Convolution {
+    protected final Color applyKernel(BufferedImage image, int x, int y, Filter filter) {
+        float[][] kernel = filter.kernel();
+        float factor = filter.factor();
+        float bias = filter.bias();
+
+        int filterHeight = kernel.length;
+        int filterWidth = kernel[0].length;
+
+        int filterHalfH = filterHeight / 2;
+        int filterHalfW = filterWidth / 2;
+
+        int width = image.getWidth();
+        int height = image.getHeight();
+
+        float red = 0f, green = 0f, blue = 0f;
+
+        for (int filterY = 0; filterY < filterHeight; filterY++) {
+            for (int filterX = 0; filterX < filterWidth; filterX++) {
+
+                int imageX = (x - filterHalfW + filterX + width) % width;
+                int imageY = (y - filterHalfH + filterY + height) % height;
+                Color pixel = new Color(image.getRGB(imageX, imageY));
+
+                red += pixel.getRed() * kernel[filterY][filterX];
+                green += pixel.getGreen() * kernel[filterY][filterX];
+                blue += pixel.getBlue() * kernel[filterY][filterX];
+            }
+        }
+        return new Color(calibrate(red, factor, bias), calibrate(green, factor, bias), calibrate(blue, factor, bias));
+    }
+
+    protected final int calibrate(float value, float factor, float bias) {
+        float newValue = value * factor + bias;
+        int intValue = Math.round(newValue);
+        return Math.max(0, Math.min(255, intValue));
+    }
+}
diff --git a/app/src/main/java/com/vicitori/core/Convolution.java b/app/src/main/java/com/vicitori/core/Convolution.java
new file mode 100644
index 0000000..60bc98d
--- /dev/null
+++ b/app/src/main/java/com/vicitori/core/Convolution.java
@@ -0,0 +1,7 @@
+package com.vicitori.core;
+
+import java.awt.image.BufferedImage;
+
+public interface Convolution {
+    BufferedImage apply(BufferedImage image, Filter filter);
+}
diff --git a/app/src/main/java/com/vicitori/core/Filter.java b/app/src/main/java/com/vicitori/core/Filter.java
new file mode 100644
index 0000000..46109e1
--- /dev/null
+++ b/app/src/main/java/com/vicitori/core/Filter.java
@@ -0,0 +1,24 @@
+package com.vicitori.core;
+
+public record Filter(float[][] kernel, float factor, float bias) {
+    public Filter {
+        // Defensive copy to prevent external modification
+        if (kernel != null) {
+            float[][] copy = new float[kernel.length][];
+            for (int i = 0; i < kernel.length; i++) {
+                copy[i] = kernel[i].clone();
+            }
+            kernel = copy;
+        }
+    }
+    
+    public float[][] kernel() {
+        // Return defensive copy
+        if (kernel == null) return null;
+        float[][] copy = new float[kernel.length][];
+        for (int i = 0; i < kernel.length; i++) {
+            copy[i] = kernel[i].clone();
+        }
+        return copy;
+    }
+}
diff --git a/app/src/main/java/com/vicitori/core/conv/ColumnConvolution.java b/app/src/main/java/com/vicitori/core/conv/ColumnConvolution.java
new file mode 100644
index 0000000..915bf63
--- /dev/null
+++ b/app/src/main/java/com/vicitori/core/conv/ColumnConvolution.java
@@ -0,0 +1,45 @@
+package com.vicitori.core.conv;
+
+import com.vicitori.core.AbstractConvolution;
+import com.vicitori.core.Convolution;
+import com.vicitori.core.Filter;
+
+import java.awt.*;
+import java.awt.image.BufferedImage;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.Callable;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
+public class ColumnConvolution extends AbstractConvolution implements Convolution {
+    private final ExecutorService executor = Executors.newFixedThreadPool(Runtime.getRuntime().availableProcessors());
+
+    @Override
+    public BufferedImage apply(BufferedImage image, Filter filter) {
+        int width = image.getWidth();
+        int height = image.getHeight();
+
+        BufferedImage outputImage = new BufferedImage(width, height, image.getType());
+
+        List<Callable<Void>> tasks = new ArrayList<>();
+        for (int x = 0; x < width; x++) {
+            final int fx = x;
+            tasks.add(() -> {
+                for (int y = 0; y < height; y++) {
+                    Color newPixel = applyKernel(image, fx, y, filter);
+                    // memory areas of different threads do not overlap
+                    outputImage.setRGB(fx, y, newPixel.getRGB());
+                }
+                return null;
+            });
+        }
+
+        try {
+            executor.invokeAll(tasks);
+        } catch (InterruptedException e) {
+            Thread.currentThread().interrupt();
+        }
+        return outputImage;
+    }
+}
diff --git a/app/src/main/java/com/vicitori/core/conv/GridConvolution.java b/app/src/main/java/com/vicitori/core/conv/GridConvolution.java
new file mode 100644
index 0000000..01794b2
--- /dev/null
+++ b/app/src/main/java/com/vicitori/core/conv/GridConvolution.java
@@ -0,0 +1,72 @@
+package com.vicitori.core.conv;
+
+import com.vicitori.core.AbstractConvolution;
+import com.vicitori.core.Convolution;
+import com.vicitori.core.Filter;
+
+import java.awt.*;
+import java.awt.image.BufferedImage;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.Callable;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
+public class GridConvolution extends AbstractConvolution implements Convolution {
+    private final ExecutorService executor = Executors.newFixedThreadPool(Runtime.getRuntime().availableProcessors());
+    // in the future it will be possible to set via cli
+    private final int blocksCntX;
+    private final int blocksCntY;
+
+    public GridConvolution(int blocksCntX, int blocksCntY) {
+        this.blocksCntX = blocksCntX;
+        this.blocksCntY = blocksCntY;
+    }
+
+    // now uses these randomly selected values
+    public GridConvolution() {
+        this.blocksCntX = 10;
+        this.blocksCntY = 6;
+    }
+
+    @Override
+    public BufferedImage apply(BufferedImage image, Filter filter) {
+        int width = image.getWidth();
+        int height = image.getHeight();
+
+        BufferedImage outputImage = new BufferedImage(width, height, image.getType());
+
+        int blockWidth = (int) Math.ceil((double) width / this.blocksCntX);
+        int blockHeight = (int) Math.ceil((double) height / this.blocksCntY);
+
+        List<Callable<Void>> tasks = new ArrayList<>();
+
+        // divide the picture into blocksCntY * blocksCntX of rectangles
+        for (int by = 0; by < this.blocksCntY; by++) {
+            for (int bx = 0; bx < this.blocksCntX; bx++) {
+                final int startX = bx * blockWidth;
+                final int startY = by * blockHeight;
+                final int endX = Math.min(startX + blockWidth, width);
+                final int endY = Math.min(startY + blockHeight, height);
+
+                tasks.add(() -> {
+                    for (int y = startY; y < endY; y++) {
+                        for (int x = startX; x < endX; x++) {
+                            Color newPixel = applyKernel(image, x, y, filter);
+                            // memory areas of different threads do not overlap
+                            outputImage.setRGB(x, y, newPixel.getRGB());
+                        }
+                    }
+                    return null;
+                });
+            }
+        }
+
+        try {
+            executor.invokeAll(tasks);
+        } catch (InterruptedException e) {
+            Thread.currentThread().interrupt();
+        }
+        return outputImage;
+    }
+}
diff --git a/app/src/main/java/com/vicitori/core/conv/PixelConvolution.java b/app/src/main/java/com/vicitori/core/conv/PixelConvolution.java
new file mode 100644
index 0000000..e110a7a
--- /dev/null
+++ b/app/src/main/java/com/vicitori/core/conv/PixelConvolution.java
@@ -0,0 +1,48 @@
+package com.vicitori.core.conv;
+
+import com.vicitori.core.AbstractConvolution;
+import com.vicitori.core.Convolution;
+import com.vicitori.core.Filter;
+
+import java.awt.*;
+import java.awt.image.BufferedImage;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.Callable;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
+public class PixelConvolution extends AbstractConvolution implements Convolution {
+    private final ExecutorService executor = Executors.newFixedThreadPool(Runtime.getRuntime().availableProcessors());
+
+    @Override
+    public BufferedImage apply(BufferedImage image, Filter filter) {
+        int width = image.getWidth();
+        int height = image.getHeight();
+
+        BufferedImage outputImage = new BufferedImage(width, height, image.getType());
+
+        List<Callable<Void>> tasks = new ArrayList<>();
+
+        for (int y = 0; y < height; y++) {
+            for (int x = 0; x < width; x++) {
+                final int fx = x;
+                final int fy = y;
+
+                tasks.add(() -> {
+                    Color newPixel = applyKernel(image, fx, fy, filter);
+                    // memory areas of different threads do not overlap
+                    outputImage.setRGB(fx, fy, newPixel.getRGB());
+                    return null;
+                });
+            }
+        }
+
+        try {
+            executor.invokeAll(tasks);
+        } catch (InterruptedException e) {
+            Thread.currentThread().interrupt();
+        }
+        return outputImage;
+    }
+}
diff --git a/app/src/main/java/com/vicitori/core/conv/RowConvolution.java b/app/src/main/java/com/vicitori/core/conv/RowConvolution.java
new file mode 100644
index 0000000..f4e8dfd
--- /dev/null
+++ b/app/src/main/java/com/vicitori/core/conv/RowConvolution.java
@@ -0,0 +1,46 @@
+package com.vicitori.core.conv;
+
+import com.vicitori.core.AbstractConvolution;
+import com.vicitori.core.Convolution;
+import com.vicitori.core.Filter;
+
+import java.awt.*;
+import java.awt.image.BufferedImage;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.Callable;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
+public class RowConvolution extends AbstractConvolution implements Convolution {
+    private final ExecutorService executor = Executors.newFixedThreadPool(Runtime.getRuntime().availableProcessors());
+
+    @Override
+    public BufferedImage apply(BufferedImage image, Filter filter) {
+        int width = image.getWidth();
+        int height = image.getHeight();
+
+        BufferedImage outputImage = new BufferedImage(width, height, image.getType());
+
+        List<Callable<Void>> tasks = new ArrayList<>();
+        for (int y = 0; y < height; y++) {
+            final int fy = y;
+
+            tasks.add(() -> {
+                for (int x = 0; x < width; x++) {
+                    Color newPixel = applyKernel(image, x, fy, filter);
+                    // memory areas of different threads do not overlap
+                    outputImage.setRGB(x, fy, newPixel.getRGB());
+                }
+                return null;
+            });
+        }
+
+        try {
+            executor.invokeAll(tasks);
+        } catch (InterruptedException e) {
+            Thread.currentThread().interrupt();
+        }
+        return outputImage;
+    }
+}
diff --git a/app/src/main/java/com/vicitori/core/conv/SequentialConvolution.java b/app/src/main/java/com/vicitori/core/conv/SequentialConvolution.java
new file mode 100644
index 0000000..56a06ac
--- /dev/null
+++ b/app/src/main/java/com/vicitori/core/conv/SequentialConvolution.java
@@ -0,0 +1,25 @@
+package com.vicitori.core.conv;
+
+import com.vicitori.core.AbstractConvolution;
+import com.vicitori.core.Convolution;
+import com.vicitori.core.Filter;
+
+import java.awt.*;
+import java.awt.image.BufferedImage;
+
+public class SequentialConvolution extends AbstractConvolution implements Convolution {
+    @Override
+    public BufferedImage apply(BufferedImage image, Filter filter) {
+        int width = image.getWidth();
+        int height = image.getHeight();
+
+        BufferedImage outputImage = new BufferedImage(width, height, image.getType());
+        for (int y = 0; y < height; y++) {
+            for (int x = 0; x < width; x++) {
+                Color newPixel = applyKernel(image, x, y, filter);
+                outputImage.setRGB(x, y, newPixel.getRGB());
+            }
+        }
+        return outputImage;
+    }
+}
diff --git a/app/src/main/java/com/vicitori/core/filters/FiltersLibrary.java b/app/src/main/java/com/vicitori/core/filters/FiltersLibrary.java
new file mode 100644
index 0000000..61af15b
--- /dev/null
+++ b/app/src/main/java/com/vicitori/core/filters/FiltersLibrary.java
@@ -0,0 +1,77 @@
+package com.vicitori.core.filters;
+
+import com.vicitori.core.Filter;
+
+import java.util.Map;
+import java.util.Set;
+
+public class FiltersLibrary {
+    private static final Map<String, Filter> FILTERS = Map.of(
+            "motion_blur", new Filter(
+                    new float[][]{
+                            {1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f},
+                            {0.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f},
+                            {0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f},
+                            {0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f},
+                            {0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f},
+                            {0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f},
+                            {0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f},
+                            {0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f},
+                            {0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f},
+                    }, 1.0f / 9, 0.0f
+            ), "radial_blur", new Filter(
+                    new float[][]{
+                            {0.0f, 0.1f, 0.0f},
+                            {0.1f, 0.6f, 0.1f},
+                            {0.0f, 0.1f, 0.0f}
+                    }, 1.0f, 0.0f
+            ),"blur", new Filter(
+                    new float[][]{
+                            {1.0f, 4.0f, 6.0f, 4.0f, 1.0f},
+                            {4.0f, 16.0f, 24.0f, 16.0f, 4.0f},
+                            {6.0f, 24.0f, 36.0f, 24.0f, 6.0f},
+                            {4.0f, 16.0f, 24.0f, 16.0f, 4.0f},
+                            {1.0f, 4.0f, 6.0f, 4.0f, 1.0f}
+                    }, 1.0f / 256, 0.0f
+            ),"emboss", new Filter(
+                    new float[][]{
+                            {-2.0f, -1.0f, 0.0f},
+                            {-1.0f, 1.0f, 1.0f},
+                            {0.0f, 1.0f, 2.0f}
+                    }, 0.7f, 128.0f
+            ),"find_edges", new Filter(
+                    new float[][]{
+                            {-1.0f, 0.0f, 0.0f, 0.0f, 0.0f},
+                            {0.0f, -2.0f, 0.0f, 0.0f, 0.0f},
+                            {0.0f, 0.0f, 6.0f, 0.0f, 0.0f},
+                            {0.0f, 0.0f, 0.0f, -2.0f, 0.0f},
+                            {0.0f, 0.0f, 0.0f, 0.0f, -1.0f},
+
+                    }, 1.0f, 0.0f
+            ),"glass_distortion", new Filter(
+                    new float[][]{
+                            {0.0f, 1.0f, 0.0f},
+                            {1.0f, -4.0f, 1.0f},
+                            {0.0f, 1.0f, 0.0f}
+                    }, 1.5f, 128.0f
+            ),"negative", new Filter(
+                    new float[][]{
+                            {-1.0f}
+                    }, 0.9f, 255.0f
+            ),"pixelate", new Filter(
+                    new float[][]{
+                            {1.0f, 1.0f, 0.0f, 0.0f},
+                            {1.0f, 1.0f, 0.0f, 0.0f},
+                            {0.0f, 0.0f, 1.0f, 1.0f},
+                            {0.0f, 0.0f, 1.0f, 1.0f}
+                    }, 0.15f, 0.0f
+            ));
+
+    public static Filter get(String name) {
+        return FILTERS.get(name.toLowerCase());
+    }
+
+    public static Set<String> getNames() {
+        return FILTERS.keySet();
+    }
+}
diff --git a/app/src/main/java/com/vicitori/io/ImageIO.java b/app/src/main/java/com/vicitori/io/ImageIO.java
new file mode 100644
index 0000000..b0ba9c1
--- /dev/null
+++ b/app/src/main/java/com/vicitori/io/ImageIO.java
@@ -0,0 +1,155 @@
+package com.vicitori.io;
+
+import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Objects;
+
+public class ImageIO {
+    private final Path inputPath;
+    private final Path outputPath;
+    private final String outputFormat;
+    public final List<File> inputFiles;
+    public final File outputDir;
+
+    private ImageIO(Path inputPath, Path outputPath, String outputFormat, List<File> inputFiles, File outputDir) {
+        this.inputPath = inputPath;
+        this.outputPath = outputPath;
+        this.outputFormat = outputFormat;
+        this.inputFiles = inputFiles;
+        this.outputDir = outputDir;
+    }
+    
+    public static ImageIO create(boolean isDirectory, String inputPathStr, String outputPathStr) {
+        if (inputPathStr == null) {
+            throw new IllegalArgumentException("IOService: INPUT_PATH must not be null. Restart program.");
+        }
+        
+        try {
+            if (isDirectory) {
+                File inputDir = validateInputDir(inputPathStr);
+                List<File> inputFiles = collectInputFiles(inputDir);
+                File outputDir = prepareOutputDir(inputDir, outputPathStr);
+                String outputFormat = detectOutputFormat(inputFiles);
+                
+                return new ImageIO(null, null, outputFormat, inputFiles, outputDir);
+            } else {
+                Path inputPath = Paths.get(inputPathStr);
+                PathAndFormat out = resolveOutputPathAndFormat(inputPathStr, outputPathStr, inputPath);
+                
+                return new ImageIO(inputPath, out.path(), out.format(), null, null);
+            }
+        } catch (Exception e) {
+            throw new RuntimeException("Failed to create ImageIO", e);
+        }
+    }
+
+    private static File validateInputDir(String inputPathStr) {
+        File inputDir = new File(inputPathStr);
+        if (!inputDir.exists() || !inputDir.isDirectory()) {
+            throw new IllegalArgumentException("Error: " + inputPathStr + " is not a valid directory.");
+        }
+        return inputDir;
+    }
+
+
+    private static List<File> collectInputFiles(File inputDir) {
+        List<File> inputFiles = Arrays.stream(Objects.requireNonNull(inputDir.listFiles()))
+                .filter(File::isFile)
+                .filter(f -> {
+                    String name = f.getName().toLowerCase();
+                    return name.endsWith(".png") || name.endsWith(".jpg") || name.endsWith(".jpeg");
+                })
+                .toList();
+        if (inputFiles.isEmpty()) {
+            throw new IllegalArgumentException("Error: No image files found in " + inputDir.getAbsolutePath());
+        }
+        return inputFiles;
+    }
+
+
+    private static File prepareOutputDir(File inputDir, String outputPathStr) {
+        File outputDir = (outputPathStr == null)
+                ? new File(inputDir.getParentFile(), inputDir.getName() + "_filtered")
+                : new File(outputPathStr);
+
+        if (outputDir.exists() && !outputDir.isDirectory()) {
+            throw new IllegalArgumentException("Output path exists but is not a directory: " + outputDir);
+        }
+        if (!outputDir.exists() && !outputDir.mkdirs()) {
+            throw new IllegalStateException("ImageIO: Failed to create output directory: " + outputDir.getAbsolutePath());
+        }
+        return outputDir;
+    }
+
+    private static String detectOutputFormat(List<File> inputFiles) {
+        String firstExt = extensionOfFileName(inputFiles.getFirst().getName());
+        return (firstExt == null) ? "png" : firstExt.toLowerCase();
+    }
+
+    private record PathAndFormat(Path path, String format) {}
+
+    private static PathAndFormat resolveOutputPathAndFormat(String inputPathStr, String outputPathStr, Path inputPath) {
+        if (outputPathStr == null) {
+            String ext = extensionOfFileName(inputPathStr);
+            String format = (ext == null) ? "png" : ext.toLowerCase();
+
+            String base = (ext == null) ? inputPathStr : inputPathStr.substring(0, inputPathStr.length() - ext.length() - 1);
+            Path directory = inputPath.getParent();
+            Path outPath = (directory == null)
+                    ? Paths.get(base + "_filtered." + format)
+                    : directory.resolve(base + "_filtered." + format);
+
+            return new PathAndFormat(outPath, format);
+        } else {
+            String ext = extensionOfFileName(outputPathStr);
+            String format = (ext == null) ? "png" : ext.toLowerCase();
+            return new PathAndFormat(Paths.get(outputPathStr), format);
+        }
+    }
+
+    public BufferedImage getImage() throws IOException {
+        if (!Files.exists(inputPath)) {
+            throw new IOException("IOService: getImage: Input file does not exist: " + inputPath + ".");
+        }
+        if (!Files.isReadable(inputPath)) {
+            throw new IOException("IOService: getImage: Input file is not readable: " + inputPath + ".");
+        }
+        BufferedImage image = javax.imageio.ImageIO.read(inputPath.toFile());
+        if (image == null) {
+            throw new IOException("IOService: getImage: Could not read image (unsupported or corrupted): " + inputPath);
+        }
+        return image;
+    }
+
+    public void writeImage(BufferedImage image) throws IOException {
+        if (!javax.imageio.ImageIO.write(image, outputFormat, outputPath.toFile())) {
+            throw new IOException("IOService: writeImage: Failed to write image in format "
+                    + outputFormat + " to path " + outputPath);
+        }
+    }
+
+    private static String extensionOfFileName(String name) {
+        if (name == null) return null;
+        int dot = name.lastIndexOf('.');
+        if (dot < 0 || dot == name.length() - 1) return null;
+        return name.substring(dot + 1);
+    }
+
+    public Path getOutputPath() {
+        return outputPath.getFileName();
+    }
+
+    public File getOutputDir() {
+        return this.outputDir;
+    }
+
+    public List<File> getInputFiles() {
+        return this.inputFiles;
+    }
+}
diff --git a/app/src/main/java/com/vicitori/pipeline/ImagePipeline.java b/app/src/main/java/com/vicitori/pipeline/ImagePipeline.java
new file mode 100644
index 0000000..78ed5a1
--- /dev/null
+++ b/app/src/main/java/com/vicitori/pipeline/ImagePipeline.java
@@ -0,0 +1,108 @@
+package com.vicitori.pipeline;
+
+import javax.imageio.ImageIO;
+import java.awt.image.BufferedImage;
+import java.io.File;
+import java.util.List;
+import java.util.concurrent.*;
+import com.vicitori.core.Convolution;
+import com.vicitori.core.Filter;
+
+public class ImagePipeline {
+    private final List<File> inputFiles;
+    private final File outputDir;
+    private final int workersCount;
+    private final Convolution convolution;
+    private final Filter filter;
+
+    private final BlockingQueue<File> readQueue = new ArrayBlockingQueue<>(10);
+    private final BlockingQueue<Result> writeQueue = new ArrayBlockingQueue<>(10);
+
+    private static final File POISON_FILE = new File("POISON");
+
+    private record Result(BufferedImage image, String name) {}
+
+    public ImagePipeline(List<File> inputFiles, File outputDir, int workersCount, Convolution convolution, Filter filter) {
+        // defensive copy to prevent external modification
+        this.inputFiles = List.copyOf(inputFiles);
+        this.outputDir = outputDir;
+        this.workersCount = workersCount;
+        this.convolution = convolution;
+        this.filter = filter;
+    }
+
+    public void start() throws InterruptedException {
+        Thread reader = createReader();
+        Thread writer = createWriter();
+
+        reader.start();
+        writer.start();
+
+        try (ExecutorService workers = createWorkers()) {
+            reader.join();
+            workers.shutdown();
+            boolean finished = workers.awaitTermination(1, TimeUnit.HOURS);
+            if (!finished) {
+                System.err.println("Warning: ImagePipeline: start: workers did not finish within timeout");
+                workers.shutdownNow();
+            }
+        }
+        writeQueue.put(new Result(null, null));
+        writer.join();
+    }
+
+    private Thread createReader() {
+        return new Thread(() -> {
+            try {
+                for (File file : inputFiles) {
+                    readQueue.put(file);
+                }
+                readQueue.put(POISON_FILE);
+            } catch (InterruptedException e) {
+                Thread.currentThread().interrupt();
+            }
+        }, "Reader");
+    }
+
+    private ExecutorService createWorkers() {
+        ExecutorService pool = Executors.newFixedThreadPool(workersCount);
+        for (int i = 0; i < workersCount; i++) {
+            pool.submit(() -> {
+                try {
+                    while (!Thread.currentThread().isInterrupted()) {
+                        File file = readQueue.take();
+                        if (file == POISON_FILE) {
+                            readQueue.put(file);
+                            break;
+                        }
+                        BufferedImage img = ImageIO.read(file);
+                        BufferedImage result = convolution.apply(img, filter);
+                        writeQueue.put(new Result(result, file.getName()));
+                    }
+                } catch (InterruptedException e) {
+                    Thread.currentThread().interrupt();
+                } catch (Exception e) {
+                    System.err.println("Error: ImagePipeline: createWorkers: " + e.getMessage());
+                }
+            });
+        }
+        return pool;
+    }
+
+    private Thread createWriter() {
+        return new Thread(() -> {
+            try {
+                while (!Thread.currentThread().isInterrupted()) {
+                    Result res = writeQueue.take();
+                    if (res.image == null) break;
+                    File outputFile = new File(outputDir, "filtered_" + res.name);
+                    ImageIO.write(res.image, "png", outputFile);
+                }
+            } catch (InterruptedException e) {
+                Thread.currentThread().interrupt();
+            } catch (Exception e) {
+                System.err.println("Error: ImagePipeline: createWriter: " + e.getMessage());
+            }
+        }, "Writer");
+    }
+}
diff --git a/app/src/main/resources/Tula_society.jpeg b/app/src/main/resources/Tula_society.jpeg
new file mode 100644
index 0000000..f64907f
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diff --git a/app/src/main/resources/dream_tatoo.jpeg b/app/src/main/resources/dream_tatoo.jpeg
new file mode 100644
index 0000000..33f2751
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diff --git a/app/src/main/resources/i_ate_a_lot_of_kittens.jpeg b/app/src/main/resources/i_ate_a_lot_of_kittens.jpeg
new file mode 100644
index 0000000..01de2ae
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diff --git a/app/src/main/resources/pain.jpeg b/app/src/main/resources/pain.jpeg
new file mode 100644
index 0000000..a9da276
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diff --git a/app/src/main/resources/prohibited_photo.png b/app/src/main/resources/prohibited_photo.png
new file mode 100644
index 0000000..e00f51e
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diff --git a/app/src/main/resources/strong_kittens_club.jpeg b/app/src/main/resources/strong_kittens_club.jpeg
new file mode 100644
index 0000000..ebc48a4
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diff --git a/app/src/main/resources/study_akkadskiy_with_me.jpeg b/app/src/main/resources/study_akkadskiy_with_me.jpeg
new file mode 100644
index 0000000..4acaf6c
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diff --git a/app/src/test/java/com/vicitori/ConvolutionTest.java b/app/src/test/java/com/vicitori/ConvolutionTest.java
new file mode 100644
index 0000000..b071b99
--- /dev/null
+++ b/app/src/test/java/com/vicitori/ConvolutionTest.java
@@ -0,0 +1,170 @@
+package com.vicitori;
+
+import com.vicitori.core.Convolution;
+import com.vicitori.core.Filter;
+import com.vicitori.core.conv.*;
+import com.vicitori.core.filters.FiltersLibrary;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.BeforeEach;
+
+import java.awt.image.BufferedImage;
+import java.util.Random;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class ConvolutionTest {
+    private static final Random RAND = new Random(42);
+    private Convolution sequentialConv;
+    private Filter blurFilter;
+    private Filter embossFilter;
+    private Filter edgeFilter;
+
+    @BeforeEach
+    void setUp() {
+        sequentialConv = new SequentialConvolution();
+        blurFilter = FiltersLibrary.get("blur");
+        embossFilter = FiltersLibrary.get("emboss");
+        edgeFilter = FiltersLibrary.get("find_edges");
+    }
+
+    @Test
+    @DisplayName("Identity filter should return unchanged image")
+    void testIdentityFilter() {
+        Filter identity = createIdentityFilter(3);
+        BufferedImage testImage = createTestImage(50, 50);
+        
+        BufferedImage result = sequentialConv.apply(testImage, identity);
+        
+        assertTrue(imagesEqual(testImage, result), "Identity filter should return unchanged image");
+    }
+
+    @Test
+    @DisplayName("Zero filter should return black image")
+    void testZeroFilter() {
+        Filter zero = createZeroFilter(3);
+        BufferedImage testImage = createTestImage(50, 50);
+        
+        BufferedImage result = sequentialConv.apply(testImage, zero);
+        
+        assertTrue(isBlackImage(result), "Zero filter should return black image");
+    }
+
+    @Test
+    @DisplayName("Filter composition should work correctly")
+    void testFilterComposition() {
+        Filter leftShift = createShiftFilter(-1, 0);
+        Filter rightShift = createShiftFilter(1, 0);
+        BufferedImage testImage = createTestImage(30, 30);
+        
+        BufferedImage step1 = sequentialConv.apply(testImage, leftShift);
+        BufferedImage step2 = sequentialConv.apply(step1, rightShift);
+        
+        assertTrue(imagesEqual(testImage, step2), "Composition of left and right shift should return original image");
+    }
+
+    @Test
+    @DisplayName("All convolution types should preserve image dimensions")
+    void testImageDimensionsPreserved() {
+        Convolution[] convolutions = {
+            new SequentialConvolution(),
+            new RowConvolution(),
+            new ColumnConvolution(),
+            new PixelConvolution(),
+            new GridConvolution()
+        };
+        
+        BufferedImage testImage = createTestImage(40, 40);
+        
+        for (Convolution conv : convolutions) {
+            BufferedImage result = conv.apply(testImage, blurFilter);
+            
+            assertEquals(testImage.getWidth(), result.getWidth(), 
+                conv.getClass().getSimpleName() + " should preserve width");
+            assertEquals(testImage.getHeight(), result.getHeight(), 
+                conv.getClass().getSimpleName() + " should preserve height");
+        }
+    }
+
+    @Test
+    @DisplayName("All convolution types should produce equivalent results")
+    void testConvolutionEquivalence() {
+        Convolution[] convolutions = {
+            new SequentialConvolution(),
+            new RowConvolution(),
+            new ColumnConvolution(),
+            new PixelConvolution(),
+            new GridConvolution()
+        };
+        
+        Filter[] filters = {blurFilter, embossFilter, edgeFilter};
+        BufferedImage testImage = createTestImage(20, 20);
+        
+        for (Filter filter : filters) {
+            BufferedImage reference = sequentialConv.apply(testImage, filter);
+            
+            for (int i = 1; i < convolutions.length; i++) {
+                BufferedImage result = convolutions[i].apply(testImage, filter);
+                assertTrue(imagesEqual(reference, result), 
+                    convolutions[i].getClass().getSimpleName() + " should produce same result as SequentialConvolution");
+            }
+        }
+    }
+
+    // Вспомогательные методы
+    private static Filter createIdentityFilter(int size) {
+        float[][] kernel = new float[size][size];
+        kernel[size/2][size/2] = 1.0f;
+        return new Filter(kernel, 1.0f, 0.0f);
+    }
+
+    private static Filter createZeroFilter(int size) {
+        float[][] kernel = new float[size][size];
+        return new Filter(kernel, 1.0f, 0.0f);
+    }
+
+    private static Filter createShiftFilter(int dx, int dy) {
+        float[][] kernel = new float[3][3];
+        kernel[1+dy][1+dx] = 1.0f;
+        return new Filter(kernel, 1.0f, 0.0f);
+    }
+
+    private static BufferedImage createTestImage(int width, int height) {
+        BufferedImage img = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
+        for (int y = 0; y < height; y++) {
+            for (int x = 0; x < width; x++) {
+                int r = RAND.nextInt(256);
+                int g = RAND.nextInt(256);
+                int b = RAND.nextInt(256);
+                img.setRGB(x, y, (r << 16) | (g << 8) | b);
+            }
+        }
+        return img;
+    }
+
+    private static boolean imagesEqual(BufferedImage img1, BufferedImage img2) {
+        if (img1.getWidth() != img2.getWidth() || img1.getHeight() != img2.getHeight()) {
+            return false;
+        }
+        
+        for (int y = 0; y < img1.getHeight(); y++) {
+            for (int x = 0; x < img1.getWidth(); x++) {
+                if (img1.getRGB(x, y) != img2.getRGB(x, y)) {
+                    return false;
+                }
+            }
+        }
+        return true;
+    }
+
+    private static boolean isBlackImage(BufferedImage img) {
+        for (int y = 0; y < img.getHeight(); y++) {
+            for (int x = 0; x < img.getWidth(); x++) {
+                if (img.getRGB(x, y) != 0) {
+                    return false;
+                }
+            }
+        }
+        return true;
+    }
+}
diff --git a/app/src/test/java/com/vicitori/ConvolutionTypeTest.java b/app/src/test/java/com/vicitori/ConvolutionTypeTest.java
new file mode 100644
index 0000000..57776b4
--- /dev/null
+++ b/app/src/test/java/com/vicitori/ConvolutionTypeTest.java
@@ -0,0 +1,126 @@
+package com.vicitori;
+
+import com.vicitori.core.Convolution;
+import com.vicitori.core.Filter;
+import com.vicitori.core.conv.*;
+import com.vicitori.core.filters.FiltersLibrary;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.BeforeEach;
+
+import java.awt.image.BufferedImage;
+import java.util.Random;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class ConvolutionTypeTest {
+    private static final Random RAND = new Random(42);
+    private Filter blurFilter;
+    private Filter embossFilter;
+    private BufferedImage testImage;
+
+    @BeforeEach
+    void setUp() {
+        blurFilter = FiltersLibrary.get("blur");
+        embossFilter = FiltersLibrary.get("emboss");
+        testImage = createTestImage(30, 30);
+    }
+
+    @Test
+    @DisplayName("SequentialConvolution should process images correctly")
+    void testSequentialConvolution() {
+        Convolution conv = new SequentialConvolution();
+        
+        BufferedImage result = conv.apply(testImage, blurFilter);
+        
+        assertEquals(testImage.getWidth(), result.getWidth(), "Width should be preserved");
+        assertEquals(testImage.getHeight(), result.getHeight(), "Height should be preserved");
+        assertNotNull(result, "Result should not be null");
+    }
+
+    @Test
+    @DisplayName("RowConvolution should process images correctly")
+    void testRowConvolution() {
+        Convolution conv = new RowConvolution();
+        
+        BufferedImage result = conv.apply(testImage, blurFilter);
+        
+        assertEquals(testImage.getWidth(), result.getWidth(), "Width should be preserved");
+        assertEquals(testImage.getHeight(), result.getHeight(), "Height should be preserved");
+        assertNotNull(result, "Result should not be null");
+    }
+
+    @Test
+    @DisplayName("ColumnConvolution should process images correctly")
+    void testColumnConvolution() {
+        Convolution conv = new ColumnConvolution();
+        
+        BufferedImage result = conv.apply(testImage, blurFilter);
+        
+        assertEquals(testImage.getWidth(), result.getWidth(), "Width should be preserved");
+        assertEquals(testImage.getHeight(), result.getHeight(), "Height should be preserved");
+        assertNotNull(result, "Result should not be null");
+    }
+
+    @Test
+    @DisplayName("PixelConvolution should process images correctly")
+    void testPixelConvolution() {
+        Convolution conv = new PixelConvolution();
+        
+        BufferedImage result = conv.apply(testImage, blurFilter);
+        
+        assertEquals(testImage.getWidth(), result.getWidth(), "Width should be preserved");
+        assertEquals(testImage.getHeight(), result.getHeight(), "Height should be preserved");
+        assertNotNull(result, "Result should not be null");
+    }
+
+    @Test
+    @DisplayName("GridConvolution should process images correctly")
+    void testGridConvolution() {
+        Convolution conv = new GridConvolution();
+        
+        BufferedImage result = conv.apply(testImage, blurFilter);
+        
+        assertEquals(testImage.getWidth(), result.getWidth(), "Width should be preserved");
+        assertEquals(testImage.getHeight(), result.getHeight(), "Height should be preserved");
+        assertNotNull(result, "Result should not be null");
+    }
+
+    @Test
+    @DisplayName("All convolution types should handle different filters")
+    void testConvolutionWithDifferentFilters() {
+        Convolution[] convolutions = {
+            new SequentialConvolution(),
+            new RowConvolution(),
+            new ColumnConvolution(),
+            new PixelConvolution(),
+            new GridConvolution()
+        };
+        
+        Filter[] filters = {blurFilter, embossFilter};
+        
+        for (Convolution conv : convolutions) {
+            for (Filter filter : filters) {
+                BufferedImage result = conv.apply(testImage, filter);
+                
+                assertNotNull(result, conv.getClass().getSimpleName() + " should handle " + 
+                    filter.getClass().getSimpleName() + " filter");
+                assertEquals(testImage.getWidth(), result.getWidth(), "Width should be preserved");
+                assertEquals(testImage.getHeight(), result.getHeight(), "Height should be preserved");
+            }
+        }
+    }
+
+    private BufferedImage createTestImage(int width, int height) {
+        BufferedImage img = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
+        for (int y = 0; y < height; y++) {
+            for (int x = 0; x < width; x++) {
+                int r = RAND.nextInt(256);
+                int g = RAND.nextInt(256);
+                int b = RAND.nextInt(256);
+                img.setRGB(x, y, (r << 16) | (g << 8) | b);
+            }
+        }
+        return img;
+    }
+}
diff --git a/gradle.properties b/gradle.properties
new file mode 100644
index 0000000..377538c
--- /dev/null
+++ b/gradle.properties
@@ -0,0 +1,5 @@
+# This file was generated by the Gradle 'init' task.
+# https://docs.gradle.org/current/userguide/build_environment.html#sec:gradle_configuration_properties
+
+org.gradle.configuration-cache=true
+
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
new file mode 100644
index 0000000..f5172b8
--- /dev/null
+++ b/gradle/libs.versions.toml
@@ -0,0 +1,10 @@
+# This file was generated by the Gradle 'init' task.
+# https://docs.gradle.org/current/userguide/platforms.html#sub::toml-dependencies-format
+
+[versions]
+guava = "33.4.5-jre"
+junit-jupiter = "5.12.1"
+
+[libraries]
+guava = { module = "com.google.guava:guava", version.ref = "guava" }
+junit-jupiter = { module = "org.junit.jupiter:junit-jupiter", version.ref = "junit-jupiter" }
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..9bbc975
Binary files /dev/null and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..37f853b
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.13-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew
new file mode 100755
index 0000000..faf9300
--- /dev/null
+++ b/gradlew
@@ -0,0 +1,251 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"
diff --git a/gradlew.bat b/gradlew.bat
new file mode 100644
index 0000000..9d21a21
--- /dev/null
+++ b/gradlew.bat
@@ -0,0 +1,94 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+@rem SPDX-License-Identifier: Apache-2.0
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/settings.gradle.kts b/settings.gradle.kts
new file mode 100644
index 0000000..2c1df89
--- /dev/null
+++ b/settings.gradle.kts
@@ -0,0 +1,14 @@
+/*
+ * This file was generated by the Gradle 'init' task.
+ *
+ * The settings file is used to specify which projects to include in your build.
+ * For more detailed information on multi-project builds, please refer to https://docs.gradle.org/8.14.1/userguide/multi_project_builds.html in the Gradle documentation.
+ */
+
+plugins {
+    // Apply the foojay-resolver plugin to allow automatic download of JDKs
+    id("org.gradle.toolchains.foojay-resolver-convention") version "0.10.0"
+}
+
+rootProject.name = "image-filtering"
+include("app")