Updating extended GAN tests

Signed-off-by: brian <brian@brutex.de>

brutex-extended-tests/src/test/java/net/brutex/ai/nd4j/tests/LoadBackendTests.java

@@ -36,9 +36,9 @@ import static org.junit.jupiter.api.Assertions.assertTrue;
 public class LoadBackendTests {
 
     @Test
-    public void loadBackend() throws ClassNotFoundException, NoSuchFieldException, IllegalAccessException {
+    public void loadBackend() throws NoSuchFieldException, IllegalAccessException {
         // check if Nd4j is there
-        //Logger.getLogger(LoadBackendTests.class.getName()).info("System java.library.path: " + System.getProperty("java.library.path"));
+        Logger.getLogger(LoadBackendTests.class.getName()).info("System java.library.path: " + System.getProperty("java.library.path"));
         final Field sysPathsField = ClassLoader.class.getDeclaredField("sys_paths");
         sysPathsField.setAccessible(true);
         sysPathsField.set(null, null);

brutex-extended-tests/src/test/java/net/brutex/gan/App2.java

@@ -37,6 +37,8 @@ import org.datavec.image.loader.NativeImageLoader;
 import org.datavec.image.recordreader.ImageRecordReader;
 import org.datavec.image.transform.*;
 import org.deeplearning4j.datasets.datavec.RecordReaderDataSetIterator;
+import org.deeplearning4j.datasets.iterator.ExistingDataSetIterator;
+import org.deeplearning4j.datasets.iterator.INDArrayDataSetIterator;
 import org.deeplearning4j.datasets.iterator.impl.MnistDataSetIterator;
 import org.deeplearning4j.nn.conf.GradientNormalization;
 import org.deeplearning4j.nn.conf.NeuralNetConfiguration;
@@ -46,24 +48,27 @@ import org.deeplearning4j.nn.multilayer.MultiLayerNetwork;
 import org.deeplearning4j.optimize.listeners.PerformanceListener;
 import org.junit.jupiter.api.Tag;
 import org.junit.jupiter.api.Test;
+import org.nd4j.evaluation.classification.Evaluation;
 import org.nd4j.linalg.api.ndarray.INDArray;
 import org.nd4j.linalg.dataset.DataSet;
 import org.nd4j.linalg.dataset.api.iterator.DataSetIterator;
 import org.nd4j.linalg.factory.Nd4j;
 
+import static net.brutex.gan.App2Config.BATCHSIZE;
+
 @Slf4j
 public class App2 {
 
     final int INPUT = CHANNELS*DIMENSIONS*DIMENSIONS;
-    static final float COLORSPACE = 255f;
+
     static final int DIMENSIONS = 28;
     static final int CHANNELS = 1;
     final int ARRAY_SIZE_PER_SAMPLE = DIMENSIONS*DIMENSIONS*CHANNELS;
-    final int OUTPUT_PER_PANEL = 10;
+
 
     final boolean BIAS = true;
 
-    static final int BATCHSIZE=128;
+
 
     private JFrame frame2, frame;
     static final String OUTPUT_DIR = "d:/out/";
@@ -76,7 +81,7 @@ public class App2 {
         Nd4j.getMemoryManager().setAutoGcWindow(15 * 1000);
 
         MnistDataSetIterator mnistIter = new MnistDataSetIterator(20, 200);
-        FileSplit fileSplit = new FileSplit(new File("c:/users/brian/downloads/humans2"), NativeImageLoader.getALLOWED_FORMATS());
+        FileSplit fileSplit = new FileSplit(new File("c:/users/brian/downloads/humans3"), NativeImageLoader.getALLOWED_FORMATS());
         ImageTransform transform = new ColorConversionTransform(new Random(42), 7 );
         ImageTransform transform2 = new ShowImageTransform("Tester", 30);
         ImageTransform transform3 = new ResizeImageTransform(DIMENSIONS, DIMENSIONS);
@@ -129,12 +134,94 @@ public class App2 {
 
         log.info("Generator Summary:\n{}", gen.summary());
         log.info("GAN Summary:\n{}", gan.summary());
-        dis.addTrainingListeners(new PerformanceListener(10, true, "DIS"));
+        dis.addTrainingListeners(new PerformanceListener(3, true, "DIS"));
-        gen.addTrainingListeners(new PerformanceListener(10, true, "GEN"));
+        //gen.addTrainingListeners(new PerformanceListener(3, true, "GEN")); //is never trained separately from GAN
-        gan.addTrainingListeners(new PerformanceListener(10, true, "GAN"));
+        gan.addTrainingListeners(new PerformanceListener(3, true, "GAN"));
+/*
+    Thread vt =
+        new Thread(
+            new Runnable() {
+              @Override
+              public void run() {
+                while (true) {
+                  visualize(0, 0, gen);
+                    try {
+                        Thread.sleep(10000);
+                    } catch (InterruptedException e) {
+                        throw new RuntimeException(e);
+                    }
+                }
+              }
+            });
+        vt.start();
+*/
 
-        int j = 0;
+        App2Display display = new App2Display();
-        for (int i = 0; i < 51; i++) { //epoch
+        //Repack training data with new fake/real label. Original MNist has 10 labels, one for each digit
+        DataSet data = null;
+        int j =0;
+        for(int i=0;i<App2Config.EPOCHS;i++) {
+            log.info("Epoch {}", i);
+            data = new DataSet(Nd4j.rand(BATCHSIZE, 784), label_fake);
+            while (trainData.hasNext()) {
+                j++;
+                INDArray real = trainData.next().getFeatures();
+                INDArray fakeIn = Nd4j.rand(BATCHSIZE, App2Config.INPUT);
+
+                INDArray fake = gan.activateSelectedLayers(0, gen.getLayers().length - 1,
+                        Nd4j.rand(BATCHSIZE, App2Config.INPUT));
+                //sigmoid output is -1 to 1
+                fake.addi(1f).divi(2f);
+
+                if (j % 50 == 1) {
+                  display.visualize(new INDArray[] {fake}, App2Config.OUTPUT_PER_PANEL, false);
+                  display.visualize(new INDArray[] {real}, App2Config.OUTPUT_PER_PANEL, true);
+                }
+
+
+                DataSet realSet = new DataSet(real, label_real);
+                DataSet fakeSet = new DataSet(fake, label_fake);
+
+                //start next round if there are not enough images left to have a full batchsize dataset
+                if(real.length() < ARRAY_SIZE_PER_SAMPLE*BATCHSIZE) {
+                    log.warn("Your total number of input images is not a multiple of {}, "
+                            + "thus skipping {} images to make it fit", BATCHSIZE, real.length()/ARRAY_SIZE_PER_SAMPLE);
+                    break;
+                }
+                //if(real.length()/BATCHSIZE!=784) break;
+                data = DataSet.merge(Arrays.asList(data, realSet, fakeSet));
+
+            }
+            //fit the discriminator
+            dis.fit(data);
+            dis.fit(data);
+            // Update the discriminator in the GAN network
+            updateGan(gen, dis, gan);
+
+            //reset the training data and fit the complete GAN
+            if (trainData.resetSupported()) {
+                trainData.reset();
+            } else {
+                log.error("Trainingdata {} does not support reset.", trainData.toString());
+            }
+            gan.fit(new DataSet(Nd4j.rand(BATCHSIZE, App2Config.INPUT), label_real));
+
+            if (trainData.resetSupported()) {
+                trainData.reset();
+            } else {
+                log.error("Trainingdata {} does not support reset.", trainData.toString());
+            }
+
+            log.info("Updated GAN's generator from gen.");
+            updateGen(gen, gan);
+            gen.save(new File("mnist-mlp-generator.dlj"));
+        }
+        //vt.stop();
+
+/*
+        int j;
+        for (int i = 0; i < App2Config.EPOCHS; i++) { //epoch
+            j=0;
             while (trainData.hasNext()) {
                 j++;
                 DataSet next = trainData.next();
@@ -212,122 +299,25 @@ public class App2 {
             log.info("Updated GAN's generator from gen.");
             gen.save(new File("mnist-mlp-generator.dlj"));
         }
-    }
+        */
-
-
-
-
-
-
-
-
-
-
-
-    private static JFrame visualize(INDArray[] samples, int batchElements, JFrame frame, boolean isOrig) {
-        if (isOrig) {
-            frame.setTitle("Viz Original");
-        } else {
-            frame.setTitle("Generated");
-        }
-
-        frame.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
-        frame.setLayout(new BorderLayout());
-
-        JPanel panelx = new JPanel();
-
-        panelx.setLayout(new GridLayout(4, 4, 8, 8));
-        for (INDArray sample : samples) {
-            for(int i = 0; i<batchElements; i++) {
-                panelx.add(getImage(sample, i, isOrig));
-            }
-        }
-        frame.add(panelx, BorderLayout.CENTER);
-        frame.setVisible(true);
-
-        frame.revalidate();
-        frame.setMinimumSize(new Dimension(300, 20));
-        frame.pack();
-        return frame;
-    }
-
-
-    private static JLabel getImage(INDArray tensor, int batchElement, boolean isOrig) {
-        final BufferedImage bi;
-        if(CHANNELS >1) {
-            bi = new BufferedImage(DIMENSIONS, DIMENSIONS, BufferedImage.TYPE_INT_RGB); //need to change here based on channels
-        } else {
-            bi = new BufferedImage(DIMENSIONS, DIMENSIONS, BufferedImage.TYPE_BYTE_GRAY); //need to change here based on channels
-        }
-        final int imageSize = DIMENSIONS * DIMENSIONS;
-        final int offset = batchElement * imageSize;
-        int pxl = offset * CHANNELS; //where to start in the INDArray
-
-        //Image in NCHW - channels first format
-        for (int c = 0; c < CHANNELS; c++) { //step through the num channels for each pixel
-            for (int y = 0; y < DIMENSIONS; y++) { // step through the columns x
-                for (int x = 0; x < DIMENSIONS; x++) { //step through the rows y
-                    float f_pxl = tensor.getFloat(pxl) * COLORSPACE;
-                    if(isOrig) log.trace("'{}.' Image (x,y,c): ({}, {}, {}) with INDArray with index {} and value '{}'", batchElement, x, y, c, pxl, f_pxl);
-                    bi.getRaster().setSample(x, y, c, f_pxl);
-                    pxl++; //next item in INDArray
-                }
-            }
-        }
-        ImageIcon orig = new ImageIcon(bi);
-        Image imageScaled = orig.getImage().getScaledInstance((4 * DIMENSIONS), (4 * DIMENSIONS), Image.SCALE_DEFAULT);
-        ImageIcon scaled = new ImageIcon(imageScaled);
-        if(! isOrig)  saveImage(imageScaled, batchElement, isOrig);
-        return new JLabel(scaled);
 
     }
 
-    private static void saveImage(Image image, int batchElement, boolean isOrig) {
-        String outputDirectory = OUTPUT_DIR; // Set the output directory where the images will be saved
 
-        try {
-            // Save the images to disk
-            saveImage(image, outputDirectory, UUID.randomUUID().toString()+".png");
 
-            log.debug("Images saved successfully.");
-        } catch (IOException e) {
-            log.error("Error saving the images: {}", e.getMessage());
-        }
-    }
-    private static void saveImage(Image image, String outputDirectory, String fileName) throws IOException {
-        File directory = new File(outputDirectory);
-        if (!directory.exists()) {
-            directory.mkdir();
-        }
 
-        File outputFile = new File(directory, fileName);
-        ImageIO.write(imageToBufferedImage(image), "png", outputFile);
-    }
 
-    public static BufferedImage imageToBufferedImage(Image image) {
-        if (image instanceof BufferedImage) {
-            return (BufferedImage) image;
-        }
 
-    // Create a buffered image with the same dimensions and transparency as the original image
-        BufferedImage bufferedImage;
-    if (CHANNELS > 1) {
-      bufferedImage =
-          new BufferedImage(
-              image.getWidth(null), image.getHeight(null), BufferedImage.TYPE_INT_ARGB);
-        } else {
-        bufferedImage =
-                new BufferedImage(
-                        image.getWidth(null), image.getHeight(null), BufferedImage.TYPE_BYTE_GRAY);
-        }
 
-        // Draw the original image onto the buffered image
-        Graphics2D g2d = bufferedImage.createGraphics();
-        g2d.drawImage(image, 0, 0, null);
-        g2d.dispose();
 
-        return bufferedImage;
+
-    }
+
+
+
+
+
+
+
     private static void updateGen(MultiLayerNetwork gen, MultiLayerNetwork gan) {
         for (int i = 0; i < gen.getLayers().length; i++) {
             gen.getLayer(i).setParams(gan.getLayer(i).getParams());
@@ -341,4 +331,41 @@ public class App2 {
         }
     }
 
+
+    @Test
+    void testDiskriminator() throws IOException {
+        MultiLayerNetwork net = new MultiLayerNetwork(App2Config.discriminator());
+        net.init();
+        net.addTrainingListeners(new PerformanceListener(10, true, "DIS"));
+        DataSetIterator trainData = new MnistDataSetIterator(BATCHSIZE, true, 42);
+
+        DataSet data = null;
+        for(int i=0;i<App2Config.EPOCHS;i++) {
+            log.info("Epoch {}", i);
+            data = new DataSet(Nd4j.rand(BATCHSIZE, 784), label_fake);
+            while (trainData.hasNext()) {
+                INDArray real = trainData.next().getFeatures();
+                long[] l = new long[]{BATCHSIZE, real.length() / BATCHSIZE};
+                INDArray fake = Nd4j.rand(l );
+
+                DataSet realSet = new DataSet(real, label_real);
+                DataSet fakeSet = new DataSet(fake, label_fake);
+                if(real.length()/BATCHSIZE!=784) break;
+                data = DataSet.merge(Arrays.asList(data, realSet, fakeSet));
+
+            }
+            net.fit(data);
+            trainData.reset();
+        }
+
+        long[] l = new long[]{BATCHSIZE, 784};
+        INDArray fake = Nd4j.rand(l );
+        DataSet fakeSet = new DataSet(fake, label_fake);
+        data = DataSet.merge(Arrays.asList(data, fakeSet));
+        ExistingDataSetIterator iter = new ExistingDataSetIterator(data);
+        Evaluation eval = net.evaluate(iter);
+        log.info( "\n" + eval.confusionMatrix());
+    }
+
+
 }

brutex-extended-tests/src/test/java/net/brutex/gan/App2Config.java

@@ -36,10 +36,17 @@ import org.nd4j.linalg.lossfunctions.LossFunctions;
 public class App2Config {
 
   public static final int INPUT = 100;
+  public static final int BATCHSIZE=150;
   public static final int X_DIM = 28;
-  public static final int y_DIM = 28;
+  public static final int Y_DIM = 28;
   public static final int CHANNELS = 1;
+  public static final int EPOCHS = 50;
   public static final IUpdater UPDATER = Adam.builder().learningRate(0.0002).beta1(0.5).build();
+  public static final IUpdater UPDATER_DIS = Adam.builder().learningRate(0.02).beta1(0.5).build();
+  public static final boolean SHOW_GENERATED = true;
+  public static final float COLORSPACE = 255f;
+
+  final static int OUTPUT_PER_PANEL = 10;
 
   static LayerConfiguration[] genLayerConfig() {
     return new LayerConfiguration[] {
@@ -158,7 +165,7 @@ public class App2Config {
                     .gradientNormalization(GradientNormalization.RenormalizeL2PerLayer)
                     .gradientNormalizationThreshold(100)
                     .seed(42)
-                    .updater(UPDATER)
+                    .updater(UPDATER_DIS)
                     .weightInit(WeightInit.XAVIER)
                     // .weightNoise(new WeightNoise(new NormalDistribution(0.5, 0.5)))
                     .weightNoise(null)

brutex-extended-tests/src/test/java/net/brutex/gan/App2Display.java

@@ -0,0 +1,160 @@
+/*
+ *
+ *    ******************************************************************************
+ *    *
+ *    * This program and the accompanying materials are made available under the
+ *    * terms of the Apache License, Version 2.0 which is available at
+ *    * https://www.apache.org/licenses/LICENSE-2.0.
+ *    *
+ *    *  See the NOTICE file distributed with this work for additional
+ *    *  information regarding copyright ownership.
+ *    * 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
+ *    *****************************************************************************
+ *
+ */
+
+package net.brutex.gan;
+
+import com.google.inject.Singleton;
+import lombok.extern.slf4j.Slf4j;
+import org.nd4j.linalg.api.ndarray.INDArray;
+
+import javax.imageio.ImageIO;
+import javax.swing.*;
+import java.awt.*;
+import java.awt.color.ColorSpace;
+import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.IOException;
+import java.util.UUID;
+
+import static net.brutex.gan.App2.OUTPUT_DIR;
+import static net.brutex.gan.App2Config.*;
+@Slf4j
+@Singleton
+public class App2Display {
+
+    private final JFrame frame = new JFrame();
+  private final App2GUI display = new App2GUI();
+
+  private final JPanel real_panel;
+  private final JPanel fake_panel;
+
+
+    public App2Display() {
+        frame.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
+        frame.setContentPane(display.getOverall_panel());
+        frame.setMinimumSize(new Dimension(300, 20));
+        frame.pack();
+        frame.setVisible(true);
+        real_panel = display.getReal_panel();
+        fake_panel = display.getGen_panel();
+        real_panel.setLayout(new GridLayout(4, 4, 8, 8));
+        fake_panel.setLayout(new GridLayout(4, 4, 8, 8));
+    }
+
+    public void visualize(INDArray[] samples, int batchElements, boolean isOrig) {
+        for (INDArray sample : samples) {
+            for(int i = 0; i<batchElements; i++) {
+                final Image img = this.getImage(sample, i, isOrig);
+                final ImageIcon icon = new ImageIcon(img);
+                if(isOrig) {
+                    if(real_panel.getComponents().length>=OUTPUT_PER_PANEL) {
+                        real_panel.remove(0);
+                    }
+                    real_panel.add(new JLabel(icon));
+                } else {
+                        if(fake_panel.getComponents().length>=OUTPUT_PER_PANEL) {
+                            fake_panel.remove(0);
+                        }
+                    fake_panel.add(new JLabel(icon));
+                }
+            }
+        }
+        frame.pack();
+        frame.repaint();
+    }
+
+    public Image getImage(INDArray tensor, int batchElement, boolean isOrig) {
+        final BufferedImage bi;
+        if(CHANNELS >1) {
+            bi = new BufferedImage(X_DIM, Y_DIM, BufferedImage.TYPE_INT_RGB); //need to change here based on channels
+        } else {
+            bi = new BufferedImage(X_DIM, Y_DIM, BufferedImage.TYPE_BYTE_GRAY); //need to change here based on channels
+        }
+        final int imageSize = X_DIM * Y_DIM;
+        final int offset = batchElement * imageSize;
+        int pxl = offset * CHANNELS; //where to start in the INDArray
+
+        //Image in NCHW - channels first format
+        for (int c = 0; c < CHANNELS; c++) { //step through the num channels for each pixel
+            for (int y = 0; y < X_DIM; y++) { // step through the columns x
+                for (int x = 0; x < Y_DIM; x++) { //step through the rows y
+                    float f_pxl = tensor.getFloat(pxl) * COLORSPACE;
+                    if(isOrig) log.trace("'{}.'{} Image (x,y,c): ({}, {}, {}) with INDArray with index {} and value '{}'", batchElement, isOrig ? "Real" : "Fake", x, y, c, pxl, f_pxl);
+                    bi.getRaster().setSample(x, y, c, f_pxl);
+                    pxl++; //next item in INDArray
+                }
+            }
+        }
+        ImageIcon orig = new ImageIcon(bi);
+        Image imageScaled = orig.getImage().getScaledInstance((4 * X_DIM), (4 * Y_DIM), Image.SCALE_DEFAULT);
+        ImageIcon scaled = new ImageIcon(imageScaled);
+        //if(! isOrig)  saveImage(imageScaled, batchElement, isOrig);
+        return imageScaled;
+
+    }
+
+    private static void saveImage(Image image, int batchElement, boolean isOrig) {
+        String outputDirectory = OUTPUT_DIR; // Set the output directory where the images will be saved
+
+        try {
+            // Save the images to disk
+            saveImage(image, outputDirectory, UUID.randomUUID().toString()+".png");
+
+            log.debug("Images saved successfully.");
+        } catch (IOException e) {
+            log.error("Error saving the images: {}", e.getMessage());
+        }
+    }
+    private static void saveImage(Image image, String outputDirectory, String fileName) throws IOException {
+        File directory = new File(outputDirectory);
+        if (!directory.exists()) {
+            directory.mkdir();
+        }
+
+        File outputFile = new File(directory, fileName);
+        ImageIO.write(imageToBufferedImage(image), "png", outputFile);
+    }
+
+    public static BufferedImage imageToBufferedImage(Image image) {
+        if (image instanceof BufferedImage) {
+            return (BufferedImage) image;
+        }
+
+        // Create a buffered image with the same dimensions and transparency as the original image
+        BufferedImage bufferedImage;
+        if (CHANNELS > 1) {
+            bufferedImage =
+                    new BufferedImage(
+                            image.getWidth(null), image.getHeight(null), BufferedImage.TYPE_INT_ARGB);
+        } else {
+            bufferedImage =
+                    new BufferedImage(
+                            image.getWidth(null), image.getHeight(null), BufferedImage.TYPE_BYTE_GRAY);
+        }
+
+        // Draw the original image onto the buffered image
+        Graphics2D g2d = bufferedImage.createGraphics();
+        g2d.drawImage(image, 0, 0, null);
+        g2d.dispose();
+
+        return bufferedImage;
+    }
+}

brutex-extended-tests/src/test/java/net/brutex/gan/App2GUI.java

@@ -0,0 +1,61 @@
+package net.brutex.gan;
+
+import javax.swing.JPanel;
+import javax.swing.JSplitPane;
+import javax.swing.JLabel;
+import java.awt.BorderLayout;
+
+public class App2GUI extends JPanel {
+
+	/**
+	 * 
+	 */
+	private static final long serialVersionUID = 1L;
+	private JPanel overall_panel;
+	private JPanel real_panel;
+	private JPanel gen_panel;
+
+	/**
+	 * Create the panel.
+	 */
+	public App2GUI() {
+		
+		overall_panel = new JPanel();
+		add(overall_panel);
+		
+		JSplitPane splitPane = new JSplitPane();
+		overall_panel.add(splitPane);
+		
+		JPanel p1 = new JPanel();
+		splitPane.setLeftComponent(p1);
+		p1.setLayout(new BorderLayout(0, 0));
+		
+		JLabel lblNewLabel = new JLabel("Generator");
+		p1.add(lblNewLabel, BorderLayout.NORTH);
+		
+		gen_panel = new JPanel();
+		p1.add(gen_panel, BorderLayout.SOUTH);
+		
+		JPanel p2 = new JPanel();
+		splitPane.setRightComponent(p2);
+		p2.setLayout(new BorderLayout(0, 0));
+		
+		JLabel lblNewLabel_1 = new JLabel("Real");
+		p2.add(lblNewLabel_1, BorderLayout.NORTH);
+		
+		real_panel = new JPanel();
+		p2.add(real_panel, BorderLayout.SOUTH);
+
+	}
+
+
+	public JPanel getOverall_panel() {
+		return overall_panel;
+	}
+	public JPanel getReal_panel() {
+		return real_panel;
+	}
+	public JPanel getGen_panel() {
+		return gen_panel;
+	}
+}