switch to GDAL for image reading

src/mustic/gui/ImageSession.java

@@ -238,10 +238,12 @@ public class ImageSession extends ImageManager {
 	public void mask() {
 		JFileChooser fileChooser = new JFileChooser(Messages.getString("ImageSession.9")); //$NON-NLS-1$
 		int returnVal = fileChooser.showOpenDialog(((ImagePanel) this.displayer));
+		fileChooser.setCurrentDirectory(MainFrame.getInstance().getCurrentDirectory());
 
 		if (returnVal == JFileChooser.APPROVE_OPTION) {
 			File file = fileChooser.getSelectedFile();
 			this.rawImage.setMask(file);
+			MainFrame.getInstance().setCurrentDirectory(file.getParentFile());
 		}
 
 		if (displayEnable) {

src/mustic/gui/MainFrame.java

@@ -150,6 +150,13 @@ public class MainFrame extends JFrame {
 
 	/** The session storing tree for datas */
 	private DefaultTreeModel	   	mDataTreeModel;
+	
+	/** saved dimensions used to display side menu panels */
+	private Dimension				mImageProjectDimension	= new Dimension(180, 100);
+	
+	private Dimension				mDataProjectDimension	= new Dimension(160, 50);
+	
+	private Dimension				mInfoDimension			= new Dimension(180, 100);
 
 	/**
 	 * Nombre de threads
@@ -1464,13 +1471,29 @@ public class MainFrame extends JFrame {
 		treeDataPanel.add(treeDataScrollPane, BorderLayout.CENTER);
 
 		sif_treeDataPanel = new SimpleInternalFrame(Messages.getString("MainFrame.69")); //$NON-NLS-1$
-		sif_treeDataPanel.setPreferredSize(new Dimension(160, 50));
+		sif_treeDataPanel.setPreferredSize(mDataProjectDimension);
 		sif_treeDataPanel.add(treeDataPanel);
 		
 		// Creation of the Project Tree Interface for images
 		JPanel treeImagePanel = new JPanel(new BorderLayout());
 		JScrollPane treeImageScrollPane = new JScrollPane(this.mImageProjectTree);
-		treeImageScrollPane.setPreferredSize(new Dimension(180, 100));
+		treeImageScrollPane.setPreferredSize(mImageProjectDimension);
+		treeDataScrollPane.addComponentListener(new ComponentListener() {
+			@Override
+			public void componentShown(ComponentEvent e) {
+			}
+			@Override
+			public void componentResized(ComponentEvent e) {
+				mImageProjectDimension = e.getComponent().getSize();
+				
+			}
+			@Override
+			public void componentMoved(ComponentEvent e) {
+			}
+			@Override
+			public void componentHidden(ComponentEvent e) {
+			}
+		});
 		treeImagePanel.add(treeImageScrollPane, BorderLayout.CENTER);
 
 		sif_treeImagePanel = new SimpleInternalFrame(Messages.getString("MainFrame.691")); //$NON-NLS-1$

src/mustic/gui/dialog/MaskImportDialog.java

@@ -18,10 +18,11 @@ import javax.swing.JTextField;
 import jcl.data.mask.IntArrayMask;
 import jcl.data.mask.Mask;
 import jcl.data.mask.MultiIDIntArrayMask;
-import jcl.utils.Images.StreamedImageReaderWrapper;
 import mustic.gui.dialog.Messages;
 import mustic.gui.panels.data.DataConstructPanel;
 import mustic.io.RawImage;
+import mustic.utils.image.reader.GDALImageReaderWrapper;
+import mustic.utils.image.reader.ReaderWrapper;
 import mustic.utils.io.CSVUtils;
 
 
@@ -168,7 +169,7 @@ public class MaskImportDialog extends JDialog {
 		// get the mask itself
 		int[] content = null;
 		try {
-			StreamedImageReaderWrapper reader = new StreamedImageReaderWrapper(path);
+			ReaderWrapper reader = new GDALImageReaderWrapper(path);
 			content = new int[reader.getImageWidth()*reader.getImageHeight()];
 			int index = 0;
 			for(int y = 0 ; y < reader.getImageHeight() ; y++) {

src/mustic/gui/dialog/arff/ArffToDataDialog.java

@@ -23,7 +23,6 @@ import jcl.data.Data;
 import jcl.data.DataObject;
 import jcl.data.SimpleData;
 import jcl.data.attribute.AttributeMultiDimSequence;
-import jcl.data.sampling.ImportedImageSampler;
 import mustic.gui.MainFrame;
 import mustic.gui.dialog.Messages;
 import mustic.gui.dialog.SequenceDialog;
@@ -31,6 +30,7 @@ import mustic.io.ImageData;
 import mustic.io.RawImage;
 import mustic.utils.documentFilter.ToUpdateObject;
 import mustic.utils.io.dataExchange.DataArffExchange;
+import mustic.utils.jclAdapters.ImportedImageSampler;
 
 
 /**

src/mustic/gui/dialog/csv/CSVToDataDialog.java

 package mustic.gui.dialog.csv;
 
 import java.awt.BorderLayout;
-import java.awt.Dialog;
 import java.awt.Dimension;
 import java.awt.GridLayout;
 import java.awt.event.ActionEvent;
@@ -12,7 +11,6 @@ import java.io.File;
 import java.io.FileNotFoundException;
 import java.util.ArrayList;
 import java.util.List;
-import java.util.Vector;
 
 import javax.swing.JButton;
 import javax.swing.JFileChooser;
@@ -22,24 +20,15 @@ import javax.swing.JOptionPane;
 import javax.swing.JPanel;
 import javax.swing.JTextField;
 
-import org.hibernate.mapping.Array;
-
 import jcl.data.Data;
 import jcl.data.DataObject;
 import jcl.data.SimpleData;
 import jcl.data.attribute.AttributeMultiDimSequence;
-import jcl.data.sampling.ImportedImageSampler;
 import mustic.gui.MainFrame;
 import mustic.gui.dialog.Messages;
-import mustic.gui.dialog.SequenceDialog;
-import mustic.io.ImageData;
-import mustic.io.RawImage;
 import mustic.utils.documentFilter.ToUpdateObject;
 import mustic.utils.image.ImageHelper;
 import mustic.utils.io.CSVUtils;
-import mustic.utils.io.dataExchange.DataArffExchange;
-import weka.core.Instance;
-import weka.core.Instances;
 
 
 /**
@@ -151,7 +140,7 @@ public class CSVToDataDialog extends JInternalFrame implements ToUpdateObject {
 		}
 	}
 
-	@SuppressWarnings({ "unchecked", "deprecation" })
+	@SuppressWarnings({"deprecation"})
 	protected void buttonOk_actionPerformed() {
 		try {
 			List<DataObject> result = new ArrayList<DataObject>();

src/mustic/gui/panels/data/DataConstructPanel.java

@@ -16,7 +16,6 @@ import com.l2fprod.common.swing.JTaskPane;
 import com.l2fprod.common.swing.JTaskPaneGroup;
 
 import jcl.data.mask.Mask;
-import jcl.data.sampling.ImageSampler;
 import jcl.data.sampling.Sampler;
 import mustic.gui.ImageDesktopFrame;
 import mustic.gui.ImageSession;
@@ -27,6 +26,7 @@ import mustic.gui.panels.data.components.SourceSelectionPanel;
 import mustic.io.ImageData;
 import mustic.io.RawImage;
 import mustic.utils.documentFilter.ToUpdateObject;
+import mustic.utils.jclAdapters.ImageSampler;
 
 /**
  * Display the tools to generate a Data object

src/mustic/gui/panels/data/components/SourceSelectionPanel.java

@@ -19,8 +19,6 @@ import javax.swing.JLabel;
 import javax.swing.JPanel;
 import javax.swing.JRadioButton;
 
-import jcl.data.sampling.ImageSampler;
-import loci.formats.FormatException;
 import mustic.gui.ImageDesktopFrame;
 import mustic.gui.ImageSession;
 import mustic.gui.MainFrame;
@@ -29,6 +27,7 @@ import mustic.gui.panels.data.DataConstructPanel;
 import mustic.gui.panels.data.Messages;
 import mustic.io.MusticImageMask;
 import mustic.io.RawImage;
+import mustic.utils.jclAdapters.ImageSampler;
 
 /**
  * JPanel that allows the user to select the source for a data
@@ -333,7 +332,7 @@ public class SourceSelectionPanel extends JPanel {
 				} else {
 					fatherContainer.setSample(new ImageSampler(filesPaths));
 				}
-			} catch (FormatException e) {
+			} catch (Exception e) {
 				e.printStackTrace();
 			}
 		}
@@ -345,8 +344,12 @@ public class SourceSelectionPanel extends JPanel {
 		int index = monoDateComboBox.getSelectedIndex();
 		
 		if (index < desktopFrames.length && index != -1) {
-			fatherContainer.setSample(new ImageSampler(allImageDesktopFrames[index]
-					.getImageSession().getImageFilePath()));
+			try {
+				fatherContainer.setSample(new ImageSampler(allImageDesktopFrames[index]
+						.getImageSession().getImageFilePath()));
+			} catch (Exception e) {
+				e.printStackTrace();
+			}
 			Vector<RawImage> filesPath = new Vector<RawImage>();
 			filesPath.add(allImageDesktopFrames[index]
 					.getImageSession().getRawImage());

src/mustic/io/ImageData.java

@@ -9,12 +9,11 @@ import jcl.data.SimpleData;
 import jcl.data.attribute.AttributeMultiDimSequence;
 import jcl.data.attribute.AttributeNumerical;
 import jcl.data.mask.Mask;
-import jcl.data.sampling.ImageSampler;
 import jcl.data.sampling.Sampler;
 import jcl.utils.exceptions.MethodNotImplementedException;
 import mustic.gui.ImageSession;
 import mustic.gui.MainFrame;
-import mustic.models.thread.ProgressThreadJCL;
+import mustic.utils.jclAdapters.ImageSampler;
 
 /**
  * <p>

src/mustic/io/MusticImageMask.java

@@ -8,8 +8,8 @@ import java.io.IOException;
 import java.util.Iterator;
 
 import jcl.data.mask.Mask;
-import jcl.utils.Images.StreamedImageReaderWrapper;
-import loci.formats.FormatException;
+import mustic.utils.image.reader.GDALImageReaderWrapper;
+import mustic.utils.image.reader.ReaderWrapper;
 
 //import mustic.io.bsq.BSQImage;
 
@@ -122,18 +122,18 @@ public class MusticImageMask implements Mask {
 	public final static String			EXTENSION		= ".mask";
 
 	public MusticImageMask(File file) {
-		StreamedImageReaderWrapper reader = new StreamedImageReaderWrapper(file.getAbsolutePath());
-		width = reader.getImageWidth();
-		height = reader.getImageHeight();
-		res = new boolean[width][height];
 
 		try {
+			ReaderWrapper reader = new GDALImageReaderWrapper(file.getAbsolutePath());
+			width = reader.getImageWidth();
+			height = reader.getImageHeight();
+			res = new boolean[width][height];
 			for (int x = 0; x < width; x++) {
 				for (int y = 0; y < height; y++) {
 					res[x][y] = (reader.getPixel(x, y)[0] == 0) ? true : false;
 				}
 			}
-		} catch (FormatException | IOException e) {
+		} catch (Exception e) {
 			e.printStackTrace();
 		}
 	}

src/mustic/io/RawImage.java

@@ -18,6 +18,8 @@ import mustic.gui.Messages;
 import mustic.gui.dialog.MaskImportDialog;
 import mustic.io.roi.ROIImage;
 import mustic.io.roi.RegionOfInterest;
+import mustic.utils.image.reader.GDALImageReaderWrapper;
+import mustic.utils.image.reader.ReaderWrapper;
 import otbAppWrapping.*;
 
 import com.l2fprod.common.propertysheet.DefaultProperty;
@@ -25,7 +27,6 @@ import com.l2fprod.common.propertysheet.Property;
 
 import jcl.data.mask.Mask;
 import jcl.utils.MemoryFlush;
-import jcl.utils.Images.StreamedImageReaderWrapper;
 import jcl.utils.exceptions.MethodNotImplementedException;
 
 /**
@@ -2253,20 +2254,20 @@ public class RawImage extends Observable implements Serializable, MemoryFlush
 	 * Compute teh min/max values per channel
 	 */
 	private void computeMinMax() {
-		StreamedImageReaderWrapper reader = new StreamedImageReaderWrapper(filename);
 		long allocatedMemory = (Runtime.getRuntime().totalMemory()-Runtime.getRuntime().freeMemory());
 		long presumableFreeMemory = Runtime.getRuntime().maxMemory() - allocatedMemory;
 		// we just tack the 2/3rd of the memory available;
 		presumableFreeMemory *= 0.05;
 		try {
+			ReaderWrapper reader = new GDALImageReaderWrapper(filename);
 			reader.setMaxRAM(presumableFreeMemory);
-		} catch (IOException e) {
+			minValues = reader.getMinValues();
+			maxValues = reader.getMaxValues();
+			scaledMinValues = reader.getMinValues();
+			scaledMaxValues = reader.getMaxValues();
+		} catch (Exception e) {
 			e.printStackTrace();
 		}
-		minValues = reader.getMinValues();
-		maxValues = reader.getMaxValues();
-		scaledMinValues = reader.getMinValues();
-		scaledMaxValues = reader.getMaxValues();
 	}
 	
 	@Override

src/mustic/utils/image/BufferedImageHelper.java

@@ -9,10 +9,8 @@ import java.awt.image.Raster;
 import java.awt.image.SampleModel;
 import java.awt.image.SinglePixelPackedSampleModel;
 import java.awt.image.WritableRaster;
-import java.io.IOException;
 
-import jcl.utils.Images.StreamedImageReaderWrapper;
-import loci.formats.FormatException;
+import mustic.utils.image.reader.ReaderWrapper;
 
 /**
  * Class that allows buffer manipulation and creation from images.
@@ -213,12 +211,12 @@ public class BufferedImageHelper {
 	 * 			a reader that points to the image to use
 	 *
 	 * @return the BufferedImage containing the selection
-	 * @throws IOException If there is a problem reading the file
-	 * @throws FormatException If there is a problem parsing the image's metadata
+	 * @throws Exception If there is a problem reading the file
+	 * 					 If there is a problem parsing the image's metadata
 	 */
 	public static BufferedImage getSubImage(int imageX, int imageY, int imageWidth, int imageHeight,
 			int r, int g, int b, double[] minValues, double[] maxValues, 
-			StreamedImageReaderWrapper reader) throws FormatException, IOException {
+			ReaderWrapper reader) throws Exception {
 		if (r < 0 || r >= reader.getChannelCount() || g < 0 || g >= reader.getChannelCount()
 				|| b < 0 || b >= reader.getChannelCount()) {
 			throw new IndexOutOfBoundsException("R, G and B index should respect"

src/mustic/utils/image/reader/GDALImageReaderWrapper.java

+package mustic.utils.image.reader;
+
+
+import org.gdal.gdal.Band;
+import org.gdal.gdal.Dataset;
+import org.gdal.gdal.gdal;
+import org.gdal.gdalconst.gdalconst;
+
+import jcl.utils.exceptions.MethodNotImplementedException;
+
+/**
+ * Reader tool used to access to the data using the gdal library
+ * @author Baptiste LAFABREGUE
+ *
+ */
+public class GDALImageReaderWrapper extends ReaderWrapper {
+
+	/** the dataset that link to the image to read */
+	private	Dataset 			dataSet			= null;
+	
+	/** the projection of the image */
+	private String				projection		= "";
+	
+	/** the geotransform of the image */
+	private double[]			geoTransform	= null;
+	
+	private boolean 			approxOK		= true;
+	
+	private	double[][]			tile			= null;
+	
+	private String				filePath		= null;
+	
+	/**	 */
+	private static final long serialVersionUID = 1L;
+	
+	/**
+	 * <p>
+	 * Constructor
+	 * <p>
+	 * 
+	 * @param path
+	 * 			The image file path
+	 * @throws Exception 
+	 * 			Error when creating the GDAL DataSet
+	 */
+	public GDALImageReaderWrapper(String Path) throws Exception {
+		this.filePath = Path;
+		gdal.AllRegister();
+		dataSet = gdal.Open(Path, gdalconst.GA_ReadOnly);
+		if (dataSet == null) {
+			throw new Exception("GDAL : Error when opening the file");	
+		} else {
+			this.tile = null;
+			this.imageWidth = dataSet.GetRasterXSize();
+			this.imageHeight = dataSet.GetRasterYSize();
+			this.channelCount = dataSet.GetRasterCount();
+			// we set the optimal tile width to the first band of the raster
+			this.optimaleTileWidth = dataSet.GetRasterBand(1).GetBlockXSize();
+			this.optimaleTileHeight = dataSet.GetRasterBand(1).GetBlockYSize();
+			this.tileWidth = this.optimaleTileWidth;
+			this.tileHeight = this.optimaleTileHeight;
+			this.endY = imageHeight;
+			this.bytesPerPixel = 64;
+			this.projection = dataSet.GetProjectionRef();
+			this.geoTransform = dataSet.GetGeoTransform();
+		}
+		
+	}
+
+	public GDALImageReaderWrapper(GDALImageReaderWrapper gdalImageReaderWrapper) throws Exception {
+		this.filePath = gdalImageReaderWrapper.filePath;
+		gdal.AllRegister();
+		dataSet = gdal.Open(gdalImageReaderWrapper.filePath, gdalconst.GA_ReadOnly);
+		if (dataSet == null) {
+			throw new Exception("GDAL : Error when opening the file");	
+		} else {
+			this.tile = null;
+			this.imageWidth = dataSet.GetRasterXSize();
+			this.imageHeight = dataSet.GetRasterYSize();
+			this.channelCount = dataSet.GetRasterCount();
+			// we set the optimal tile width to the first band of the raster
+			this.optimaleTileWidth = dataSet.GetRasterBand(1).GetBlockXSize();
+			this.optimaleTileHeight = dataSet.GetRasterBand(1).GetBlockYSize();
+			this.tileWidth = this.optimaleTileWidth;
+			this.tileHeight = this.optimaleTileHeight;
+			this.endY = imageHeight;
+			this.bytesPerPixel = 64;
+			this.projection = dataSet.GetProjectionRef();
+			this.geoTransform = dataSet.GetGeoTransform();
+			this.extrema = gdalImageReaderWrapper.extrema;
+			setMaxRAM(gdalImageReaderWrapper.maxRAM);
+		} 
+	}
+
+	@Override
+	protected double[][] getExtrema() {
+		if (extrema == null) {
+			extrema = new double[2][channelCount];
+			for (int i = 0 ; i < channelCount ; i++) {
+				Double[] min = new Double[1];
+				Double[] max = new Double[1];
+				dataSet.GetRasterBand(i+1).GetMinimum(min);
+				dataSet.GetRasterBand(i+1).GetMaximum(max);
+				if (min[0] == null || max[0] == null) {
+					double[] minMax = new double[2];
+					int approx = 1;
+					if (!approxOK) {
+						approx = 0;
+					}
+					dataSet.GetRasterBand(i+1).ComputeRasterMinMax(minMax, approx);
+					extrema[0][i] = minMax[0];
+					extrema[1][i] = minMax[1];
+					
+				} else {
+					extrema[0][i] = min[0];
+					extrema[1][i] = max[0];
+				}
+			}
+		}
+		
+		return extrema;
+	}
+
+	@Override
+	public double[] getPixel(int x, int y) throws Exception {
+		double[] result = new double[channelCount];
+		if(!isInImage(x,y)) {
+			return result;
+		}
+		if (!isInTile(x, y)) {
+			loadTile(x, y);
+		}
+		
+		int index = x - tileX + (y - tileY) * currentTileWidth;
+		for (int i = 0 ; i < channelCount ; i++) {
+			result[i] = tile[i][index];
+		}
+
+		return result;
+	}
+
+	@Override
+	public void loadTile(int x, int y) throws Exception {
+		tileX = x - x % tileWidth;
+		tileY = y - y % tileHeight;
+		if (tileY < startY) {
+			tileY = startY;
+		}
+		
+		if (tileX < startX) {
+			tileX = startX;
+		}
+				
+		currentTileHeight = tileHeight;
+		if (endY > 0) {
+			if (currentTileHeight+tileY > endY)
+				currentTileHeight = endY - tileY;
+		} else {
+			if (currentTileHeight+tileY > imageHeight)
+				currentTileHeight = imageHeight - tileY;
+		}
+		
+		currentTileWidth = tileWidth;
+		if (endX > -1) {
+			if (currentTileWidth+tileX > endX)
+				currentTileWidth = endX - tileX;
+		} else {
+			if (currentTileWidth+tileX > imageWidth)
+				currentTileWidth = imageWidth - tileX;
+		}
+
+		tile = new double[channelCount][currentTileWidth*currentTileHeight];
+		for (int i = 0 ; i < channelCount ; i++) {
+			Band band = dataSet.GetRasterBand(i+1);
+			int flag = band.ReadRaster(tileX, tileY, currentTileWidth, currentTileHeight, tile[i]);
+			if (flag != gdalconst.CE_None) {
+				throw new Exception("GDAL : Error while reading the raster band of image "+dataSet.GetDescription());
+			}
+		}
+		tileLoaded = true;
+//		System.out.println("Tile of "+currentTileWidth+"x"+currentTileHeight+" - "+tileX+","+tileY+" for image of "+imageWidth+"x"+imageHeight);
+		
+	}
+
+	@Override
+	public int getBytesPerPixel() {
+		//TODO : not implemented yet
+		return 0;
+	}
+
+	@Override
+	public Object clone() {
+		try {
+			return new GDALImageReaderWrapper(this);
+		} catch (Exception e) {
+			e.printStackTrace();
+			return null;
+		}
+	}
+
+	/**
+	 * Fetch the affine transformation coefficients.
+	 * Fetches the coefficients for transforming between pixel/line (P,L) raster space, and projection coordinates (Xp,Yp) space.
+	 * 
+	 * Xp = geoTransformArray[0] + P*geoTransformArray[1] + L*geoTransformArray[2];
+   	 * Yp = geoTransformArray[3] + P*geoTransformArray[4] + L*geoTransformArray[5];
+ 	 * 
+	 * In a north up image, geoTransformArray[1] is the pixel width, and geoTransformArray[5] is the pixel height. The upper left corner of the upper left pixel is at position (geoTransformArray[0],geoTransformArray[3]).
+	 * The default transform is (0,1,0,0,0,1) and should be returned even when an error occurs, such as for formats that don't support transformation to projection coordinates. 
+	 * 
+	 * @return the transformation coefficients
+	 */
+	public double[] getGeoTransform() {
+		return geoTransform;
+	}
+
+	public String getProjection() {
+		return projection;
+	}
+
+	@Override
+	public void flushMemory() throws MethodNotImplementedException {
+		tile = null;
+		dataSet.delete();
+		
+	}
+	
+	public static void main(String[] args) {
+		
+		String path = "/home/baptiste/Data/malaoui/evi_2013_2014.tif";
+		
+		long allocatedMemory = (Runtime.getRuntime().totalMemory()-Runtime.getRuntime().freeMemory());
+		long presumableFreeMemory = Runtime.getRuntime().maxMemory() - allocatedMemory;
+		// we just tack the 2/3rd of the memory available;
+		presumableFreeMemory *= 0.05;
+		
+		long memoryPerReader = presumableFreeMemory ;
+		try {
+			GDALImageReaderWrapper reader = new GDALImageReaderWrapper(path);
+			reader.setMaxRAM(memoryPerReader);
+			
+			double[] pixel = reader.getPixel(0, 0);
+			System.out.println("pixel 0,0" );
+			for (int i = 0 ; i < pixel.length ; i++) {
+				System.out.print(pixel[i]+";");
+			}
+			System.out.print("\n");
+			
+			pixel = reader.getPixel(2000, 2000);
+			System.out.println("pixel 2000,2000" );
+			for (int i = 0 ; i < pixel.length ; i++) {
+				System.out.print(pixel[i]+";");
+			}
+			System.out.print("\n");
+			
+			pixel = reader.getPixel(2051, 6000);
+			System.out.println("pixel 2000,2000" );
+			for (int i = 0 ; i < pixel.length ; i++) {
+				System.out.print(pixel[i]+";");
+			}
+			System.out.print("\n");
+			
+			pixel = reader.getPixel(2052, 6000);
+			System.out.println("pixel 2000,2000" );
+			for (int i = 0 ; i < pixel.length ; i++) {
+				System.out.print(pixel[i]+";");
+			}
+			System.out.print("\n");
+			
+		} catch (Exception e) {
+			e.printStackTrace();
+		}
+		
+//		long startT = System.nanoTime(); 
+//		System.out.println("start at "+startT);
+//		double[][] extrema = reader.getExtrema();
+//		long endT = System.nanoTime();
+//		System.out.println("endat "+ endT + " total of "+ (endT - startT)/1000000l +"ms");
+//		System.out.println("extrema : "+Arrays.deepToString(extrema));
+	}
+	
+}

src/mustic/utils/image/reader/ImageReaderWrapper.java

+package mustic.utils.image.reader;
+
+import java.io.ByteArrayInputStream;
+import java.io.DataInputStream;
+import java.io.IOException;
+import java.util.Arrays;
+
+import loci.formats.FormatException;
+import loci.formats.FormatTools;
+import loci.formats.ImageReader;
+
+/**
+ * <p>
+ * Wrapper au dessus des fonctions de lecture d'image de la libraire
+ * bio-formats qui permet de lire les images par tuile.
+ * <p>
+ * 
+ * @author Baptiste LAFABREGUE
+ *
+ */
+public class ImageReaderWrapper {
+	ImageReader reader = null;
+	
+	int currentImageIndex = 0;
+
+	public ImageReaderWrapper() {
+		reader = new ImageReader();
+	}
+	
+	/**
+	 * <p>
+	 * Definit l'image a utiliser
+	 * <p>
+	 * 
+	 * @param path
+	 * 			le chemin d'acces de l'image
+	 * 
+	 * @throws FormatException
+	 * @throws IOException
+	 */
+	public void setImage(String path) throws FormatException, IOException {
+		reader.setId(path);
+	}
+
+	/**
+	 * <p>
+	 * Renvoi un tableau de byte qui contient pour chaque coordonnee contient sa 
+	 * valeur sous la forme d'un tableau de byte pour une vue donnee de l'image.
+	 * Format : byte[x][y][pixels]
+	 * 
+	 * A noter que si les pixels font n bytes, les n premiers bytes seront pour la bande 1,
+	 * les n suivant pour la bande 2, ect ..
+	 * <p>
+	 * 
+	 * @param x
+	 * 			l'absisse du coin haut-gauche de la vue
+	 * @param y
+	 * 			l'ordonnee du coin haut-gauche de la vue
+	 * @param w
+	 * 			la largeur de la vue
+	 * @param h
+	 * 			la hauteur de la vue
+	 * @return le tableau de byte contenant les valeus de la vue
+	 * 
+	 * @throws IOException 
+	 * 			si il y a eu un probleme en lisant le fichier
+	 * @throws FormatException 
+	 * 			si il y a eu un probleme en parsant les metadata du fichier
+	 */
+	public byte[][][] getPixels(int x, int y, int w, int h) throws FormatException, IOException {
+		byte[] rawData = reader.openBytes(currentImageIndex, x, y, w, h);
+		int channelCount = reader.getRGBChannelCount();
+		int pixelSize = reader.getBitsPerPixel()/8;
+		// test si on a bien le nombre attendu de pixels
+		if(rawData.length != w * h * channelCount * pixelSize) {
+			throw new IndexOutOfBoundsException("La taille du tableau de byte renvoye n'est pas celle attendue.");
+		}
+		int channelGap = rawData.length / channelCount;
+		
+		byte[][][] result = new byte[w][h][channelCount*pixelSize];
+		
+		int index = 0;
+		for(int j = 0 ; j < h ; j++) {
+			for(int i = 0 ; i < w ; i++) {
+				for(int c = 0 ; c < channelCount ; c++) {
+					for(int p = 0 ; p < pixelSize ; p++) {
+						result[i][j][c*pixelSize+p] = rawData[index+channelGap*c+p];
+					}
+				}
+				index++;
+			}
+		}
+		
+		return result;
+	}
+