List of usage examples for java.awt.image IndexColorModel IndexColorModel
public IndexColorModel(int bits, int size, int[] cmap, int start, int transferType, BigInteger validBits)
From source file:org.eclipse.swt.snippets.Snippet156.java
static BufferedImage convertToAWT(ImageData data) { ColorModel colorModel = null; PaletteData palette = data.palette;//from www . j av a 2 s . co m if (palette.isDirect) { colorModel = new DirectColorModel(data.depth, palette.redMask, palette.greenMask, palette.blueMask); BufferedImage bufferedImage = new BufferedImage(colorModel, colorModel.createCompatibleWritableRaster(data.width, data.height), false, null); for (int y = 0; y < data.height; y++) { for (int x = 0; x < data.width; x++) { int pixel = data.getPixel(x, y); RGB rgb = palette.getRGB(pixel); bufferedImage.setRGB(x, y, rgb.red << 16 | rgb.green << 8 | rgb.blue); } } return bufferedImage; } else { RGB[] rgbs = palette.getRGBs(); byte[] red = new byte[rgbs.length]; byte[] green = new byte[rgbs.length]; byte[] blue = new byte[rgbs.length]; for (int i = 0; i < rgbs.length; i++) { RGB rgb = rgbs[i]; red[i] = (byte) rgb.red; green[i] = (byte) rgb.green; blue[i] = (byte) rgb.blue; } if (data.transparentPixel != -1) { colorModel = new IndexColorModel(data.depth, rgbs.length, red, green, blue, data.transparentPixel); } else { colorModel = new IndexColorModel(data.depth, rgbs.length, red, green, blue); } BufferedImage bufferedImage = new BufferedImage(colorModel, colorModel.createCompatibleWritableRaster(data.width, data.height), false, null); WritableRaster raster = bufferedImage.getRaster(); int[] pixelArray = new int[1]; for (int y = 0; y < data.height; y++) { for (int x = 0; x < data.width; x++) { int pixel = data.getPixel(x, y); pixelArray[0] = pixel; raster.setPixel(x, y, pixelArray); } } return bufferedImage; } }
From source file:Snippet156.java
static BufferedImage convertToAWT(ImageData data) { ColorModel colorModel = null; PaletteData palette = data.palette;//from w w w . ja v a2s . c om if (palette.isDirect) { colorModel = new DirectColorModel(data.depth, palette.redMask, palette.greenMask, palette.blueMask); BufferedImage bufferedImage = new BufferedImage(colorModel, colorModel.createCompatibleWritableRaster(data.width, data.height), false, null); WritableRaster raster = bufferedImage.getRaster(); int[] pixelArray = new int[3]; for (int y = 0; y < data.height; y++) { for (int x = 0; x < data.width; x++) { int pixel = data.getPixel(x, y); RGB rgb = palette.getRGB(pixel); pixelArray[0] = rgb.red; pixelArray[1] = rgb.green; pixelArray[2] = rgb.blue; raster.setPixels(x, y, 1, 1, pixelArray); } } return bufferedImage; } else { RGB[] rgbs = palette.getRGBs(); byte[] red = new byte[rgbs.length]; byte[] green = new byte[rgbs.length]; byte[] blue = new byte[rgbs.length]; for (int i = 0; i < rgbs.length; i++) { RGB rgb = rgbs[i]; red[i] = (byte) rgb.red; green[i] = (byte) rgb.green; blue[i] = (byte) rgb.blue; } if (data.transparentPixel != -1) { colorModel = new IndexColorModel(data.depth, rgbs.length, red, green, blue, data.transparentPixel); } else { colorModel = new IndexColorModel(data.depth, rgbs.length, red, green, blue); } BufferedImage bufferedImage = new BufferedImage(colorModel, colorModel.createCompatibleWritableRaster(data.width, data.height), false, null); WritableRaster raster = bufferedImage.getRaster(); int[] pixelArray = new int[1]; for (int y = 0; y < data.height; y++) { for (int x = 0; x < data.width; x++) { int pixel = data.getPixel(x, y); pixelArray[0] = pixel; raster.setPixel(x, y, pixelArray); } } return bufferedImage; } }
From source file:net.d53dev.dslfy.web.service.GifService.java
public BufferedImage convertRGBAToGIF(BufferedImage src, int transColor) { BufferedImage dst = new BufferedImage(src.getWidth(), src.getHeight(), BufferedImage.TYPE_BYTE_INDEXED); Graphics g = dst.getGraphics(); g.setColor(new Color(transColor)); g.fillRect(0, 0, dst.getWidth(), dst.getHeight()); {//from w w w . j a v a 2s .c o m IndexColorModel indexedModel = (IndexColorModel) dst.getColorModel(); WritableRaster raster = dst.getRaster(); int sample = raster.getSample(0, 0, 0); int size = indexedModel.getMapSize(); byte[] rr = new byte[size]; byte[] gg = new byte[size]; byte[] bb = new byte[size]; indexedModel.getReds(rr); indexedModel.getGreens(gg); indexedModel.getBlues(bb); IndexColorModel newModel = new IndexColorModel(8, size, rr, gg, bb, sample); dst = new BufferedImage(newModel, raster, dst.isAlphaPremultiplied(), null); } dst.createGraphics().drawImage(src, 0, 0, null); return dst; }
From source file:at.gv.egiz.pdfas.common.utils.ImageUtils.java
public static BufferedImage makeTransparent(BufferedImage image, int x, int y) { ColorModel cm = image.getColorModel(); if (!(cm instanceof IndexColorModel)) return image; // sorry... IndexColorModel icm = (IndexColorModel) cm; WritableRaster raster = image.getRaster(); int pixel = raster.getSample(x, y, 0); // pixel is offset in ICM's // palette/*w ww. j av a 2 s . c o m*/ int size = icm.getMapSize(); byte[] reds = new byte[size]; byte[] greens = new byte[size]; byte[] blues = new byte[size]; icm.getReds(reds); icm.getGreens(greens); icm.getBlues(blues); IndexColorModel icm2 = new IndexColorModel(8, size, reds, greens, blues, pixel); return new BufferedImage(icm2, raster, image.isAlphaPremultiplied(), null); }
From source file:de.fhg.igd.swingrcp.SwingRCPUtilities.java
/** * Convert a SWT Image to a {@link BufferedImage} * /* w w w .java 2 s . c om*/ * {@link "http://dev.eclipse.org/viewcvs/index.cgi/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet156.java?view=co"} * * @param data the SWT {@link ImageData} * @param applyAlphaMask true if the image data's alpha mask should be * applied to the result image (if there is any). This method * calls {@link #applyTransparencyMask(BufferedImage, ImageData)} * for that purpose. * @return the AWT {@link BufferedImage} */ public static BufferedImage convertToAWT(ImageData data, boolean applyAlphaMask) { ColorModel colorModel = null; PaletteData palette = data.palette; BufferedImage result; if (palette.isDirect) { colorModel = new DirectColorModel(data.depth, palette.redMask, palette.greenMask, palette.blueMask); BufferedImage bufferedImage = new BufferedImage(colorModel, colorModel.createCompatibleWritableRaster(data.width, data.height), false, null); for (int y = 0; y < data.height; y++) { for (int x = 0; x < data.width; x++) { int pixel = data.getPixel(x, y); RGB rgb = palette.getRGB(pixel); bufferedImage.setRGB(x, y, rgb.red << 16 | rgb.green << 8 | rgb.blue); } } result = bufferedImage; } else { RGB[] rgbs = palette.getRGBs(); byte[] red = new byte[rgbs.length]; byte[] green = new byte[rgbs.length]; byte[] blue = new byte[rgbs.length]; for (int i = 0; i < rgbs.length; i++) { RGB rgb = rgbs[i]; red[i] = (byte) rgb.red; green[i] = (byte) rgb.green; blue[i] = (byte) rgb.blue; } if (data.transparentPixel != -1) { colorModel = new IndexColorModel(data.depth, rgbs.length, red, green, blue, data.transparentPixel); } else { colorModel = new IndexColorModel(data.depth, rgbs.length, red, green, blue); } BufferedImage bufferedImage = new BufferedImage(colorModel, colorModel.createCompatibleWritableRaster(data.width, data.height), false, null); WritableRaster raster = bufferedImage.getRaster(); int[] pixelArray = new int[1]; for (int y = 0; y < data.height; y++) { for (int x = 0; x < data.width; x++) { int pixel = data.getPixel(x, y); pixelArray[0] = pixel; raster.setPixel(x, y, pixelArray); } } result = bufferedImage; } if (data.getTransparencyType() == SWT.TRANSPARENCY_MASK && applyAlphaMask) { result = applyTransparencyMask(result, data.getTransparencyMask()); } return result; }
From source file:org.csa.rstb.dat.toolviews.HaAlphaPlotPanel.java
private void initColorModels() { for (int j = 0; j <= 1; j++) { final int palSize = 256; final byte[] r = new byte[palSize]; final byte[] g = new byte[palSize]; final byte[] b = new byte[palSize]; final byte[] a = new byte[palSize]; r[0] = (byte) backgroundColor.getRed(); g[0] = (byte) backgroundColor.getGreen(); b[0] = (byte) backgroundColor.getBlue(); a[0] = (byte) backgroundColor.getAlpha(); final Palette pal = new Palette("Rainbow", new Color[] { Color.black, Color.blue, Color.cyan, Color.green, Color.yellow, Color.orange, Color.red }); for (int i = 1; i < 256; ++i) { float value = i / 255f; if (j == 0) value = (255 - i) / 255f; Color c = pal.lookupColor(value); r[i] = (byte) c.getRed(); g[i] = (byte) c.getGreen(); b[i] = (byte) c.getBlue(); a[i] = (byte) 255; }//from www .ja va 2 s . c om if (j == 0) { toggledColorModel = new IndexColorModel(8, palSize, r, g, b, a); } else { untoggledColorModel = new IndexColorModel(8, palSize, r, g, b, a); } } }
From source file:org.esa.beam.visat.toolviews.stat.DensityPlotPanel.java
private void initColorModels() { for (int j = 0; j <= 1; j++) { final int palSize = 256; final byte[] r = new byte[palSize]; final byte[] g = new byte[palSize]; final byte[] b = new byte[palSize]; final byte[] a = new byte[palSize]; r[0] = (byte) backgroundColor.getRed(); g[0] = (byte) backgroundColor.getGreen(); b[0] = (byte) backgroundColor.getBlue(); a[0] = (byte) backgroundColor.getAlpha(); for (int i = 1; i < 128; i++) { if (j == 0) { r[i] = (byte) (2 * i); g[i] = (byte) 0; } else { r[i] = (byte) 255; g[i] = (byte) (255 - (2 * (i - 128))); }//from w w w.j ava 2 s. com b[i] = (byte) 0; a[i] = (byte) 255; } for (int i = 128; i < 256; i++) { if (j == 0) { r[i] = (byte) 255; g[i] = (byte) (2 * (i - 128)); } else { r[i] = (byte) (255 - (2 * i)); g[i] = (byte) 0; } b[i] = (byte) 0; a[i] = (byte) 255; } if (j == 0) { toggledColorModel = new IndexColorModel(8, palSize, r, g, b, a); } else { untoggledColorModel = new IndexColorModel(8, palSize, r, g, b, a); } } }
From source file:org.apache.pdfbox.pdmodel.graphics.xobject.PDInlinedImage.java
/** * This will take the inlined image information and create a java.awt.Image from * it./*from w ww . ja v a2 s . co m*/ * * @param colorSpaces The ColorSpace dictionary from the current resources, if any. * * @return The image that this object represents. * * @throws IOException If there is an error creating the image. */ public BufferedImage createImage(Map colorSpaces) throws IOException { /* * This was the previous implementation, not sure which is better right now. * byte[] transparentColors = new byte[]{(byte)0xFF,(byte)0xFF}; byte[] colors=new byte[]{0, (byte)0xFF}; IndexColorModel colorModel = new IndexColorModel( 1, 2, colors, colors, colors, transparentColors ); BufferedImage image = new BufferedImage( params.getWidth(), params.getHeight(), BufferedImage.TYPE_BYTE_BINARY, colorModel ); DataBufferByte buffer = new DataBufferByte( getImageData(), 1 ); WritableRaster raster = Raster.createPackedRaster( buffer, params.getWidth(), params.getHeight(), params.getBitsPerComponent(), new Point(0,0) ); image.setData( raster ); return image; */ //verify again pci32.pdf before changing below PDColorSpace pcs = params.getColorSpace(colorSpaces); ColorModel colorModel; if (pcs != null) { colorModel = pcs.createColorModel(params.getBitsPerComponent()); } else { byte[] transparentColors = new byte[] { (byte) 0xFF, (byte) 0xFF }; byte[] colors = new byte[] { 0, (byte) 0xFF }; colorModel = new IndexColorModel(1, 2, colors, colors, colors, transparentColors); } boolean invert = false; // maybe a decode array is defined COSBase dictObj = params.getDictionary().getDictionaryObject(COSName.DECODE, COSName.D); if (dictObj != null && dictObj instanceof COSArray) { COSArray decode = (COSArray) dictObj; if (decode.getInt(0) == 1) { if (params.getBitsPerComponent() == 1) { // [1.0, 0.0] -> invert the "color" values invert = true; } else { //TODO implement decode array for BPC > 1 LOG.warn("decode array is not implemented for BPC > 1"); } } } List filters = params.getFilters(); byte[] finalData; if (filters == null || filters.isEmpty()) { finalData = getImageData(); } else { ByteArrayInputStream in = new ByteArrayInputStream(getImageData()); ByteArrayOutputStream out = new ByteArrayOutputStream(getImageData().length); FilterManager filterManager = new FilterManager(); for (int i = 0; i < filters.size(); i++) { out.reset(); Filter filter = filterManager.getFilter((String) filters.get(i)); filter.decode(in, out, params.getDictionary(), i); in = new ByteArrayInputStream(out.toByteArray()); } finalData = out.toByteArray(); } WritableRaster raster = colorModel.createCompatibleWritableRaster(params.getWidth(), params.getHeight()); /* Raster.createPackedRaster( buffer, params.getWidth(), params.getHeight(), params.getBitsPerComponent(), new Point(0,0) ); */ DataBuffer rasterBuffer = raster.getDataBuffer(); if (rasterBuffer instanceof DataBufferByte) { DataBufferByte byteBuffer = (DataBufferByte) rasterBuffer; byte[] data = byteBuffer.getData(); System.arraycopy(finalData, 0, data, 0, data.length); if (invert) { invertBitmap(data); } } else if (rasterBuffer instanceof DataBufferInt) { DataBufferInt byteBuffer = (DataBufferInt) rasterBuffer; int[] data = byteBuffer.getData(); for (int i = 0; i < finalData.length; i++) { data[i] = (finalData[i] + 256) % 256; if (invert) { data[i] = (~data[i] & 0xFF); } } } BufferedImage image = new BufferedImage(colorModel, raster, false, null); image.setData(raster); return image; }
From source file:org.apache.pdfbox.pdmodel.graphics.xobject.PDPixelMap.java
/** * Returns a {@link java.awt.image.BufferedImage} of the COSStream * set in the constructor or null if the COSStream could not be encoded. * * @return {@inheritDoc}//from w ww .j av a 2 s . co m * * @throws IOException {@inheritDoc} */ public BufferedImage getRGBImage() throws IOException { if (image != null) { return image; } try { int width = getWidth(); int height = getHeight(); int bpc = getBitsPerComponent(); byte[] array = getPDStream().getByteArray(); if (array.length == 0) { LOG.error("Something went wrong ... the pixelmap doesn't contain any data."); return null; } // Get the ColorModel right PDColorSpace colorspace = getColorSpace(); if (colorspace == null) { LOG.error("getColorSpace() returned NULL. Predictor = " + getPredictor()); return null; } ColorModel cm = null; if (colorspace instanceof PDIndexed) { PDIndexed csIndexed = (PDIndexed) colorspace; // the base color space uses 8 bit per component, as the indexed color values // of an indexed color space are always in a range from 0 to 255 ColorModel baseColorModel = csIndexed.getBaseColorSpace().createColorModel(8); // number of possible color values in the target color space int numberOfColorValues = 1 << bpc; // number of indexed color values int highValue = csIndexed.getHighValue(); // choose the correct size, sometimes there are more indexed values than needed // and sometimes there are fewer indexed value than possible int size = Math.min(numberOfColorValues - 1, highValue); byte[] index = csIndexed.getLookupData(); boolean hasAlpha = baseColorModel.hasAlpha(); COSBase maskArray = getMask(); if (baseColorModel.getTransferType() != DataBuffer.TYPE_BYTE) { throw new IOException("Not implemented"); } // the IndexColorModel uses RGB-based color values // which leads to 3 color components and a optional alpha channel int numberOfComponents = 3 + (hasAlpha ? 1 : 0); int buffersize = (size + 1) * numberOfComponents; byte[] colorValues = new byte[buffersize]; byte[] inData = new byte[baseColorModel.getNumComponents()]; int bufferIndex = 0; for (int i = 0; i <= size; i++) { System.arraycopy(index, i * inData.length, inData, 0, inData.length); // convert the indexed color values to RGB colorValues[bufferIndex] = (byte) baseColorModel.getRed(inData); colorValues[bufferIndex + 1] = (byte) baseColorModel.getGreen(inData); colorValues[bufferIndex + 2] = (byte) baseColorModel.getBlue(inData); if (hasAlpha) { colorValues[bufferIndex + 3] = (byte) baseColorModel.getAlpha(inData); } bufferIndex += numberOfComponents; } if (maskArray != null && maskArray instanceof COSArray) { cm = new IndexColorModel(bpc, size + 1, colorValues, 0, hasAlpha, ((COSArray) maskArray).getInt(0)); } else { cm = new IndexColorModel(bpc, size + 1, colorValues, 0, hasAlpha); } } else if (colorspace instanceof PDSeparation) { PDSeparation csSeparation = (PDSeparation) colorspace; int numberOfComponents = csSeparation.getAlternateColorSpace().getNumberOfComponents(); PDFunction tintTransformFunc = csSeparation.getTintTransform(); COSArray decode = getDecode(); // we have to invert the tint-values, // if the Decode array exists and consists of (1,0) boolean invert = decode != null && decode.getInt(0) == 1; // TODO add interpolation for other decode values then 1,0 int maxValue = (int) Math.pow(2, bpc) - 1; // destination array byte[] mappedData = new byte[width * height * numberOfComponents]; int rowLength = width * numberOfComponents; float[] input = new float[1]; for (int i = 0; i < height; i++) { int rowOffset = i * rowLength; for (int j = 0; j < width; j++) { // scale tint values to a range of 0...1 int value = (array[i * width + j] + 256) % 256; if (invert) { input[0] = 1 - (value / maxValue); } else { input[0] = value / maxValue; } float[] mappedColor = tintTransformFunc.eval(input); int columnOffset = j * numberOfComponents; for (int k = 0; k < numberOfComponents; k++) { // redo scaling for every single color value float mappedValue = mappedColor[k]; mappedData[rowOffset + columnOffset + k] = (byte) (mappedValue * maxValue); } } } array = mappedData; cm = colorspace.createColorModel(bpc); } else if (bpc == 1) { byte[] map = null; if (colorspace instanceof PDDeviceGray) { COSArray decode = getDecode(); // we have to invert the b/w-values, // if the Decode array exists and consists of (1,0) if (decode != null && decode.getInt(0) == 1) { map = new byte[] { (byte) 0xff }; } else { map = new byte[] { (byte) 0x00, (byte) 0xff }; } } else if (colorspace instanceof PDICCBased) { if (((PDICCBased) colorspace).getNumberOfComponents() == 1) { map = new byte[] { (byte) 0xff }; } else { map = new byte[] { (byte) 0x00, (byte) 0xff }; } } else { map = new byte[] { (byte) 0x00, (byte) 0xff }; } cm = new IndexColorModel(bpc, map.length, map, map, map, Transparency.OPAQUE); } else { if (colorspace instanceof PDICCBased) { if (((PDICCBased) colorspace).getNumberOfComponents() == 1) { byte[] map = new byte[] { (byte) 0xff }; cm = new IndexColorModel(bpc, 1, map, map, map, Transparency.OPAQUE); } else { cm = colorspace.createColorModel(bpc); } } else { cm = colorspace.createColorModel(bpc); } } LOG.debug("ColorModel: " + cm.toString()); WritableRaster raster = cm.createCompatibleWritableRaster(width, height); DataBufferByte buffer = (DataBufferByte) raster.getDataBuffer(); byte[] bufferData = buffer.getData(); System.arraycopy(array, 0, bufferData, 0, (array.length < bufferData.length ? array.length : bufferData.length)); image = new BufferedImage(cm, raster, false, null); // If there is a 'soft mask' image then we use that as a transparency mask. PDXObjectImage smask = getSMaskImage(); if (smask != null) { BufferedImage smaskBI = smask.getRGBImage(); COSArray decodeArray = smask.getDecode(); CompositeImage compositeImage = new CompositeImage(image, smaskBI); BufferedImage rgbImage = compositeImage.createMaskedImage(decodeArray); return rgbImage; } else if (getImageMask()) { BufferedImage stencilMask = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB); Graphics2D graphics = (Graphics2D) stencilMask.getGraphics(); if (getStencilColor() != null) { graphics.setColor(getStencilColor().getJavaColor()); } else { // this might happen when using ExractImages, see PDFBOX-1145 LOG.debug("no stencil color for PixelMap found, using Color.BLACK instead."); graphics.setColor(Color.BLACK); } graphics.fillRect(0, 0, width, height); // assume default values ([0,1]) for the DecodeArray // TODO DecodeArray == [1,0] graphics.setComposite(AlphaComposite.DstIn); graphics.drawImage(image, null, 0, 0); return stencilMask; } else { // if there is no mask, use the unaltered image. return image; } } catch (Exception exception) { LOG.error(exception, exception); //A NULL return is caught in pagedrawer.Invoke.process() so don't re-throw. //Returning the NULL falls through to Phillip Koch's TODO section. return null; } }
From source file:org.apache.xmlgraphics.image.codec.png.PNGImageDecoder.java
private void parse_IEND_chunk(final PNGChunk chunk) { // Store text strings final int textLen = this.textKeys.size(); final String[] textArray = new String[2 * textLen]; for (int i = 0; i < textLen; ++i) { final String key = this.textKeys.get(i); final String val = this.textStrings.get(i); textArray[2 * i] = key;//from ww w . jav a2s . c o m textArray[2 * i + 1] = val; if (this.emitProperties) { final String uniqueKey = "text_" + i + ':' + key; this.properties.put(uniqueKey.toLowerCase(), val); } } if (this.encodeParam != null) { this.encodeParam.setText(textArray); } // Store compressed text strings final int ztextLen = this.ztextKeys.size(); final String[] ztextArray = new String[2 * ztextLen]; for (int i = 0; i < ztextLen; ++i) { final String key = this.ztextKeys.get(i); final String val = this.ztextStrings.get(i); ztextArray[2 * i] = key; ztextArray[2 * i + 1] = val; if (this.emitProperties) { final String uniqueKey = "ztext_" + i + ':' + key; this.properties.put(uniqueKey.toLowerCase(), val); } } if (this.encodeParam != null) { this.encodeParam.setCompressedText(ztextArray); } // Parse prior IDAT chunks final InputStream seqStream = new SequenceInputStream(Collections.enumeration(this.streamVec)); final InputStream infStream = new InflaterInputStream(seqStream, new Inflater()); this.dataStream = new DataInputStream(infStream); // Create an empty WritableRaster int depth = this.bitDepth; if (this.colorType == PNG_COLOR_GRAY && this.bitDepth < 8 && this.output8BitGray) { depth = 8; } if (this.colorType == PNG_COLOR_PALETTE && this.expandPalette) { depth = 8; } final int bytesPerRow = (this.outputBands * this.width * depth + 7) / 8; final int scanlineStride = depth == 16 ? bytesPerRow / 2 : bytesPerRow; this.theTile = createRaster(this.width, this.height, this.outputBands, scanlineStride, depth); if (this.performGammaCorrection && this.gammaLut == null) { initGammaLut(this.bitDepth); } if (this.postProcess == POST_GRAY_LUT || this.postProcess == POST_GRAY_LUT_ADD_TRANS || this.postProcess == POST_GRAY_LUT_ADD_TRANS_EXP) { initGrayLut(this.bitDepth); } decodeImage(this.interlaceMethod == 1); this.sampleModel = this.theTile.getSampleModel(); if (this.colorType == PNG_COLOR_PALETTE && !this.expandPalette) { if (this.outputHasAlphaPalette) { this.colorModel = new IndexColorModel(this.bitDepth, this.paletteEntries, this.redPalette, this.greenPalette, this.bluePalette, this.alphaPalette); } else { this.colorModel = new IndexColorModel(this.bitDepth, this.paletteEntries, this.redPalette, this.greenPalette, this.bluePalette); } } else if (this.colorType == PNG_COLOR_GRAY && this.bitDepth < 8 && !this.output8BitGray) { final byte[] palette = this.expandBits[this.bitDepth]; this.colorModel = new IndexColorModel(this.bitDepth, palette.length, palette, palette, palette); } else { this.colorModel = createComponentColorModel(this.sampleModel); } }