List of usage examples for java.awt.image DataBuffer TYPE_BYTE
int TYPE_BYTE
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From source file:nitf.imageio.NITFReader.java
@Override public Raster readRaster(int imageIndex, ImageReadParam param) throws IOException { checkIndex(imageIndex);//from w w w . j a va2s . c o m Rectangle sourceRegion = new Rectangle(); Rectangle destRegion = new Rectangle(); computeRegions(param, getWidth(imageIndex), getHeight(imageIndex), null, sourceRegion, destRegion); // Set everything to default values int sourceXSubsampling = param != null ? param.getSourceXSubsampling() : 1; int sourceYSubsampling = param != null ? param.getSourceYSubsampling() : 1; Point destinationOffset = param != null ? param.getDestinationOffset() : new Point(0, 0); ImageSubheader subheader; try { subheader = record.getImages()[imageIndex].getSubheader(); } catch (NITFException e) { throw new IOException(ExceptionUtils.getStackTrace(e)); } String irep = subheader.getImageRepresentation().getStringData().trim(); String pvType = subheader.getPixelValueType().getStringData().trim(); int nbpp = subheader.getNumBitsPerPixel().getIntData(); int bandCount = subheader.getBandCount(); // make the band offsets array, for the output int[] bandOffsets = null; int[] sourceBands = param != null ? param.getSourceBands() : null; if (param != null && param.getDestinationBands() != null) bandOffsets = param.getDestinationBands(); else if (param != null && sourceBands != null) { bandOffsets = new int[sourceBands.length]; for (int i = 0; i < bandOffsets.length; i++) bandOffsets[i] = sourceBands[i]; } else { // Setup band offsets -- TODO should we really read ALL bands by // default? bandOffsets = new int[bandCount]; for (int i = 0; i < bandOffsets.length; i++) bandOffsets[i] = i; } int nBytes = ((nbpp - 1) / 8) + 1; int bufType = -1; // byte if (nBytes == 1) { bufType = DataBuffer.TYPE_BYTE; } // short else if (nBytes == 2) { bufType = DataBuffer.TYPE_USHORT; } // float else if (nBytes == 4 && pvType.equals("R")) { bufType = DataBuffer.TYPE_FLOAT; } // double else if (nBytes == 8 && pvType.equals("R")) { bufType = DataBuffer.TYPE_DOUBLE; } else { throw new NotImplementedException("not yet implemented"); } WritableRaster ras = ImageIOUtils.makeGenericPixelInterleavedWritableRaster(destRegion.width, destRegion.height, bandOffsets.length, bufType); checkReadParamBandSettings(param, bandCount, ras.getSampleModel().getNumBands()); readRaster(imageIndex, sourceRegion, destRegion, sourceXSubsampling, sourceYSubsampling, bandOffsets, nBytes, destinationOffset, ras); return ras; }
From source file:ImageComponentByReferenceTest.java
TiledImage() {
ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
int[] nBits = { 8, 8, 8, 8 };
int i, j, k, cc = 255;
int[] bandOffset = new int[4];
colorModel = new ComponentColorModel(cs, nBits, true, false, Transparency.OPAQUE, 0);
// Create 9 tiles
bandOffset[0] = 3;//from w w w. ja v a 2 s . c om
bandOffset[1] = 2;
bandOffset[2] = 1;
bandOffset[3] = 0;
for (i = 0; i < 3; i++) {
for (j = 0; j < 3; j++) {
tile[i][j] = Raster.createInterleavedRaster(DataBuffer.TYPE_BYTE, 8, 8, 32, 4, bandOffset, null);
}
}
// tile {-2, -1}
byte[] byteData = ((DataBufferByte) tile[0][0].getDataBuffer()).getData();
for (i = 4, k = 8 * 4 * 4 + 4 * 4; i < 8; i++, k += 16) {
for (j = 4; j < 8; j++, k += 4) {
byteData[k] = (byte) 0;
byteData[k + 1] = (byte) cc;
byteData[k + 2] = (byte) 0;
byteData[k + 3] = (byte) cc;
}
}
// tile {-1, -1}
byteData = ((DataBufferByte) tile[1][0].getDataBuffer()).getData();
for (i = 4, k = 8 * 4 * 4; i < 8; i++) {
for (j = 4; j < 8; j++, k += 4) {
byteData[k] = (byte) 0;
byteData[k + 1] = (byte) cc;
byteData[k + 2] = (byte) 0;
byteData[k + 3] = (byte) cc;
}
for (j = 4; j < 8; j++, k += 4) {
byteData[k] = (byte) 0;
byteData[k + 1] = (byte) 0;
byteData[k + 2] = (byte) 0;
byteData[k + 3] = (byte) cc;
}
}
// tile {1, -1}
byteData = ((DataBufferByte) tile[2][0].getDataBuffer()).getData();
for (i = 4, k = 8 * 4 * 4; i < 8; i++, k += 16) {
for (j = 0; j < 4; j++, k += 4) {
byteData[k] = (byte) 0;
byteData[k + 1] = (byte) 0;
byteData[k + 2] = (byte) 0;
byteData[k + 3] = (byte) cc;
}
}
// tile {-2, 0}
byteData = ((DataBufferByte) tile[0][1].getDataBuffer()).getData();
for (i = 0, k = 16; i < 4; i++, k += 16) {
for (j = 4; j < 8; j++, k += 4) {
byteData[k] = (byte) 0;
byteData[k + 1] = (byte) cc;
byteData[k + 2] = (byte) 0;
byteData[k + 3] = (byte) cc;
}
}
for (i = 4, k = 8 * 4 * 4 + 16; i < 8; i++, k += 16) {
for (j = 4; j < 8; j++, k += 4) {
byteData[k] = (byte) 0;
byteData[k + 1] = (byte) 0;
byteData[k + 2] = (byte) cc;
byteData[k + 3] = (byte) 0;
}
}
// tile {-1, 0}
byteData = ((DataBufferByte) tile[1][1].getDataBuffer()).getData();
for (i = 0, k = 0; i < 4; i++) {
for (j = 4; j < 8; j++, k += 4) {
byteData[k] = (byte) 0;
byteData[k + 1] = (byte) cc;
byteData[k + 2] = (byte) 0;
byteData[k + 3] = (byte) cc;
}
for (j = 4; j < 8; j++, k += 4) {
byteData[k] = (byte) 0;
byteData[k + 1] = (byte) 0;
byteData[k + 2] = (byte) 0;
byteData[k + 3] = (byte) cc;
}
}
for (i = 0, k = 8 * 4 * 4; i < 4; i++) {
for (j = 4; j < 8; j++, k += 4) {
byteData[k] = (byte) 0;
byteData[k + 1] = (byte) 0;
byteData[k + 2] = (byte) cc;
byteData[k + 3] = (byte) 0;
}
for (j = 4; j < 8; j++, k += 4) {
byteData[k] = (byte) 0;
byteData[k + 1] = (byte) 0;
byteData[k + 2] = (byte) cc;
byteData[k + 3] = (byte) cc;
}
}
// tile {0, 0}
byteData = ((DataBufferByte) tile[2][1].getDataBuffer()).getData();
for (i = 0, k = 0; i < 4; i++, k += 16) {
for (j = 4; j < 8; j++, k += 4) {
byteData[k] = (byte) 0;
byteData[k + 1] = (byte) 0;
byteData[k + 2] = (byte) 0;
byteData[k + 3] = (byte) cc;
}
}
for (i = 4, k = 8 * 4 * 4; i < 8; i++, k += 16) {
for (j = 4; j < 8; j++, k += 4) {
byteData[k] = (byte) 0;
byteData[k + 1] = (byte) 0;
byteData[k + 2] = (byte) cc;
byteData[k + 3] = (byte) cc;
}
}
// tile {-2, 1}
byteData = ((DataBufferByte) tile[0][2].getDataBuffer()).getData();
for (i = 4, k = 16; i < 8; i++, k += 16) {
for (j = 4; j < 8; j++, k += 4) {
byteData[k] = (byte) 0;
byteData[k + 1] = (byte) 0;
byteData[k + 2] = (byte) cc;
byteData[k + 3] = (byte) 0;
}
}
// tile {-1, 1}
byteData = ((DataBufferByte) tile[1][2].getDataBuffer()).getData();
for (i = 0, k = 0; i < 8; i++) {
for (j = 4; j < 8; j++, k += 4) {
byteData[k] = (byte) 0;
byteData[k + 1] = (byte) 0;
byteData[k + 2] = (byte) cc;
byteData[k + 3] = (byte) 0;
}
for (j = 4; j < 8; j++, k += 4) {
byteData[k] = (byte) 0;
byteData[k + 1] = (byte) 0;
byteData[k + 2] = (byte) cc;
byteData[k + 3] = (byte) cc;
}
}
// tile {0, 1}
byteData = ((DataBufferByte) tile[2][2].getDataBuffer()).getData();
for (i = 4, k = 0; i < 8; i++, k += 16) {
for (j = 4; j < 8; j++, k += 4) {
byteData[k] = (byte) 0;
byteData[k + 1] = (byte) 0;
byteData[k + 2] = (byte) cc;
byteData[k + 3] = (byte) cc;
}
}
bigTile = Raster.createInterleavedRaster(DataBuffer.TYPE_BYTE, 16, 16, 64, 4, bandOffset, null);
;
byteData = ((DataBufferByte) bigTile.getDataBuffer()).getData();
for (i = 0, k = 0; i < 8; i++) {
for (j = 0; j < 8; j++, k += 4) {
byteData[k] = (byte) 0;
byteData[k + 1] = (byte) cc;
byteData[k + 2] = (byte) 0;
byteData[k + 3] = (byte) cc;
}
for (; j < 16; j++, k += 4) {
byteData[k] = (byte) 0;
byteData[k + 1] = (byte) 0;
byteData[k + 2] = (byte) 0;
byteData[k + 3] = (byte) cc;
}
}
for (; i < 16; i++) {
for (j = 0; j < 8; j++, k += 4) {
byteData[k] = (byte) 0;
byteData[k + 1] = (byte) 0;
byteData[k + 2] = (byte) cc;
byteData[k + 3] = (byte) 0;
}
for (; j < 16; j++, k += 4) {
byteData[k] = (byte) 0;
byteData[k + 1] = (byte) 0;
byteData[k + 2] = (byte) cc;
byteData[k + 3] = (byte) cc;
}
}
checkBoard = new BufferedImage(colorModel, bigTile, false, null);
}
From source file:it.geosolutions.imageio.plugins.nitronitf.ImageIOUtils.java
/** * Returns a generic pixel interleaved WritableRaster * //from ww w . ja v a 2s . c o m * @param numElems * @param numLines * @param bandOffsets * @param dataType * @return */ public static WritableRaster makeGenericPixelInterleavedWritableRaster(int numElems, int numLines, int numBands, int dataType) { int[] bandOffsets = new int[numBands]; for (int i = 0; i < numBands; ++i) bandOffsets[i] = i; DataBuffer d = null; if (dataType == DataBuffer.TYPE_BYTE) d = new DataBufferByte(numElems * numLines * numBands); else if (dataType == DataBuffer.TYPE_SHORT) d = new DataBufferShort(numElems * numLines * numBands); else if (dataType == DataBuffer.TYPE_USHORT) d = new DataBufferUShort(numElems * numLines * numBands); else if (dataType == DataBuffer.TYPE_FLOAT) d = new DataBufferFloat(numElems * numLines * numBands); else if (dataType == DataBuffer.TYPE_DOUBLE) d = new DataBufferDouble(numElems * numLines * numBands); else throw new IllegalArgumentException("Invalid datatype: " + dataType); PixelInterleavedSampleModel pism = new PixelInterleavedSampleModel(dataType, numElems, numLines, bandOffsets.length, numElems * bandOffsets.length, bandOffsets); SunWritableRaster ras = new SunWritableRaster(pism, d, new Point(0, 0)); return ras; }
From source file:org.mrgeo.data.raster.RasterWritable.java
private static Raster read(final byte[] rasterBytes, Writable payload) throws IOException { WritableRaster raster;//w ww . j a v a2 s .co m final ByteBuffer rasterBuffer = ByteBuffer.wrap(rasterBytes); @SuppressWarnings("unused") final int headersize = rasterBuffer.getInt(); // this isn't really used anymore... final int height = rasterBuffer.getInt(); final int width = rasterBuffer.getInt(); final int bands = rasterBuffer.getInt(); final int datatype = rasterBuffer.getInt(); final SampleModelType sampleModelType = SampleModelType.values()[rasterBuffer.getInt()]; SampleModel model; switch (sampleModelType) { case BANDED: model = new BandedSampleModel(datatype, width, height, bands); break; case MULTIPIXELPACKED: throw new NotImplementedException("MultiPixelPackedSampleModel not implemented yet"); // model = new MultiPixelPackedSampleModel(dataType, w, h, numberOfBits) case PIXELINTERLEAVED: { final int pixelStride = rasterBuffer.getInt(); final int scanlineStride = rasterBuffer.getInt(); final int bandcnt = rasterBuffer.getInt(); final int[] bandOffsets = new int[bandcnt]; for (int i = 0; i < bandcnt; i++) { bandOffsets[i] = rasterBuffer.getInt(); } model = new PixelInterleavedSampleModel(datatype, width, height, pixelStride, scanlineStride, bandOffsets); break; } case SINGLEPIXELPACKED: throw new NotImplementedException("SinglePixelPackedSampleModel not implemented yet"); // model = new SinglePixelPackedSampleModel(dataType, w, h, bitMasks); case COMPONENT: { final int pixelStride = rasterBuffer.getInt(); final int scanlineStride = rasterBuffer.getInt(); final int bandcnt = rasterBuffer.getInt(); final int[] bandOffsets = new int[bandcnt]; for (int i = 0; i < bandcnt; i++) { bandOffsets[i] = rasterBuffer.getInt(); } model = new ComponentSampleModel(datatype, width, height, pixelStride, scanlineStride, bandOffsets); break; } default: throw new RasterWritableException("Unknown RasterSampleModel type"); } // include the header size param in the count int startdata = rasterBuffer.position(); // calculate the data size int[] samplesize = model.getSampleSize(); int samplebytes = 0; for (int ss : samplesize) { // bits to bytes samplebytes += (ss / 8); } int databytes = model.getHeight() * model.getWidth() * samplebytes; // final ByteBuffer rasterBuffer = ByteBuffer.wrap(rasterBytes, headerbytes, databytes); // the corner of the raster is always 0,0 raster = Raster.createWritableRaster(model, null); switch (datatype) { case DataBuffer.TYPE_BYTE: { // we can't use the byte buffer explicitly because the header info is // still in it... final byte[] bytedata = new byte[databytes]; rasterBuffer.get(bytedata); raster.setDataElements(0, 0, width, height, bytedata); break; } case DataBuffer.TYPE_FLOAT: { final FloatBuffer floatbuff = rasterBuffer.asFloatBuffer(); final float[] floatdata = new float[databytes / RasterUtils.FLOAT_BYTES]; floatbuff.get(floatdata); raster.setDataElements(0, 0, width, height, floatdata); break; } case DataBuffer.TYPE_DOUBLE: { final DoubleBuffer doublebuff = rasterBuffer.asDoubleBuffer(); final double[] doubledata = new double[databytes / RasterUtils.DOUBLE_BYTES]; doublebuff.get(doubledata); raster.setDataElements(0, 0, width, height, doubledata); break; } case DataBuffer.TYPE_INT: { final IntBuffer intbuff = rasterBuffer.asIntBuffer(); final int[] intdata = new int[databytes / RasterUtils.INT_BYTES]; intbuff.get(intdata); raster.setDataElements(0, 0, width, height, intdata); break; } case DataBuffer.TYPE_SHORT: case DataBuffer.TYPE_USHORT: { final ShortBuffer shortbuff = rasterBuffer.asShortBuffer(); final short[] shortdata = new short[databytes / RasterUtils.SHORT_BYTES]; shortbuff.get(shortdata); raster.setDataElements(0, 0, width, height, shortdata); break; } default: throw new RasterWritableException("Error trying to read raster. Bad raster data type"); } // should we even try to extract the payload? if (payload != null) { // test to see if this is a raster with a possible payload final int payloadStart = startdata + databytes; if (rasterBytes.length > payloadStart) { // extract the payload final ByteArrayInputStream bais = new ByteArrayInputStream(rasterBytes, payloadStart, rasterBytes.length - payloadStart); final DataInputStream dis = new DataInputStream(bais); payload.readFields(dis); } } return raster; }
From source file:org.mrgeo.image.MrsPyramidMetadata.java
public static int toTileType(final String tiletype) { if (tiletype.equals("Byte")) { return DataBuffer.TYPE_BYTE; }// w w w . ja v a 2 s.com if (tiletype.equals("Float")) { return DataBuffer.TYPE_FLOAT; } if (tiletype.equals("Double")) { return DataBuffer.TYPE_DOUBLE; } if (tiletype.equals("Int")) { return DataBuffer.TYPE_INT; } if (tiletype.equals("Short")) { return DataBuffer.TYPE_SHORT; } if (tiletype.equals("UShort")) { return DataBuffer.TYPE_USHORT; } return DataBuffer.TYPE_UNDEFINED; }
From source file:TrackerPanel.java
private void drawUserDepths(Graphics2D g2d) { // define an 8-bit RGB channel color model ColorModel colorModel = new ComponentColorModel(ColorSpace.getInstance(ColorSpace.CS_sRGB), new int[] { 8, 8, 8 }, false, false, ComponentColorModel.OPAQUE, DataBuffer.TYPE_BYTE); // fill the raster with the depth image bytes DataBufferByte dataBuffer = new DataBufferByte(imgbytes, imWidth * imHeight * 3); WritableRaster raster = Raster.createInterleavedRaster(dataBuffer, imWidth, imHeight, imWidth * 3, 3, new int[] { 0, 1, 2 }, null); // combine color model and raster to create a BufferedImage BufferedImage image = new BufferedImage(colorModel, raster, false, null); g2d.drawImage(image, 0, 0, null);/*from w w w .j a va2 s . co m*/ }
From source file:omr.jai.TestImage3.java
public static void print(PlanarImage pi) { // Show the image dimensions and coordinates. System.out.print("Image Dimensions: "); System.out.print(pi.getWidth() + "x" + pi.getHeight() + " pixels"); // Remember getMaxX and getMaxY return the coordinate of the next point! System.out.println(" (from " + pi.getMinX() + "," + pi.getMinY() + " to " + (pi.getMaxX() - 1) + "," + (pi.getMaxY() - 1) + ")"); if ((pi.getNumXTiles() != 1) || (pi.getNumYTiles() != 1)) { // Is it tiled? // Tiles number, dimensions and coordinates. System.out.print("Tiles: "); System.out.print(pi.getTileWidth() + "x" + pi.getTileHeight() + " pixels" + " (" + pi.getNumXTiles() + "x" + pi.getNumYTiles() + " tiles)"); System.out.print(" (from " + pi.getMinTileX() + "," + pi.getMinTileY() + " to " + pi.getMaxTileX() + "," + pi.getMaxTileY() + ")"); System.out.println(" offset: " + pi.getTileGridXOffset() + "," + pi.getTileGridXOffset()); }/*from w w w . ja v a 2 s. com*/ // Display info about the SampleModel of the image. SampleModel sm = pi.getSampleModel(); System.out.println("Number of bands: " + sm.getNumBands()); System.out.print("Data type: "); switch (sm.getDataType()) { case DataBuffer.TYPE_BYTE: System.out.println("byte"); break; case DataBuffer.TYPE_SHORT: System.out.println("short"); break; case DataBuffer.TYPE_USHORT: System.out.println("ushort"); break; case DataBuffer.TYPE_INT: System.out.println("int"); break; case DataBuffer.TYPE_FLOAT: System.out.println("float"); break; case DataBuffer.TYPE_DOUBLE: System.out.println("double"); break; case DataBuffer.TYPE_UNDEFINED: System.out.println("undefined"); break; } // Display info about the ColorModel of the image. ColorModel cm = pi.getColorModel(); if (cm != null) { System.out.println("Number of color components: " + cm.getNumComponents()); System.out.println("Bits per pixel: " + cm.getPixelSize()); System.out.print("Image Transparency: "); switch (cm.getTransparency()) { case Transparency.OPAQUE: System.out.println("opaque"); break; case Transparency.BITMASK: System.out.println("bitmask"); break; case Transparency.TRANSLUCENT: System.out.println("translucent"); break; } } else System.out.println("No color model."); }
From source file:org.photovault.imginfo.CreateCopyImageCommand.java
/** Helper function to save a rendered image to file @param instanceFile The file into which the image will be saved @param img Image that willb e saved/*from ww w .j ava 2 s . c o m*/ @param xmpData XPM metadata packet that should be saved with the image @throws PhotovaultException if saving does not succeed */ protected void saveImage(File instanceFile, RenderedImage img, byte[] xmpData) throws PhotovaultException { ImageOutputStream out = null; log.debug("Entry: saveImage, file = " + instanceFile.getAbsolutePath()); try { out = new FileImageOutputStream(instanceFile); } catch (IOException e) { log.error("Error writing image: " + e.getMessage()); throw new PhotovaultException(e.getMessage()); } if (img.getSampleModel().getSampleSize(0) == 16) { log.debug("16 bit image, converting to 8 bits"); double[] subtract = new double[1]; subtract[0] = 0; double[] divide = new double[1]; divide[0] = 1. / 256.; // Now we can rescale the pixels gray levels: ParameterBlock pbRescale = new ParameterBlock(); pbRescale.add(divide); pbRescale.add(subtract); pbRescale.addSource(img); PlanarImage outputImage = (PlanarImage) JAI.create("rescale", pbRescale, null); // Make sure it is a byte image - force conversion. ParameterBlock pbConvert = new ParameterBlock(); pbConvert.addSource(outputImage); pbConvert.add(DataBuffer.TYPE_BYTE); img = JAI.create("format", pbConvert); } IIOImage iioimg = new IIOImage(img, null, null); /* Not all encoders support metadata handling */ Iterator writers = ImageIO.getImageWritersByFormatName("jpeg"); ImageWriter imgwriter = null; while (writers.hasNext()) { imgwriter = (ImageWriter) writers.next(); if (imgwriter.getClass().getName().endsWith("JPEGImageEncoder")) { // Break on finding the core provider. break; } } if (imgwriter == null) { System.err.println("Cannot find core JPEG writer!"); } imgwriter.addIIOWriteWarningListener(new IIOWriteWarningListener() { public void warningOccurred(ImageWriter arg0, int arg1, String arg2) { log.warn("Warning from ImageWriter: " + arg2); } }); ImageWriteParam params = imgwriter.getDefaultWriteParam(); ImageTypeSpecifier its = ImageTypeSpecifier.createFromRenderedImage(img); IIOMetadata metadata = imgwriter.getDefaultImageMetadata(its, null); IIOMetadataNode metatop = (IIOMetadataNode) metadata.getAsTree("javax_imageio_jpeg_image_1.0"); NodeList markerSeqNodes = metatop.getElementsByTagName("markerSequence"); if (markerSeqNodes.getLength() > 0) { IIOMetadataNode xmpNode = new IIOMetadataNode("unknown"); xmpNode.setAttribute("MarkerTag", "225"); xmpNode.setUserObject(xmpData); markerSeqNodes.item(0).appendChild(xmpNode); } try { metadata.setFromTree("javax_imageio_jpeg_image_1.0", metatop); } catch (Exception e) { log.warn("error editing metadata: " + e.getMessage()); e.printStackTrace(); throw new PhotovaultException("error setting image metadata: \n" + e.getMessage()); } iioimg.setMetadata(metadata); try { imgwriter.setOutput(out); imgwriter.write(iioimg); } catch (IOException e) { log.warn("Exception while encoding" + e.getMessage()); throw new PhotovaultException( "Error writing instance " + instanceFile.getAbsolutePath() + ": " + e.getMessage()); } finally { try { out.close(); } catch (IOException e) { log.warn("Exception while closing file: " + e.getMessage()); imgwriter.dispose(); throw new PhotovaultException( "Error writing instance " + instanceFile.getAbsolutePath() + ": " + e.getMessage()); } imgwriter.dispose(); } log.debug("Exit: saveImage"); }
From source file:it.geosolutions.imageio.plugins.nitronitf.ImageIOUtils.java
/** * Utility method for creating a BufferedImage from a source raster Currently only Float->Byte and Byte->Byte are supported. Will throw an * {@link UnsupportedOperationException} if the conversion is not supported. * // ww w . ja v a 2s.co m * @param raster * @param imageType * @return */ public static BufferedImage rasterToBufferedImage(Raster raster, ImageTypeSpecifier imageType) { if (imageType == null) { if (raster.getDataBuffer().getDataType() == DataBuffer.TYPE_BYTE) imageType = ImageTypeSpecifier.createGrayscale(8, DataBuffer.TYPE_BYTE, false); else throw new IllegalArgumentException("unable to dynamically determine the imageType"); } // create a new buffered image, for display BufferedImage bufImage = imageType.createBufferedImage(raster.getWidth(), raster.getHeight()); if (raster.getDataBuffer().getDataType() == DataBuffer.TYPE_USHORT && bufImage.getRaster().getDataBuffer().getDataType() == DataBuffer.TYPE_BYTE) { // convert short pixels to bytes short[] shortData = ((DataBufferUShort) raster.getDataBuffer()).getData(); byte[] byteData = ((DataBufferByte) bufImage.getWritableTile(0, 0).getDataBuffer()).getData(); ImageIOUtils.shortToByteBuffer(shortData, byteData, 1, raster.getNumBands()); } else if (raster.getDataBuffer().getDataType() == DataBuffer.TYPE_FLOAT && bufImage.getRaster().getDataBuffer().getDataType() == DataBuffer.TYPE_BYTE) { // convert float pixels to bytes float[] floatData = ((DataBufferFloat) raster.getDataBuffer()).getData(); byte[] byteData = ((DataBufferByte) bufImage.getWritableTile(0, 0).getDataBuffer()).getData(); ImageIOUtils.floatToByteBuffer(floatData, byteData, 1, raster.getNumBands()); } else if (raster.getDataBuffer().getDataType() == DataBuffer.TYPE_DOUBLE && bufImage.getRaster().getDataBuffer().getDataType() == DataBuffer.TYPE_BYTE) { // convert double pixels to bytes double[] doubleData = ((DataBufferDouble) raster.getDataBuffer()).getData(); byte[] byteData = ((DataBufferByte) bufImage.getWritableTile(0, 0).getDataBuffer()).getData(); ImageIOUtils.doubleToByteBuffer(doubleData, byteData, 1, raster.getNumBands()); } else if ((raster.getDataBuffer().getDataType() == DataBuffer.TYPE_BYTE && bufImage.getRaster().getDataBuffer().getDataType() == DataBuffer.TYPE_BYTE) || (raster.getDataBuffer().getDataType() == DataBuffer.TYPE_USHORT && bufImage.getRaster().getDataBuffer().getDataType() == DataBuffer.TYPE_USHORT) || (raster.getDataBuffer().getDataType() == DataBuffer.TYPE_SHORT && bufImage.getRaster().getDataBuffer().getDataType() == DataBuffer.TYPE_SHORT)) { bufImage.setData(raster); } else { throw new UnsupportedOperationException( "Unable to convert raster type to bufferedImage type: " + raster.getDataBuffer().getDataType() + " ==> " + bufImage.getRaster().getDataBuffer().getDataType()); } return bufImage; }
From source file:org.hippoecm.frontend.plugins.gallery.imageutil.ImageUtils.java
/** * Converts image raster data to a JPEG with RGB color space. Only images with color space CMYK and YCCK are * converted, other images are left untouched. * * Rationale: Java's ImageIO can't process 4-component images and Java2D can't apply AffineTransformOp either, * so we have to convert raster data to a JPG with RGB color space. * * The technique used in this method is due to Mark Stephens, and free for any use. See * http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4799903 or * http://www.mail-archive.com/java2d-interest@capra.eng.sun.com/msg03247.html * * @param is the image data// ww w. j a v a2s . c o m * @param colorModel the color model of the image * @return the RGB version of the supplied image */ public static InputStream convertToRGB(InputStream is, ColorModel colorModel) throws IOException, UnsupportedImageException { if (colorModel != ColorModel.CMYK && colorModel != ColorModel.YCCK) { return is; } // Get an ImageReader. ImageInputStream input = ImageIO.createImageInputStream(is); try { Iterator<ImageReader> readers = ImageIO.getImageReaders(input); if (readers == null || !readers.hasNext()) { throw new UnsupportedImageException("No ImageReaders found"); } ImageReader reader = readers.next(); reader.setInput(input); Raster raster = reader.readRaster(0, reader.getDefaultReadParam()); int w = raster.getWidth(); int h = raster.getHeight(); byte[] rgb = new byte[w * h * 3]; switch (colorModel) { case YCCK: { float[] Y = raster.getSamples(0, 0, w, h, 0, (float[]) null); float[] Cb = raster.getSamples(0, 0, w, h, 1, (float[]) null); float[] Cr = raster.getSamples(0, 0, w, h, 2, (float[]) null); float[] K = raster.getSamples(0, 0, w, h, 3, (float[]) null); for (int i = 0, imax = Y.length, base = 0; i < imax; i++, base += 3) { float k = 220 - K[i], y = 255 - Y[i], cb = 255 - Cb[i], cr = 255 - Cr[i]; double val = y + 1.402 * (cr - 128) - k; val = (val - 128) * .65f + 128; rgb[base] = val < 0.0 ? (byte) 0 : val > 255.0 ? (byte) 0xff : (byte) (val + 0.5); val = y - 0.34414 * (cb - 128) - 0.71414 * (cr - 128) - k; val = (val - 128) * .65f + 128; rgb[base + 1] = val < 0.0 ? (byte) 0 : val > 255.0 ? (byte) 0xff : (byte) (val + 0.5); val = y + 1.772 * (cb - 128) - k; val = (val - 128) * .65f + 128; rgb[base + 2] = val < 0.0 ? (byte) 0 : val > 255.0 ? (byte) 0xff : (byte) (val + 0.5); } break; } case CMYK: { int[] C = raster.getSamples(0, 0, w, h, 0, (int[]) null); int[] M = raster.getSamples(0, 0, w, h, 1, (int[]) null); int[] Y = raster.getSamples(0, 0, w, h, 2, (int[]) null); int[] K = raster.getSamples(0, 0, w, h, 3, (int[]) null); for (int i = 0, imax = C.length, base = 0; i < imax; i++, base += 3) { int c = 255 - C[i]; int m = 255 - M[i]; int y = 255 - Y[i]; int k = 255 - K[i]; float kk = k / 255f; rgb[base] = (byte) (255 - Math.min(255f, c * kk + k)); rgb[base + 1] = (byte) (255 - Math.min(255f, m * kk + k)); rgb[base + 2] = (byte) (255 - Math.min(255f, y * kk + k)); } break; } } // from other image types we know InterleavedRaster's can be // manipulated by AffineTransformOp, so create one of those. raster = Raster.createInterleavedRaster(new DataBufferByte(rgb, rgb.length), w, h, w * 3, 3, new int[] { 0, 1, 2 }, null); ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB); java.awt.image.ColorModel cm = new ComponentColorModel(cs, false, true, Transparency.OPAQUE, DataBuffer.TYPE_BYTE); BufferedImage convertedImage = new BufferedImage(cm, (WritableRaster) raster, true, null); ByteArrayOutputStream os = new ByteArrayOutputStream(); ImageIO.write(convertedImage, "jpg", os); return new ByteArrayInputStream(os.toByteArray()); } finally { IOUtils.closeQuietly(is); if (input != null) { input.close(); } } }