List of usage examples for java.awt.image ColorModel getRGB
public int getRGB(Object inData)
From source file:com.googlecode.fightinglayoutbugs.helpers.ImageHelper.java
public static int[][] imageToPixels(BufferedImage image) { if (image == null) { return null; }// w w w . j a v a2 s. com int w = image.getWidth(); int h = image.getHeight(); int[][] pixels = new int[w][h]; Raster raster = image.getRaster(); if (raster.getTransferType() == DataBuffer.TYPE_BYTE) { byte[] bytes = (byte[]) raster.getDataElements(0, 0, w, h, null); int bytesPerPixel = (bytes.length / (w * h)); ColorModel colorModel = image.getColorModel(); byte[] buf = new byte[bytesPerPixel]; for (int x = 0; x < w; ++x) { for (int y = 0; y < h; ++y) { System.arraycopy(bytes, (x + y * w) * bytesPerPixel, buf, 0, bytesPerPixel); pixels[x][y] = colorModel.getRGB(buf) & 0xFFFFFF; } } return pixels; } else { throw new RuntimeException("transfer type " + raster.getTransferType() + " not implemented yet"); } }
From source file:com.googlecode.fightinglayoutbugs.helpers.ImageHelper.java
private static List<RectangularRegion> findSubImageInImage(BufferedImage subImage, BufferedImage image, int max) { Map<Integer, List<Point>> rgb2offsets = new HashMap<Integer, List<Point>>(); int sw = subImage.getWidth(); int sh = subImage.getHeight(); for (int x = 0; x < sw; ++x) { for (int y = 0; y < sh; ++y) { int argb = subImage.getRGB(x, y); int a = argb >>> 24; if (a == 255) { Integer rgb = argb & 0xFFFFFF; List<Point> offsets = rgb2offsets.get(rgb); if (offsets == null) { offsets = new ArrayList<Point>(); rgb2offsets.put(rgb, offsets); }//from w w w. ja v a 2s . co m offsets.add(new Point(x, y)); } } } List<RectangularRegion> result = new ArrayList<RectangularRegion>(); int w = image.getWidth(); int h = image.getHeight(); int[][] p = new int[w][h]; Raster raster = image.getRaster(); if (raster.getTransferType() == DataBuffer.TYPE_BYTE) { byte[] bytes = (byte[]) raster.getDataElements(0, 0, w, h, null); int bytesPerPixel = (bytes.length / (w * h)); ColorModel colorModel = image.getColorModel(); byte[] buf = new byte[bytesPerPixel]; for (int x = 0; x < w; ++x) { for (int y = 0; y < h; ++y) { System.arraycopy(bytes, (x + y * w) * bytesPerPixel, buf, 0, bytesPerPixel); p[x][y] = colorModel.getRGB(buf) & 0xFFFFFF; } } } else if (raster.getTransferType() == DataBuffer.TYPE_INT) { for (int x = 0; x < w; ++x) { p[x] = (int[]) raster.getDataElements(x, 0, 1, h, null); } } else { throw new RuntimeException("findSubImageInImage not implemented for image transfer type " + raster.getTransferType() + " yet."); } for (int x = 0; x < w; ++x) { for (int y = 0; y < h; ++y) { Iterator<Map.Entry<Integer, List<Point>>> i = rgb2offsets.entrySet().iterator(); compareWithSubImageLoop: while (i.hasNext()) { Map.Entry<Integer, List<Point>> mapEntry = i.next(); int expectedRgb = mapEntry.getKey(); for (Point offset : mapEntry.getValue()) { int xx = x + offset.x; int yy = y + offset.y; if (xx >= w || yy >= h || expectedRgb != p[xx][yy]) { break compareWithSubImageLoop; } } if (!i.hasNext()) { result.add(new RectangularRegion(x, y, x + (sw - 1), y + (sh - 1))); if (result.size() == max) { return result; } } } } } return result; }
From source file:MainClass.java
private void setThePixels(int x, int y, int width, int height, ColorModel cm, Object pixels, int offset, int scansize) { int sourceOffset = offset; int destinationOffset = y * savedWidth + x; boolean bytearray = (pixels instanceof byte[]); for (int yy = 0; yy < height; yy++) { for (int xx = 0; xx < width; xx++) if (bytearray) savedPixels[destinationOffset++] = cm.getRGB(((byte[]) pixels)[sourceOffset++] & 0xff); else//from w w w.ja va2 s. co m savedPixels[destinationOffset++] = cm.getRGB(((int[]) pixels)[sourceOffset++]); sourceOffset += (scansize - width); destinationOffset += (savedWidth - width); } }
From source file:com.piaoyou.util.ImageUtil.java
public void setPixels(int x, int y, int width, int height, ColorModel model, byte pixels[], int offset, int scansize) { // Store pixels in srcPixels array if (srcPixels == null) srcPixels = new int[srcWidth * srcHeight]; for (int row = 0, destRow = y * srcWidth; row < height; row++, destRow += srcWidth) { int rowOff = offset + row * scansize; for (int col = 0; col < width; col++) // v1.2 : Added & 0xFF to disable sign bit srcPixels[destRow + x + col] = model.getRGB(pixels[rowOff + col] & 0xFF); }//from w ww . j a v a 2s. c o m }
From source file:com.piaoyou.util.ImageUtil.java
public void setPixels(int x, int y, int width, int height, ColorModel model, int pixels[], int offset, int scansize) { // Store pixels in srcPixels array if (srcPixels == null) srcPixels = new int[srcWidth * srcHeight]; for (int row = 0, destRow = y * srcWidth; row < height; row++, destRow += srcWidth) { int rowOff = offset + row * scansize; for (int col = 0; col < width; col++) // If model == null, consider it's the default RGB model srcPixels[destRow + x + col] = model == null ? pixels[rowOff + col] : model.getRGB(pixels[rowOff + col]); }/*from ww w .j a v a 2 s. c om*/ }
From source file:GifEncoder.java
public void setPixels(int x, int y, int w, int h, ColorModel model, byte[] pixels, int off, int scansize) { int[] rgbPixels = new int[w]; for (int row = 0; row < h; ++row) { int rowOff = off + row * scansize; for (int col = 0; col < w; ++col) rgbPixels[col] = model.getRGB(pixels[rowOff + col] & 0xff); try {//from ww w . j av a 2 s.co m encodePixelsWrapper(x, y + row, w, 1, rgbPixels, 0, w); } catch (IOException e) { iox = e; stop(); return; } } }
From source file:GifEncoder.java
public void setPixels(int x, int y, int w, int h, ColorModel model, int[] pixels, int off, int scansize) { if (model == rgbModel) { try {//from w ww.j a va 2 s .co m encodePixelsWrapper(x, y, w, h, pixels, off, scansize); } catch (IOException e) { iox = e; stop(); return; } } else { int[] rgbPixels = new int[w]; for (int row = 0; row < h; ++row) { int rowOff = off + row * scansize; for (int col = 0; col < w; ++col) rgbPixels[col] = model.getRGB(pixels[rowOff + col]); try { encodePixelsWrapper(x, y + row, w, 1, rgbPixels, 0, w); } catch (IOException e) { iox = e; stop(); return; } } } }
From source file:org.apache.xmlgraphics.ps.PSImageUtils.java
/** * Extracts a packed RGB integer array of a RenderedImage. * @param img the image//from ww w .j a v a2s . c om * @param startX the starting X coordinate * @param startY the starting Y coordinate * @param w the width of the cropped image * @param h the height of the cropped image * @param rgbArray the prepared integer array to write to * @param offset offset in the target array * @param scansize width of a row in the target array * @return the populated integer array previously passed in as rgbArray parameter */ public static int[] getRGB(RenderedImage img, int startX, int startY, int w, int h, int[] rgbArray, int offset, int scansize) { Raster raster = img.getData(); int yoff = offset; int off; Object data; int nbands = raster.getNumBands(); int dataType = raster.getDataBuffer().getDataType(); switch (dataType) { case DataBuffer.TYPE_BYTE: data = new byte[nbands]; break; case DataBuffer.TYPE_USHORT: data = new short[nbands]; break; case DataBuffer.TYPE_INT: data = new int[nbands]; break; case DataBuffer.TYPE_FLOAT: data = new float[nbands]; break; case DataBuffer.TYPE_DOUBLE: data = new double[nbands]; break; default: throw new IllegalArgumentException("Unknown data buffer type: " + dataType); } if (rgbArray == null) { rgbArray = new int[offset + h * scansize]; } ColorModel colorModel = img.getColorModel(); for (int y = startY; y < startY + h; y++, yoff += scansize) { off = yoff; for (int x = startX; x < startX + w; x++) { rgbArray[off++] = colorModel.getRGB(raster.getDataElements(x, y, data)); } } return rgbArray; }
From source file:ucar.unidata.idv.ui.ImageGenerator.java
private static boolean isNotBlank(BufferedImage image) { // yes, i know this is bonkers. yes, the next step is to try sampling // to avoid iterating over each pixel. // tests on my linux machine typically find a non-blank pixel within the // first 100 iterations, and fewer than 5 retries to get a non-blank // *image* (typically 1-2 retries though) DataBuffer buf = image.getRaster().getDataBuffer(); ColorModel model = image.getColorModel(); boolean result = false; int i;//from ww w . ja va 2 s .c o m for (i = 0; i < buf.getSize(); i++) { // it's apparently not sufficient to simply grab the value directly; // Linux seems to store the "blank" value as -16777216 (-2^24, which // makes a lot of sense for images), while on OS X the blank value // is simply 0. i suspect the getRGB stuff is a candidate for // inlining by the JIT, but profiling is needed. int rgb = model.getRGB(buf.getElem(i)); if (rgb != -16777216) { logger.trace("found non-blank value '{}' at index {}", rgb, i); result = true; break; } } logger.trace("{} iterations to return {}", i, result); return result; }