List of usage examples for java.awt.image WritableRaster getNumBands
public final int getNumBands()
From source file:com.actelion.research.orbit.imageAnalysis.utils.ImageUtils.java
/** * Calculates and returns band histograms of a BufferedImage * * @param image// w w w. j a va 2 s.c o m * @return */ public static int[][] getChannelHistograms(BufferedImage image) { WritableRaster raster = image.getRaster(); int[][] histograms = new int[raster .getNumBands()][(int) (Math.pow(2, image.getColorModel().getPixelSize()) - 1)]; int width = image.getWidth(); int height = image.getHeight(); for (int row = 0; row < height; row++) { for (int col = 0; col < width; col++) { for (int band = 0; band < raster.getNumBands(); band++) { histograms[band][raster.getSample(col, row, band)]++; } } } return histograms; }
From source file:com.actelion.research.orbit.imageAnalysis.utils.ImageUtils.java
public static int[] getPercentileIntensity(BufferedImage image, double percentile) { WritableRaster raster = image.getRaster(); int[] intensities = new int[raster.getNumBands()]; DescriptiveStatistics[] ds = new DescriptiveStatistics[raster.getNumBands()]; for (int i = 0; i < raster.getNumBands(); i++) ds[i] = new DescriptiveStatistics(); int width = image.getWidth(); int height = image.getHeight(); for (int row = 0; row < height; row++) { for (int col = 0; col < width; col++) { for (int band = 0; band < raster.getNumBands(); band++) { ds[band].addValue(raster.getSample(col, row, band)); }/*from w w w . j a v a2 s . c o m*/ } } for (int i = 0; i < ds.length; i++) { if (percentile == 0d) intensities[i] = (int) ds[i].getMin(); else if (percentile == 100d) intensities[i] = (int) ds[i].getMax(); else intensities[i] = (int) ds[i].getPercentile(percentile); } return intensities; }
From source file:com.actelion.research.orbit.imageAnalysis.utils.ImageUtils.java
/** * Calculates and returns band histograms of a BufferedImage w/o a need to extract the raster * * @param raster//from w w w. j av a2 s .c o m * @param width * @param height * @param iNumBins * @return */ public static int[][] getChannelHistograms(WritableRaster raster, int width, int height, int iNumBins) { int[][] histograms = new int[raster.getNumBands()][iNumBins]; for (int row = 0; row < height; row++) { for (int col = 0; col < width; col++) { for (int band = 0; band < raster.getNumBands(); band++) { histograms[band][raster.getSample(col, row, band)]++; } } } return histograms; }
From source file:com.actelion.research.orbit.imageAnalysis.utils.ImageUtils.java
/** * scales bands to min = 0 & max = 2^8 or 2^16 * * @param image//from w w w . jav a 2s . co m * @param min int[] containing minima per band * @param max * @return */ public static BufferedImage scaleIntensities(BufferedImage image, int[] min, int[] max) throws IllegalArgumentException { WritableRaster raster = image.getRaster(); if ((min.length != max.length) || min.length != raster.getNumBands()) throw new IllegalArgumentException( "Please ensure consistency of min and max arrays and number of bands in image"); int width = image.getWidth(); int height = image.getHeight(); for (int row = 0; row < height; row++) { for (int col = 0; col < width; col++) { for (int band = 0; band < raster.getNumBands(); band++) { int pixel = raster.getSample(col, row, band); if (pixel < min[band]) pixel = min[band]; if (pixel > max[band]) pixel = max[band]; pixel = ((int) (((((double) pixel - min[band]) / (max[band] - min[band])) * ((int) Math.pow(2, image.getColorModel().getPixelSize()) - 1)) + 0.5)); raster.setSample(col, row, band, pixel); } } } return image; }
From source file:com.actelion.research.orbit.imageAnalysis.utils.ImageUtils.java
/** * Returns min and max intensities and percentiles 0.01, 0.05, 0.1, 0.9, 0.95, 0.99 of a BufferedImage. * * @param image/* w w w. j a va 2s .co m*/ * @return */ public static int[][] getMinMaxIntensitiesOfBI(BufferedImage image) { WritableRaster raster = image.getRaster(); // per band: { min, 1%, 5%, 10%, 90%, 95%, 99%, max } int[][] intensities = new int[raster.getNumBands()][8]; DescriptiveStatistics[] ds = new DescriptiveStatistics[raster.getNumBands()]; for (int i = 0; i < raster.getNumBands(); i++) ds[i] = new DescriptiveStatistics(); int width = image.getWidth(); int height = image.getHeight(); for (int row = 0; row < height; row++) { for (int col = 0; col < width; col++) { for (int band = 0; band < raster.getNumBands(); band++) { ds[band].addValue(raster.getSample(col, row, band)); } } } for (int i = 0; i < ds.length; i++) { intensities[i][0] = (int) ds[i].getMin(); intensities[i][1] = (int) ds[i].getPercentile(1); intensities[i][2] = (int) ds[i].getPercentile(5); intensities[i][3] = (int) ds[i].getPercentile(10); intensities[i][4] = (int) ds[i].getPercentile(90); intensities[i][5] = (int) ds[i].getPercentile(95); intensities[i][6] = (int) ds[i].getPercentile(99); intensities[i][7] = (int) ds[i].getMax(); } return intensities; }
From source file:GraphicsUtil.java
public static void multiplyAlpha(WritableRaster wr) { if (is_BYTE_COMP_Data(wr.getSampleModel())) mult_BYTE_COMP_Data(wr);/* w w w .j a v a 2 s. c om*/ else if (is_INT_PACK_Data(wr.getSampleModel(), true)) mult_INT_PACK_Data(wr); else { int[] pixel = null; int bands = wr.getNumBands(); float norm = 1f / 255f; int x0, x1, y0, y1, a, b; float alpha; x0 = wr.getMinX(); x1 = x0 + wr.getWidth(); y0 = wr.getMinY(); y1 = y0 + wr.getHeight(); for (int y = y0; y < y1; y++) for (int x = x0; x < x1; x++) { pixel = wr.getPixel(x, y, pixel); a = pixel[bands - 1]; if ((a >= 0) && (a < 255)) { alpha = a * norm; for (b = 0; b < bands - 1; b++) pixel[b] = (int) (pixel[b] * alpha + 0.5f); wr.setPixel(x, y, pixel); } } } }
From source file:GraphicsUtil.java
public static void divideAlpha(WritableRaster wr) { if (is_BYTE_COMP_Data(wr.getSampleModel())) divide_BYTE_COMP_Data(wr); else if (is_INT_PACK_Data(wr.getSampleModel(), true)) divide_INT_PACK_Data(wr); else {// ww w . ja v a 2s.c om int x0, x1, y0, y1, a, b; float ialpha; int bands = wr.getNumBands(); int[] pixel = null; x0 = wr.getMinX(); x1 = x0 + wr.getWidth(); y0 = wr.getMinY(); y1 = y0 + wr.getHeight(); for (int y = y0; y < y1; y++) for (int x = x0; x < x1; x++) { pixel = wr.getPixel(x, y, pixel); a = pixel[bands - 1]; if ((a > 0) && (a < 255)) { ialpha = 255 / (float) a; for (b = 0; b < bands - 1; b++) pixel[b] = (int) (pixel[b] * ialpha + 0.5f); wr.setPixel(x, y, pixel); } } } }
From source file:com.actelion.research.orbit.imageAnalysis.utils.ImageUtils.java
/** * Can be used to verify impact of different encoding algorithms. Compares two BufferedImages and outputs differences between those. * * @param image/*ww w. j a v a2s. c om*/ * @param image2 * @return */ public static int[] calculateBufferedImageDifferencesPxByPx(BufferedImage image, BufferedImage image2) { int width = image.getWidth(); int height = image.getHeight(); int width2 = image2.getWidth(); int height2 = image2.getHeight(); WritableRaster raster1 = image.getRaster(); WritableRaster raster2 = image2.getRaster(); if (width != width2 || height != height2) throw new IllegalArgumentException( "Please insert two identical images that were treated with different image algorithms"); int[] diff = new int[width * height]; for (int row = 0; row < height; row++) { for (int col = 0; col < width; col++) { for (int band = 0; band < raster1.getNumBands(); band++) { int p1 = raster1.getSample(col, row, band); int p2 = raster2.getSample(col, row, band); diff[((row * width) + col)] = p2 - p1; } } } return diff; }
From source file:GraphicsUtil.java
/** * Copies data from one bufferedImage to another paying attention * to the state of AlphaPreMultiplied./*www.j a v a 2 s. c o m*/ * * @param src The source * @param srcRect The Rectangle of source data to be copied * @param dst The destination * @param destP The Place for the upper left corner of srcRect in dst. */ public static void copyData(BufferedImage src, Rectangle srcRect, BufferedImage dst, Point destP) { /* if (srcCS != dstCS) throw new IllegalArgumentException ("Images must be in the same ColorSpace in order "+ "to copy Data between them"); */ boolean srcAlpha = src.getColorModel().hasAlpha(); boolean dstAlpha = dst.getColorModel().hasAlpha(); // System.out.println("Src has: " + srcAlpha + // " is: " + src.isAlphaPremultiplied()); // // System.out.println("Dst has: " + dstAlpha + // " is: " + dst.isAlphaPremultiplied()); if (srcAlpha == dstAlpha) if (!srcAlpha || src.isAlphaPremultiplied() == dst.isAlphaPremultiplied()) { // They match one another so just copy everything... copyData(src.getRaster(), dst.getRaster()); return; } // System.out.println("Using Slow CopyData"); int[] pixel = null; Raster srcR = src.getRaster(); WritableRaster dstR = dst.getRaster(); int bands = dstR.getNumBands(); int dx = destP.x - srcRect.x; int dy = destP.y - srcRect.y; int w = srcRect.width; int x0 = srcRect.x; int y0 = srcRect.y; int y1 = y0 + srcRect.height - 1; if (!srcAlpha) { // Src has no alpha dest does so set alpha to 1.0 everywhere. // System.out.println("Add Alpha"); int[] oPix = new int[bands * w]; int out = (w * bands) - 1; // The 2 skips alpha channel while (out >= 0) { // Fill alpha channel with 255's oPix[out] = 255; out -= bands; } int b, in; for (int y = y0; y <= y1; y++) { pixel = srcR.getPixels(x0, y, w, 1, pixel); in = w * (bands - 1) - 1; out = (w * bands) - 2; // The 2 skips alpha channel on last pix switch (bands) { case 4: while (in >= 0) { oPix[out--] = pixel[in--]; oPix[out--] = pixel[in--]; oPix[out--] = pixel[in--]; out--; } break; default: while (in >= 0) { for (b = 0; b < bands - 1; b++) oPix[out--] = pixel[in--]; out--; } } dstR.setPixels(x0 + dx, y + dy, w, 1, oPix); } } else if (dstAlpha && dst.isAlphaPremultiplied()) { // Src and dest have Alpha but we need to multiply it for dst. // System.out.println("Mult Case"); int a, b, alpha, in, fpNorm = (1 << 24) / 255, pt5 = 1 << 23; for (int y = y0; y <= y1; y++) { pixel = srcR.getPixels(x0, y, w, 1, pixel); in = bands * w - 1; switch (bands) { case 4: while (in >= 0) { a = pixel[in]; if (a == 255) in -= 4; else { in--; alpha = fpNorm * a; pixel[in] = (pixel[in] * alpha + pt5) >>> 24; in--; pixel[in] = (pixel[in] * alpha + pt5) >>> 24; in--; pixel[in] = (pixel[in] * alpha + pt5) >>> 24; in--; } } break; default: while (in >= 0) { a = pixel[in]; if (a == 255) in -= bands; else { in--; alpha = fpNorm * a; for (b = 0; b < bands - 1; b++) { pixel[in] = (pixel[in] * alpha + pt5) >>> 24; in--; } } } } dstR.setPixels(x0 + dx, y + dy, w, 1, pixel); } } else if (dstAlpha && !dst.isAlphaPremultiplied()) { // Src and dest have Alpha but we need to divide it out for dst. // System.out.println("Div Case"); int a, b, ialpha, in, fpNorm = 0x00FF0000, pt5 = 1 << 15; for (int y = y0; y <= y1; y++) { pixel = srcR.getPixels(x0, y, w, 1, pixel); in = (bands * w) - 1; switch (bands) { case 4: while (in >= 0) { a = pixel[in]; if ((a <= 0) || (a >= 255)) in -= 4; else { in--; ialpha = fpNorm / a; pixel[in] = (pixel[in] * ialpha + pt5) >>> 16; in--; pixel[in] = (pixel[in] * ialpha + pt5) >>> 16; in--; pixel[in] = (pixel[in] * ialpha + pt5) >>> 16; in--; } } break; default: while (in >= 0) { a = pixel[in]; if ((a <= 0) || (a >= 255)) in -= bands; else { in--; ialpha = fpNorm / a; for (b = 0; b < bands - 1; b++) { pixel[in] = (pixel[in] * ialpha + pt5) >>> 16; in--; } } } } dstR.setPixels(x0 + dx, y + dy, w, 1, pixel); } } else if (src.isAlphaPremultiplied()) { int[] oPix = new int[bands * w]; // Src has alpha dest does not so unpremult and store... // System.out.println("Remove Alpha, Div Case"); int a, b, ialpha, in, out, fpNorm = 0x00FF0000, pt5 = 1 << 15; for (int y = y0; y <= y1; y++) { pixel = srcR.getPixels(x0, y, w, 1, pixel); in = (bands + 1) * w - 1; out = (bands * w) - 1; while (in >= 0) { a = pixel[in]; in--; if (a > 0) { if (a < 255) { ialpha = fpNorm / a; for (b = 0; b < bands; b++) oPix[out--] = (pixel[in--] * ialpha + pt5) >>> 16; } else for (b = 0; b < bands; b++) oPix[out--] = pixel[in--]; } else { in -= bands; for (b = 0; b < bands; b++) oPix[out--] = 255; } } dstR.setPixels(x0 + dx, y + dy, w, 1, oPix); } } else { // Src has unpremult alpha, dest does not have alpha, // just copy the color channels over. Rectangle dstRect = new Rectangle(destP.x, destP.y, srcRect.width, srcRect.height); for (int b = 0; b < bands; b++) copyBand(srcR, srcRect, b, dstR, dstRect, b); } }
From source file:org.polymap.styler.helper.ImageHelper.java
public static ImageData convertToSWT(BufferedImage bufferedImage) { if (bufferedImage.getColorModel() instanceof DirectColorModel) { DirectColorModel colorModel = (DirectColorModel) bufferedImage.getColorModel(); PaletteData palette = new PaletteData(colorModel.getRedMask(), colorModel.getGreenMask(), colorModel.getBlueMask()); ImageData data = new ImageData(bufferedImage.getWidth(), bufferedImage.getHeight(), colorModel.getPixelSize(), palette); WritableRaster raster = bufferedImage.getRaster(); int[] pixelArray = new int[raster.getNumBands()]; for (int y = 0; y < data.height; y++) { for (int x = 0; x < data.width; x++) { raster.getPixel(x, y, pixelArray); int pixel = palette.getPixel(new RGB(pixelArray[0], pixelArray[1], pixelArray[2])); data.setPixel(x, y, pixel); }// www . j av a 2 s. co m } return data; } else if (bufferedImage.getColorModel() instanceof IndexColorModel) { IndexColorModel colorModel = (IndexColorModel) bufferedImage.getColorModel(); int size = colorModel.getMapSize(); byte[] reds = new byte[size]; byte[] greens = new byte[size]; byte[] blues = new byte[size]; colorModel.getReds(reds); colorModel.getGreens(greens); colorModel.getBlues(blues); RGB[] rgbs = new RGB[size]; for (int i = 0; i < rgbs.length; i++) { rgbs[i] = new RGB(reds[i] & 0xFF, greens[i] & 0xFF, blues[i] & 0xFF); } PaletteData palette = new PaletteData(rgbs); ImageData data = new ImageData(bufferedImage.getWidth(), bufferedImage.getHeight(), colorModel.getPixelSize(), palette); data.transparentPixel = colorModel.getTransparentPixel(); 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++) { raster.getPixel(x, y, pixelArray); data.setPixel(x, y, pixelArray[0]); } } return data; } return null; }