List of usage examples for java.awt.image WritableRaster setDataElements
public void setDataElements(int x, int y, Raster inRaster)
From source file:CheckAlignmentOpImage.java
public Raster computeTile(int x, int y) { Raster r1 = source1.getTile(x, y); Raster r2 = source2.getTile(x, y); int xBounds = r1.getWidth(); if (r2.getWidth() < xBounds) xBounds = r2.getWidth();//from w ww . ja va 2 s . c om int yBounds = r1.getHeight(); if (r2.getHeight() < yBounds) yBounds = r2.getHeight(); WritableRaster wr; wr = r1.createCompatibleWritableRaster(xBounds, yBounds); int tmpi; int tmpj; for (int i = 0; i < wr.getWidth(); i++) for (int j = 0; j < wr.getHeight(); j++) { tmpi = i / samplingPeriod; tmpj = j / samplingPeriod; if ((tmpi % 2 == 0) && (tmpj % 2 == 0)) wr.setDataElements(i, j, r2.getDataElements(i, j, null)); else if ((tmpi % 2 != 0) && (tmpj % 2 != 0)) wr.setDataElements(i, j, r2.getDataElements(i, j, null)); else wr.setDataElements(i, j, r1.getDataElements(i, j, null)); } return wr; }
From source file:RasterImageTest.java
/** * Makes the Mandelbrot image./*from www . j a v a 2 s . c o m*/ * @param width the width * @parah height the height * @return the image */ public BufferedImage makeMandelbrot(int width, int height) { BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB); WritableRaster raster = image.getRaster(); ColorModel model = image.getColorModel(); Color fractalColor = Color.red; int argb = fractalColor.getRGB(); Object colorData = model.getDataElements(argb, null); for (int i = 0; i < width; i++) for (int j = 0; j < height; j++) { double a = XMIN + i * (XMAX - XMIN) / width; double b = YMIN + j * (YMAX - YMIN) / height; if (!escapesToInfinity(a, b)) raster.setDataElements(i, j, colorData); } return image; }
From source file:haven.Utils.java
public static BufferedImage outline(BufferedImage img, Color col) { Coord sz = imgsz(img).add(2, 2);/*from w w w. j a va2 s.c o m*/ BufferedImage ol = TexI.mkbuf(sz); Object fcol = ol.getColorModel().getDataElements(col.getRGB(), null); Raster src = img.getRaster(); WritableRaster dst = ol.getRaster(); for (int y = 0; y < sz.y; y++) { for (int x = 0; x < sz.x; x++) { boolean t; if ((y == 0) || (x == 0) || (y == sz.y - 1) || (x == sz.x - 1)) { t = true; } else { t = src.getSample(x - 1, y - 1, 3) < 250; } if (!t) continue; if (((x > 1) && (y > 0) && (y < sz.y - 1) && (src.getSample(x - 2, y - 1, 3) >= 250)) || ((x > 0) && (y > 1) && (x < sz.x - 1) && (src.getSample(x - 1, y - 2, 3) >= 250)) || ((x < sz.x - 2) && (y > 0) && (y < sz.y - 1) && (src.getSample(x, y - 1, 3) >= 250)) || ((x > 0) && (y < sz.y - 2) && (x < sz.x - 1) && (src.getSample(x - 1, y, 3) >= 250))) dst.setDataElements(x, y, fcol); } } return (ol); }
From source file:org.esa.s2tbx.dataio.jp2.internal.JP2TileOpImage.java
private void computeRectDirect(WritableRaster dest, Rectangle destRect) { try (OpenJP2Decoder decoder = new OpenJP2Decoder(this.cacheDir, this.imageFile, this.bandIndex, this.dataType, getLevel(), 20, tileIndex)) { Raster readTileImage = null; final DataBuffer dataBuffer = dest.getDataBuffer(); int tileWidth = this.getTileWidth(); int tileHeight = this.getTileHeight(); final int fileTileX = destRect.x / tileLayout.tileWidth; final int fileTileY = destRect.y / tileLayout.tileHeight; int fileTileOriginX = destRect.x - fileTileX * tileLayout.tileWidth; int fileTileOriginY = destRect.y - fileTileY * tileLayout.tileHeight; Dimension dimensions = decoder.getImageDimensions(); Rectangle fileTileRect = new Rectangle(0, 0, dimensions.width, dimensions.height); if (fileTileOriginX == 0 && tileLayout.tileWidth == tileWidth && fileTileOriginY == 0 && tileLayout.tileHeight == tileHeight && tileWidth * tileHeight == dataBuffer.getSize()) { readTileImage = decoder.read(null); } else {//from w w w.ja v a 2 s. c om final Rectangle tileRect = new Rectangle(fileTileOriginX, fileTileOriginY, tileWidth, tileHeight); final Rectangle intersection = fileTileRect.intersection(tileRect); if (!intersection.isEmpty()) { readTileImage = decoder.read(intersection); } } if (readTileImage != null) { Raster readBandRaster = readTileImage.createChild(0, 0, readTileImage.getWidth(), readTileImage.getHeight(), 0, 0, bands); dest.setDataElements(dest.getMinX(), dest.getMinY(), readBandRaster); } } catch (IOException e) { logger.severe(e.getMessage()); } }
From source file:org.apache.pdfbox.pdmodel.graphics.image.SampledImageReader.java
private static BufferedImage fromAny(PDImage pdImage, WritableRaster raster, COSArray colorKey) throws IOException { final PDColorSpace colorSpace = pdImage.getColorSpace(); final int numComponents = colorSpace.getNumberOfComponents(); final int width = pdImage.getWidth(); final int height = pdImage.getHeight(); final int bitsPerComponent = pdImage.getBitsPerComponent(); final float[] decode = getDecodeArray(pdImage); // read bit stream ImageInputStream iis = null;// ww w.j a v a 2 s . c o m try { // create stream iis = new MemoryCacheImageInputStream(pdImage.createInputStream()); final float sampleMax = (float) Math.pow(2, bitsPerComponent) - 1f; final boolean isIndexed = colorSpace instanceof PDIndexed; // init color key mask float[] colorKeyRanges = null; BufferedImage colorKeyMask = null; if (colorKey != null) { colorKeyRanges = colorKey.toFloatArray(); colorKeyMask = new BufferedImage(width, height, BufferedImage.TYPE_BYTE_GRAY); } // calculate row padding int padding = 0; if (width * numComponents * bitsPerComponent % 8 > 0) { padding = 8 - (width * numComponents * bitsPerComponent % 8); } // read stream byte[] srcColorValues = new byte[numComponents]; byte[] alpha = new byte[1]; for (int y = 0; y < height; y++) { for (int x = 0; x < width; x++) { boolean isMasked = true; for (int c = 0; c < numComponents; c++) { int value = (int) iis.readBits(bitsPerComponent); // color key mask requires values before they are decoded if (colorKeyRanges != null) { isMasked &= value >= colorKeyRanges[c * 2] && value <= colorKeyRanges[c * 2 + 1]; } // decode array final float dMin = decode[c * 2]; final float dMax = decode[(c * 2) + 1]; // interpolate to domain float output = dMin + (value * ((dMax - dMin) / sampleMax)); if (isIndexed) { // indexed color spaces get the raw value, because the TYPE_BYTE // below cannot be reversed by the color space without it having // knowledge of the number of bits per component srcColorValues[c] = (byte) Math.round(output); } else { // interpolate to TYPE_BYTE int outputByte = Math .round(((output - Math.min(dMin, dMax)) / Math.abs(dMax - dMin)) * 255f); srcColorValues[c] = (byte) outputByte; } } raster.setDataElements(x, y, srcColorValues); // set alpha channel in color key mask, if any if (colorKeyMask != null) { alpha[0] = (byte) (isMasked ? 255 : 0); colorKeyMask.getRaster().setDataElements(x, y, alpha); } } // rows are padded to the nearest byte iis.readBits(padding); } // use the color space to convert the image to RGB BufferedImage rgbImage = colorSpace.toRGBImage(raster); // apply color mask, if any if (colorKeyMask != null) { return applyColorKeyMask(rgbImage, colorKeyMask); } else { return rgbImage; } } finally { if (iis != null) { iis.close(); } } }
From source file:org.esa.s2tbx.dataio.jp2.internal.JP2TileOpImage.java
private void computeRectIndirect(WritableRaster dest, Rectangle destRect) { try {//from w w w. j a va 2s.co m Path tile = decompressTile(tileIndex, getLevel()); RenderedImage readTileImage = null; if (tile != null) { try (ImageReader imageReader = new ImageReader(tile)) { final DataBuffer dataBuffer = dest.getDataBuffer(); int tileWidth = this.getTileWidth(); int tileHeight = this.getTileHeight(); final int fileTileX = destRect.x / tileLayout.tileWidth; final int fileTileY = destRect.y / tileLayout.tileHeight; int fileTileOriginX = destRect.x - fileTileX * tileLayout.tileWidth; int fileTileOriginY = destRect.y - fileTileY * tileLayout.tileHeight; Rectangle fileTileRect = tileDims.get(tile); if (fileTileRect == null) { fileTileRect = new Rectangle(0, 0, imageReader.getImageWidth(), imageReader.getImageHeight()); tileDims.put(tile, fileTileRect); } if (fileTileOriginX == 0 && tileLayout.tileWidth == tileWidth && fileTileOriginY == 0 && tileLayout.tileHeight == tileHeight && tileWidth * tileHeight == dataBuffer.getSize()) { readTileImage = imageReader.read(); } else { final Rectangle tileRect = new Rectangle(fileTileOriginX, fileTileOriginY, tileWidth, tileHeight); final Rectangle intersection = fileTileRect.intersection(tileRect); if (!intersection.isEmpty()) { readTileImage = imageReader.read(intersection); } } if (readTileImage != null) { Raster readBandRaster = readTileImage.getData().createChild(0, 0, readTileImage.getWidth(), readTileImage.getHeight(), 0, 0, new int[] { bandIndex }); dest.setDataElements(dest.getMinX(), dest.getMinY(), readBandRaster); } } catch (IOException e) { logger.severe(e.getMessage()); } } } catch (IOException e) { logger.severe(e.getMessage()); } }