List of usage examples for java.awt.image ColorModel isAlphaPremultiplied
boolean isAlphaPremultiplied
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From source file:ImageUtil.java
/** * create new image from source image// w ww . j a v a 2 s . c o m * @param srcImg source image * @param targetWidth target image width * @param targetHeight target image height * @return new image with specify width and height */ public static BufferedImage createNewImage(BufferedImage srcImg, int targetWidth, int targetHeight) { BufferedImage targetImg = null; int type = srcImg.getType(); if (type == BufferedImage.TYPE_CUSTOM) { ColorModel cm = srcImg.getColorModel(); WritableRaster raster = cm.createCompatibleWritableRaster(targetWidth, targetHeight); boolean alphaPremultiplied = cm.isAlphaPremultiplied(); targetImg = new BufferedImage(cm, raster, alphaPremultiplied, null); } else { targetImg = new BufferedImage(targetWidth, targetHeight, type); } return targetImg; }
From source file:com.fengduo.bee.service.impl.file.FileServiceImpl.java
/** * ?/*from www . ja v a2 s .c om*/ * * @param source * @param targetW * @param targetH * @param ifScaling ? * @return */ public static BufferedImage resize(BufferedImage source, int targetW, int targetH, boolean ifScaling) { // targetWtargetH int type = source.getType(); BufferedImage target = null; double sx = (double) targetW / source.getWidth(); double sy = (double) targetH / source.getHeight(); // targetWtargetH??,?if else??? if (ifScaling) { if (sx > sy) { sx = sy; targetW = (int) (sx * source.getWidth()); } else { sy = sx; targetH = (int) (sy * source.getHeight()); } } if (type == BufferedImage.TYPE_CUSTOM) { // handmade ColorModel cm = source.getColorModel(); WritableRaster raster = cm.createCompatibleWritableRaster(targetW, targetH); boolean alphaPremultiplied = cm.isAlphaPremultiplied(); target = new BufferedImage(cm, raster, alphaPremultiplied, null); } else target = new BufferedImage(targetW, targetH, type); Graphics2D g = target.createGraphics(); // smoother than exlax: g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY); g.drawRenderedImage(source, AffineTransform.getScaleInstance(sx, sy)); g.dispose(); return target; }
From source file:oct.util.Util.java
public static BufferedImage deepCopyBufferedImage(BufferedImage bi) { ColorModel cm = bi.getColorModel(); boolean isAlphaPremultiplied = cm.isAlphaPremultiplied(); WritableRaster raster = bi.copyData(null); return new BufferedImage(cm, raster, isAlphaPremultiplied, null); }
From source file:GraphicsUtil.java
/** * Create a new ColorModel with it's alpha premultiplied state matching * newAlphaPreMult.//from ww w .j ava 2 s . co m * @param cm The ColorModel to change the alpha premult state of. * @param newAlphaPreMult The new state of alpha premult. * @return A new colorModel that has isAlphaPremultiplied() * equal to newAlphaPreMult. */ public static ColorModel coerceColorModel(ColorModel cm, boolean newAlphaPreMult) { if (cm.isAlphaPremultiplied() == newAlphaPreMult) return cm; // Easiest way to build proper colormodel for new Alpha state... // Eventually this should switch on known ColorModel types and // only fall back on this hack when the CM type is unknown. WritableRaster wr = cm.createCompatibleWritableRaster(1, 1); return cm.coerceData(wr, newAlphaPreMult); }
From source file:lucee.runtime.img.ImageUtil.java
public static BufferedImage createBufferedImage(BufferedImage image, int columns, int rows) { ColorModel colormodel = image.getColorModel(); BufferedImage newImage;//from w w w . ja v a 2 s . c om if (colormodel instanceof IndexColorModel) { if (colormodel.getTransparency() != 1) newImage = new BufferedImage(columns, rows, 2); else newImage = new BufferedImage(columns, rows, 1); } else { newImage = new BufferedImage(colormodel, image.getRaster().createCompatibleWritableRaster(columns, rows), colormodel.isAlphaPremultiplied(), null); } return newImage; }
From source file:GraphicsUtil.java
/** * Coerces data within a bufferedImage to match newAlphaPreMult, * Note that this can not change the colormodel of bi so you * * @param wr The raster to change the state of. * @param cm The colormodel currently associated with data in wr. * @param newAlphaPreMult The desired state of alpha Premult for raster. * @return A new colormodel that matches newAlphaPreMult. *///from ww w .j av a 2 s. co m public static ColorModel coerceData(WritableRaster wr, ColorModel cm, boolean newAlphaPreMult) { // System.out.println("CoerceData: " + cm.isAlphaPremultiplied() + // " Out: " + newAlphaPreMult); if (cm.hasAlpha() == false) // Nothing to do no alpha channel return cm; if (cm.isAlphaPremultiplied() == newAlphaPreMult) // nothing to do alpha state matches... return cm; // System.out.println("CoerceData: " + wr.getSampleModel()); if (newAlphaPreMult) { multiplyAlpha(wr); } else { divideAlpha(wr); } return coerceColorModel(cm, newAlphaPreMult); }
From source file:GraphicsUtil.java
/** * Coerces data within a bufferedImage to match newAlphaPreMult, * Note that this can not change the colormodel of bi so you * * @param wr The raster to change the state of. * @param cm The colormodel currently associated with data in wr. * @param newAlphaPreMult The desired state of alpha Premult for raster. * @return A new colormodel that matches newAlphaPreMult. *///from www .j a v a2s . c o m public static ColorModel coerceData(WritableRaster wr, ColorModel cm, boolean newAlphaPreMult) { // System.out.println("CoerceData: " + cm.isAlphaPremultiplied() + // " Out: " + newAlphaPreMult); if (!cm.hasAlpha()) // Nothing to do no alpha channel return cm; if (cm.isAlphaPremultiplied() == newAlphaPreMult) // nothing to do alpha state matches... return cm; // System.out.println("CoerceData: " + wr.getSampleModel()); if (newAlphaPreMult) { multiplyAlpha(wr); } else { divideAlpha(wr); } return coerceColorModel(cm, newAlphaPreMult); }
From source file:ImageOpByRomain.java
/** * <p>/* w ww .ja v a2 s. c om*/ * Returns a new <code>BufferedImage</code> using the same color model as * the image passed as a parameter. The returned image is only compatible with * the image passed as a parameter. This does not mean the returned image is * compatible with the hardware. * </p> * * @param image * the reference image from which the color model of the new image * is obtained * @return a new <code>BufferedImage</code>, compatible with the color * model of <code>image</code> */ public static BufferedImage createColorModelCompatibleImage(BufferedImage image) { ColorModel cm = image.getColorModel(); return new BufferedImage(cm, cm.createCompatibleWritableRaster(image.getWidth(), image.getHeight()), cm.isAlphaPremultiplied(), null); }
From source file:app.springapp.ImageConverter.java
BufferedImage deepCopy(BufferedImage bi) {
ColorModel cm = bi.getColorModel();
boolean isAlphaPremultiplied = cm.isAlphaPremultiplied();
WritableRaster raster = bi.copyData(null);
return new BufferedImage(cm, raster, isAlphaPremultiplied, null);
}
From source file:com.dianping.imcaptcha.strategy.WaveFilter.java
public BufferedImage filter(BufferedImage src, BufferedImage dst) { int width = src.getWidth(); int height = src.getHeight(); int type = src.getType(); WritableRaster srcRaster = src.getRaster(); originalSpace = new Rectangle(0, 0, width, height); transformedSpace = new Rectangle(0, 0, width, height); transformSpace(transformedSpace);/*from w ww . java 2 s . c o m*/ if (dst == null) { ColorModel dstCM = src.getColorModel(); dst = new BufferedImage(dstCM, dstCM.createCompatibleWritableRaster(transformedSpace.width, transformedSpace.height), dstCM.isAlphaPremultiplied(), null); } WritableRaster dstRaster = dst.getRaster(); int[] inPixels = getRGB(src, 0, 0, width, height, null); if (interpolation == NEAREST_NEIGHBOUR) return filterPixelsNN(dst, width, height, inPixels, transformedSpace); int srcWidth = width; int srcHeight = height; int srcWidth1 = width - 1; int srcHeight1 = height - 1; int outWidth = transformedSpace.width; int outHeight = transformedSpace.height; int outX, outY; int index = 0; int[] outPixels = new int[outWidth]; float radius = srcHeight * 1.0f / 2 / (float) Math.PI; outX = transformedSpace.x; outY = transformedSpace.y; float[] out = new float[2]; for (int y = 0; y < outHeight; y++) { for (int x = 0; x < outWidth; x++) { transformInverse(outX + x, outY + y, out, radius); int srcX = (int) Math.floor(out[0]); int srcY = (int) Math.floor(out[1]); float xWeight = out[0] - srcX; float yWeight = out[1] - srcY; int nw, ne, sw, se; if (srcX >= 0 && srcX < srcWidth1 && srcY >= 0 && srcY < srcHeight1) { // Easy case, all corners are in the image int i = srcWidth * srcY + srcX; nw = inPixels[i]; ne = inPixels[i + 1]; sw = inPixels[i + srcWidth]; se = inPixels[i + srcWidth + 1]; } else { // Some of the corners are off the image nw = getPixel(inPixels, srcX, srcY, srcWidth, srcHeight); ne = getPixel(inPixels, srcX + 1, srcY, srcWidth, srcHeight); sw = getPixel(inPixels, srcX, srcY + 1, srcWidth, srcHeight); se = getPixel(inPixels, srcX + 1, srcY + 1, srcWidth, srcHeight); } outPixels[x] = ImageMath.bilinearInterpolate(xWeight, yWeight, nw, ne, sw, se); } setRGB(dst, 0, y, transformedSpace.width, 1, outPixels); } return dst; }