Examples with ColorModel java.awt.image.ColorModel used on opensource projects

Example 46 with ColorModel

use of java.awt.image.ColorModel in project Lucee by lucee.

the class BicubicScaleFilter method filter.

@Override
public BufferedImage filter(BufferedImage src, BufferedImage dst) {
    if (dst == null) {
        ColorModel dstCM = src.getColorModel();
        dst = new BufferedImage(dstCM, dstCM.createCompatibleWritableRaster(width, height), dstCM.isAlphaPremultiplied(), null);
    }
    Graphics2D g = dst.createGraphics();
    g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
    g.drawImage(src, 0, 0, width, height, null);
    g.dispose();
    return dst;
}

Example 47 with ColorModel

use of java.awt.image.ColorModel in project Lucee by lucee.

the class CurlFilter method filter.

@Override
public BufferedImage filter(BufferedImage src, BufferedImage dst) {
    int width = src.getWidth();
    int height = src.getHeight();
    this.width = src.getWidth();
    this.height = src.getHeight();
    // int type = src.getType();
    originalSpace = new Rectangle(0, 0, width, height);
    transformedSpace = new Rectangle(0, 0, width, height);
    transformSpace(transformedSpace);
    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];
    outX = transformedSpace.x;
    outY = transformedSpace.y;
    float[] out = new float[4];
    for (int y = 0; y < outHeight; y++) {
        for (int x = 0; x < outWidth; x++) {
            transformInverse(outX + x, outY + y, out);
            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);
            }
            int rgb = ImageMath.bilinearInterpolate(xWeight, yWeight, nw, ne, sw, se);
            int r = (rgb >> 16) & 0xff;
            int g = (rgb >> 8) & 0xff;
            int b = rgb & 0xff;
            float shade = out[2];
            r = (int) (r * shade);
            g = (int) (g * shade);
            b = (int) (b * shade);
            rgb = (rgb & 0xff000000) | (r << 16) | (g << 8) | b;
            if (out[3] != 0)
                outPixels[x] = PixelUtils.combinePixels(rgb, inPixels[srcWidth * y + x], PixelUtils.NORMAL);
            else
                outPixels[x] = rgb;
        }
        setRGB(dst, 0, y, transformedSpace.width, 1, outPixels);
    }
    return dst;
}

Example 48 with ColorModel

use of java.awt.image.ColorModel in project Lucee by lucee.

the class Image method rotate.

public void rotate(float x, float y, float angle, int interpolation) throws ExpressionException {
    if (x == -1)
        x = (float) getWidth() / 2;
    if (y == -1)
        y = (float) getHeight() / 2;
    angle = (float) Math.toRadians(angle);
    ColorModel cmSource = image().getColorModel();
    if (cmSource instanceof IndexColorModel && cmSource.hasAlpha() && !cmSource.isAlphaPremultiplied()) {
        image(paletteToARGB(image()));
        cmSource = image().getColorModel();
    }
    BufferedImage alpha = null;
    if (cmSource.hasAlpha() && !cmSource.isAlphaPremultiplied()) {
        alpha = getAlpha(image());
        image(removeAlpha(image()));
    }
    Interpolation interp = Interpolation.getInstance(0);
    if (INTERPOLATION_BICUBIC == interpolation)
        interp = Interpolation.getInstance(1);
    else if (INTERPOLATION_BILINEAR == interpolation)
        interp = Interpolation.getInstance(2);
    if (alpha != null) {
        ParameterBlock params = new ParameterBlock();
        params.addSource(alpha);
        params.add(x);
        params.add(y);
        params.add(angle);
        params.add(interp);
        params.add(new double[] { 0.0 });
        RenderingHints hints = new RenderingHints(RenderingHints.KEY_INTERPOLATION, (RenderingHints.VALUE_INTERPOLATION_BICUBIC));
        hints.add(new RenderingHints(JAI.KEY_BORDER_EXTENDER, new BorderExtenderConstant(new double[] { 255.0 })));
        hints.add(new RenderingHints(JAI.KEY_REPLACE_INDEX_COLOR_MODEL, Boolean.TRUE));
        alpha = JAI.create("rotate", params, hints).getAsBufferedImage();
    }
    ParameterBlock params = new ParameterBlock();
    params.addSource(image());
    params.add(x);
    params.add(y);
    params.add(angle);
    params.add(interp);
    params.add(new double[] { 0.0 });
    BorderExtender extender = new BorderExtenderConstant(new double[] { 0.0 });
    RenderingHints hints = new RenderingHints(JAI.KEY_BORDER_EXTENDER, extender);
    hints.add(new RenderingHints(JAI.KEY_REPLACE_INDEX_COLOR_MODEL, Boolean.TRUE));
    image(JAI.create("rotate", params, hints).getAsBufferedImage());
    if (alpha != null)
        image(addAlpha(image(), alpha, 0, 0));
}

Example 49 with ColorModel

use of java.awt.image.ColorModel in project Lucee by lucee.

the class Image method addBorder.

/**
 * add a border to image
 * @param thickness
 * @param color
 * @param borderType
 */
public void addBorder(int thickness, Color color, int borderType) throws ExpressionException {
    ColorModel cm = image().getColorModel();
    if (((cm instanceof IndexColorModel)) && (cm.hasAlpha()) && (!cm.isAlphaPremultiplied())) {
        image(paletteToARGB(image()));
        cm = image().getColorModel();
    }
    BufferedImage alpha = null;
    if ((cm.getNumComponents() > 3) && (cm.hasAlpha())) {
        alpha = getAlpha(image());
        image(removeAlpha(image()));
    }
    if (alpha != null) {
        ParameterBlock params1 = new ParameterBlock();
        params1.addSource(alpha);
        // left
        params1.add(thickness);
        // right
        params1.add(thickness);
        // top
        params1.add(thickness);
        // bottom
        params1.add(thickness);
        params1.add(new BorderExtenderConstant(new double[] { 255D }));
        RenderingHints hints = new RenderingHints(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
        hints.add(new RenderingHints(JAI.KEY_REPLACE_INDEX_COLOR_MODEL, Boolean.TRUE));
        alpha = JAI.create("border", params1, hints).getAsBufferedImage();
    }
    ParameterBlock params = new ParameterBlock();
    params.addSource(image());
    // left
    params.add(thickness);
    // right
    params.add(thickness);
    // top
    params.add(thickness);
    // bottom
    params.add(thickness);
    params.add(toBorderExtender(borderType, color));
    image(JAI.create("border", params).getAsBufferedImage());
    if (alpha != null) {
        image(addAlpha(image(), alpha, thickness, thickness));
    }
}

Example 50 with ColorModel

use of java.awt.image.ColorModel in project Lucee by lucee.

the class Image method hasAlpha.

/**
 * This method returns true if the specified image has transparent pixels
 * @param image
 * @return
 */
public static boolean hasAlpha(java.awt.Image image) {
    // If buffered image, the color model is readily available
    if (image instanceof BufferedImage) {
        BufferedImage bimage = (BufferedImage) image;
        return bimage.getColorModel().hasAlpha();
    }
    // Use a pixel grabber to retrieve the image's color model;
    // grabbing a single pixel is usually sufficient
    PixelGrabber pg = new PixelGrabber(image, 0, 0, 1, 1, false);
    try {
        pg.grabPixels();
    } catch (InterruptedException e) {
    }
    // Get the image's color model
    ColorModel cm = pg.getColorModel();
    return cm.hasAlpha();
}