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

Example 41 with BufferedImage

use of java.awt.image.BufferedImage in project libgdx by libgdx.

the class DistanceFieldGenerator method generateDistanceField.

/**
	 * Process the image into a distance field.
	 * 
	 * The input image should be binary (black/white), but if not, see {@link #isInside(int)}.
	 *  
	 * The returned image is a factor of {@code upscale} smaller than {@code inImage}.
	 * Opaque pixels more than {@link #spread} away in the output image from white remain opaque;
	 * transparent pixels more than {@link #spread} away in the output image from black remain transparent.
	 * In between, we get a smooth transition from opaque to transparent, with an alpha value of 0.5
	 * when we are exactly on the edge.
	 * 
	 * @param inImage the image to process. 
	 * @return the distance field image
	 */
public BufferedImage generateDistanceField(BufferedImage inImage) {
    final int inWidth = inImage.getWidth();
    final int inHeight = inImage.getHeight();
    final int outWidth = inWidth / downscale;
    final int outHeight = inHeight / downscale;
    final BufferedImage outImage = new BufferedImage(outWidth, outHeight, BufferedImage.TYPE_4BYTE_ABGR);
    // Note: coordinates reversed to mimic storage of BufferedImage, for memory locality
    final boolean[][] bitmap = new boolean[inHeight][inWidth];
    for (int y = 0; y < inHeight; ++y) {
        for (int x = 0; x < inWidth; ++x) {
            bitmap[y][x] = isInside(inImage.getRGB(x, y));
        }
    }
    for (int y = 0; y < outHeight; ++y) {
        for (int x = 0; x < outWidth; ++x) {
            int centerX = (x * downscale) + (downscale / 2);
            int centerY = (y * downscale) + (downscale / 2);
            float signedDistance = findSignedDistance(centerX, centerY, bitmap);
            outImage.setRGB(x, y, distanceToRGB(signedDistance));
        }
    }
    return outImage;
}

Example 42 with BufferedImage

use of java.awt.image.BufferedImage in project libgdx by libgdx.

the class PreAlpha method generatePremultiplyAlpha.

private void generatePremultiplyAlpha(File out) {
    try {
        BufferedImage outImage = new BufferedImage(image.getWidth(), image.getHeight(), BufferedImage.TYPE_INT_ARGB);
        float[] color = new float[4];
        WritableRaster raster = image.getRaster();
        WritableRaster outRaster = outImage.getRaster();
        for (int x = 0, w = image.getWidth(); x < w; ++x) for (int y = 0, h = image.getHeight(); y < h; ++y) {
            raster.getPixel(x, y, color);
            float alpha = color[3] / 255f;
            for (int i = 0; i < 3; ++i) color[i] *= alpha;
            outRaster.setPixel(x, y, color);
        }
        ImageIO.write(outImage, "png", out);
    } catch (IOException e) {
        e.printStackTrace();
    }
}

Example 43 with BufferedImage

use of java.awt.image.BufferedImage in project libgdx by libgdx.

the class Hiero method getColorIcon.

static Icon getColorIcon(java.awt.Color color) {
    BufferedImage image = new BufferedImage(32, 16, BufferedImage.TYPE_INT_RGB);
    java.awt.Graphics g = image.getGraphics();
    g.setColor(color);
    g.fillRect(1, 1, 30, 14);
    g.setColor(java.awt.Color.black);
    g.drawRect(0, 0, 31, 15);
    return new ImageIcon(image);
}

Example 44 with BufferedImage

use of java.awt.image.BufferedImage in project libgdx by libgdx.

the class ImagePacker method main.

public static void main(String[] argv) throws IOException {
    Random rand = new Random(0);
    ImagePacker packer = new ImagePacker(512, 512, 1, true);
    BufferedImage[] images = new BufferedImage[100];
    for (int i = 0; i < images.length; i++) {
        Color color = new Color((float) Math.random(), (float) Math.random(), (float) Math.random(), 1);
        images[i] = createImage(rand.nextInt(50) + 10, rand.nextInt(50) + 10, color);
    }
    // BufferedImage[] images = { ImageIO.read( new File( "test.png" ) ) };
    Arrays.sort(images, new Comparator<BufferedImage>() {

        @Override
        public int compare(BufferedImage o1, BufferedImage o2) {
            return o2.getWidth() * o2.getHeight() - o1.getWidth() * o1.getHeight();
        }
    });
    for (int i = 0; i < images.length; i++) packer.insertImage("" + i, images[i]);
    ImageIO.write(packer.getImage(), "png", new File("packed.png"));
}

Example 45 with BufferedImage

use of java.awt.image.BufferedImage in project libgdx by libgdx.

the class ImagePacker method createImage.

private static BufferedImage createImage(int width, int height, Color color) {
    BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_4BYTE_ABGR);
    Graphics2D g = image.createGraphics();
    g.setColor(color);
    g.fillRect(0, 0, width, height);
    g.dispose();
    return image;
}