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

Example 71 with PixelGrabber

use of java.awt.image.PixelGrabber in project astroimagej by AstroImageJ.

the class AstroStackWindow method hasAlpha.

// This method returns true if the specified image has transparent pixels
public static boolean hasAlpha(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();
}

Example 72 with PixelGrabber

use of java.awt.image.PixelGrabber in project astroimagej by AstroImageJ.

the class ImagePlus method getPixel.

/**
 *	Returns the pixel value at (x,y) as a 4 element array. Grayscale values
 *	are retuned in the first element. RGB values are returned in the first
 *	3 elements. For indexed color images, the RGB values are returned in the
 *	first 3 three elements and the index (0-255) is returned in the last.
 */
public int[] getPixel(int x, int y) {
    pvalue[0] = pvalue[1] = pvalue[2] = pvalue[3] = 0;
    switch(imageType) {
        case GRAY8:
        case COLOR_256:
            int index;
            if (ip != null)
                index = ip.getPixel(x, y);
            else {
                byte[] pixels8;
                if (img == null)
                    return pvalue;
                PixelGrabber pg = new PixelGrabber(img, x, y, 1, 1, false);
                try {
                    pg.grabPixels();
                } catch (InterruptedException e) {
                    return pvalue;
                }
                ;
                pixels8 = (byte[]) (pg.getPixels());
                index = pixels8 != null ? pixels8[0] & 0xff : 0;
            }
            if (imageType != COLOR_256) {
                pvalue[0] = index;
                return pvalue;
            }
            pvalue[3] = index;
        // fall through to get rgb values
        case COLOR_RGB:
            if (ip != null && ip.getNChannels() == 1) {
                pvalue[0] = ip.getPixel(x, y);
                return pvalue;
            }
            int c = 0;
            if (imageType == COLOR_RGB && ip != null)
                c = ip.getPixel(x, y);
            else {
                int[] pixels32 = new int[1];
                if (img == null)
                    return pvalue;
                PixelGrabber pg = new PixelGrabber(img, x, y, 1, 1, pixels32, 0, width);
                try {
                    pg.grabPixels();
                } catch (InterruptedException e) {
                    return pvalue;
                }
                ;
                c = pixels32[0];
            }
            int r = (c & 0xff0000) >> 16;
            int g = (c & 0xff00) >> 8;
            int b = c & 0xff;
            pvalue[0] = r;
            pvalue[1] = g;
            pvalue[2] = b;
            break;
        case GRAY16:
        case GRAY32:
            if (ip != null)
                pvalue[0] = ip.getPixel(x, y);
            break;
    }
    return pvalue;
}

Example 73 with PixelGrabber

use of java.awt.image.PixelGrabber in project HO by akasolace.

the class PluginIfaUtils method getPixels.

private static int[][] getPixels(Image image) throws IOException {
    int w = image.getWidth(null);
    int h = image.getHeight(null);
    int[] pix = new int[w * h];
    PixelGrabber grabber = new PixelGrabber(image, 0, 0, w, h, pix, 0, w);
    try {
        if (!grabber.grabPixels())
            throw new IOException("Grabber returned false: " + grabber.status());
    } catch (InterruptedException e) {
        e.printStackTrace();
    }
    int[][] pixels = new int[w][h];
    for (int x = w; x-- > 0; ) {
        for (int y = h; y-- > 0; ) {
            pixels[x][y] = pix[(y * w + x)];
        }
    }
    return pixels;
}

Example 74 with PixelGrabber

use of java.awt.image.PixelGrabber in project platform by lsfusion.

the class SerializableImageIconHolder method writeObject.

private void writeObject(ObjectOutputStream s) throws IOException {
    s.writeObject(imagePath);
    s.writeInt(images.size());
    for (Map.Entry<ColorTheme, ImageIcon> imagesEntry : images.entrySet()) {
        ImageIcon image = imagesEntry.getValue();
        s.writeBoolean(image != null);
        if (image != null) {
            s.writeObject(imagesEntry.getKey());
            int w = image.getIconWidth();
            int h = image.getIconHeight();
            int[] pixels = image.getImage() != null ? new int[w * h] : null;
            if (image.getImage() != null) {
                try {
                    PixelGrabber pg = new PixelGrabber(image.getImage(), 0, 0, w, h, pixels, 0, w);
                    pg.grabPixels();
                    if ((pg.getStatus() & ImageObserver.ABORT) != 0) {
                        throw new IOException("failed to load image contents");
                    }
                } catch (InterruptedException e) {
                    throw new IOException("image load interrupted");
                }
            }
            s.writeInt(w);
            s.writeInt(h);
            s.writeObject(pixels);
        }
    }
}

Example 75 with PixelGrabber

use of java.awt.image.PixelGrabber in project client by DarkanRS.

the class Class194 method method3179.

void method3179(AbstractRenderer graphicalrenderer_1, Font font_2, java.awt.FontMetrics fontmetrics_3, char var_4, int i_5, boolean bool_6) {
    boolean bool_61 = bool_6;
    int i_7 = fontmetrics_3.charWidth(var_4);
    int i_8 = i_7;
    if (bool_61) {
        try {
            if (var_4 == 47) {
                bool_61 = false;
            }
            if (var_4 == 102 || var_4 == 116 || var_4 == 119 || var_4 == 118 || var_4 == 107 || var_4 == 120 || var_4 == 121 || var_4 == 65 || var_4 == 86 || var_4 == 87) {
                ++i_7;
            }
        } catch (Exception ignored) {
        }
    }
    int i_21 = fontmetrics_3.getMaxAscent();
    int i_10 = fontmetrics_3.getMaxAscent() + fontmetrics_3.getMaxDescent();
    int i_11 = fontmetrics_3.getHeight();
    Image image_12 = Class351.gameCanvas.createImage(i_7, i_10);
    Graphics graphics_13 = image_12.getGraphics();
    graphics_13.setColor(Color.black);
    graphics_13.fillRect(0, 0, i_7, i_10);
    graphics_13.setColor(Color.white);
    graphics_13.setFont(font_2);
    graphics_13.drawString(var_4 + "", 0, i_21);
    if (bool_61) {
        graphics_13.drawString(var_4 + "", 1, i_21);
    }
    int[] ints_14 = new int[i_7 * i_10];
    PixelGrabber pixelgrabber_15 = new PixelGrabber(image_12, 0, 0, i_7, i_10, ints_14, 0, i_7);
    try {
        pixelgrabber_15.grabPixels();
    } catch (Exception ignored) {
    }
    image_12.flush();
    Object obj_16 = null;
    int i_17 = 0;
    int i_18;
    label66: for (i_18 = 0; i_18 < i_10; i_18++) {
        for (int i_19 = 0; i_19 < i_7; i_19++) {
            int i_20 = ints_14[i_19 + i_18 * i_7];
            if ((i_20 & 0xffffff) != 0) {
                i_17 = i_18;
                break label66;
            }
        }
    }
    for (i_18 = 0; i_18 < ints_14.length; i_18++) {
        if ((ints_14[i_18] & 0xffffff) == 0) {
            ints_14[i_18] = 0;
        }
    }
    anInt2407 = i_21 - i_17;
    anInt2408 = i_11;
    anIntArray2403[i_5] = i_8;
    aNativeSpriteArray2405[i_5] = graphicalrenderer_1.createNativeSprite(ints_14, i_7, i_7, i_10);
}