Example usage for java.awt.image BufferedImage getRGB

Introduction

In this page you can find the example usage for java.awt.image BufferedImage getRGB.

Prototype

public int getRGB(int x, int y) 

Source Link

Document

Returns an integer pixel in the default RGB color model (TYPE_INT_ARGB) and default sRGB colorspace.

Usage

From source file:de._13ducks.cor.graphics.GraphicsComponent.java

public static BufferedImage grayScale(BufferedImage im) {
    // Verwandelt ein Bild ein eine Grayscale-Version, behlt aber die Transparenz
    BufferedImage grayImage = new BufferedImage(im.getWidth(), im.getHeight(), BufferedImage.TYPE_INT_ARGB);

    for (int x = 0; x < im.getWidth(); x++) {
        for (int y = 0; y < im.getHeight(); y++) {
            int argb = im.getRGB(x, y);
            int a = (argb >> 24) & 0xff;
            int r = (argb >> 16) & 0xff;
            int g = (argb >> 8) & 0xff;
            int b = (argb) & 0xff;
            int l = (int) (.299 * r + .587 * g + .114 * b); //luminance
            grayImage.setRGB(x, y, (a << 24) + (l << 16) + (l << 8) + l);
        }//from  www . ja v a 2  s  .  c o m

    }
    return grayImage;
}

---

From source file:net.rptools.lib.image.ImageUtil.java

public static BufferedImage createOutline(BufferedImage sourceImage, Color color) {
    if (sourceImage == null) {
        return null;
    }/*  w  ww  . ja  va2s. c  o m*/
    BufferedImage image = new BufferedImage(sourceImage.getWidth() + 2, sourceImage.getHeight() + 2,
            Transparency.BITMASK);

    for (int row = 0; row < image.getHeight(); row++) {
        for (int col = 0; col < image.getWidth(); col++) {
            int sourceX = col - 1;
            int sourceY = row - 1;

            // Pixel under current location
            if (sourceX >= 0 && sourceY >= 0 && sourceX <= sourceImage.getWidth() - 1
                    && sourceY <= sourceImage.getHeight() - 1) {
                int sourcePixel = sourceImage.getRGB(sourceX, sourceY);
                if (sourcePixel >> 24 != 0) {
                    // Not an empty pixel, don't overwrite it
                    continue;
                }
            }
            for (int i = 0; i < outlineNeighborMap.length; i++) {
                int[] neighbor = outlineNeighborMap[i];
                int x = sourceX + neighbor[0];
                int y = sourceY + neighbor[1];

                if (x >= 0 && y >= 0 && x <= sourceImage.getWidth() - 1 && y <= sourceImage.getHeight() - 1) {
                    if ((sourceImage.getRGB(x, y) >> 24) != 0) {
                        image.setRGB(col, row, color.getRGB());
                        break;
                    }
                }
            }
        }
    }
    return image;
}

---

From source file:it.units.malelab.ege.util.DUMapper.java

private static void modifyMap(String fileName, float bins) throws IOException {
    Color[][] colorMap = new Color[3][];
    colorMap[0] = new Color[] { fromCode("000000"), fromCode("b36600"), fromCode("f3b300") };
    colorMap[1] = new Color[] { fromCode("376387"), fromCode("b3b3b3"), fromCode("f3e6b3") };
    colorMap[2] = new Color[] { fromCode("509dc2"), fromCode("b4d3e1"), fromCode("f3f3f3") };
    BufferedImage inImage = ImageIO.read(new File(fileName));
    BufferedImage outRGDImage = new BufferedImage(inImage.getWidth(), inImage.getHeight(),
            BufferedImage.TYPE_INT_ARGB);
    BufferedImage outCMImage = new BufferedImage(inImage.getWidth(), inImage.getHeight(),
            BufferedImage.TYPE_INT_ARGB);
    for (int x = 0; x < inImage.getWidth(); x++) {
        for (int y = 0; y < inImage.getHeight(); y++) {
            Color inColor = new Color(inImage.getRGB(x, y));
            Color outColor = new Color(
                    Math.min((float) Math.floor((float) inColor.getRed() / 255f * bins) / (bins - 1), 1f),
                    Math.min((float) Math.floor((float) inColor.getGreen() / 255f * bins) / (bins - 1), 1f), 0);
            outRGDImage.setRGB(x, y, outColor.getRGB());
            int cmRIndex = (int) Math.min((int) Math.floor((float) inColor.getRed() / 255f * 3), 2);
            int cmGIndex = (int) Math.min((int) Math.floor((float) inColor.getGreen() / 255f * 3), 2);
            outColor = colorMap[cmRIndex][cmGIndex];
            outCMImage.setRGB(x, y, outColor.getRGB());
        }//  w w w . j  a  va  2 s.c  o  m
    }
    ImageIO.write(outRGDImage, "PNG",
            new File(fileName.replace(".png", String.format(".rgbdisc%d.png", (int) bins))));
    ImageIO.write(outCMImage, "PNG", new File(fileName.replace(".png", ".cm.png")));
}

---

From source file:com.t3.image.ImageUtil.java

public static BufferedImage createOutline(BufferedImage sourceImage, Color color) {
    if (sourceImage == null) {
        return null;
    }/*from   ww  w.j  ava  2  s  .  c  o m*/

    BufferedImage image = new BufferedImage(sourceImage.getWidth() + 2, sourceImage.getHeight() + 2,
            Transparency.BITMASK);

    for (int row = 0; row < image.getHeight(); row++) {
        for (int col = 0; col < image.getWidth(); col++) {

            int sourceX = col - 1;
            int sourceY = row - 1;

            // Pixel under current location
            if (sourceX >= 0 && sourceY >= 0 && sourceX <= sourceImage.getWidth() - 1
                    && sourceY <= sourceImage.getHeight() - 1) {
                int sourcePixel = sourceImage.getRGB(sourceX, sourceY);
                if (sourcePixel >> 24 != 0) {
                    // Not an empty pixel, don't overwrite it
                    continue;
                }
            }

            for (int i = 0; i < outlineNeighborMap.length; i++) {
                int[] neighbor = outlineNeighborMap[i];
                int x = sourceX + neighbor[0];
                int y = sourceY + neighbor[1];

                if (x >= 0 && y >= 0 && x <= sourceImage.getWidth() - 1 && y <= sourceImage.getHeight() - 1) {
                    if ((sourceImage.getRGB(x, y) >> 24) != 0) {
                        image.setRGB(col, row, color.getRGB());
                        break;
                    }

                }
            }
        }
    }

    return image;
}

---

From source file:gr.iti.mklab.reveal.forensics.util.Util.java

public static float[][][] getImageDifference(BufferedImage image1, BufferedImage image2) {
    Color tmpColor1, tmpColor2;//from   w  w w  .j av  a 2 s .co m
    int width = image1.getWidth();
    int height = image1.getHeight();
    float[][][] outputMap = new float[3][width][height];
    for (int ii = 0; ii < width; ii++) {
        for (int jj = 0; jj < height; jj++) {
            tmpColor1 = new Color(image1.getRGB(ii, jj));
            tmpColor2 = new Color(image2.getRGB(ii, jj));
            outputMap[0][ii][jj] = (float) (tmpColor1.getRed() - tmpColor2.getRed())
                    * (tmpColor1.getRed() - tmpColor2.getRed());
            outputMap[1][ii][jj] = (float) (tmpColor1.getGreen() - tmpColor2.getGreen())
                    * (tmpColor1.getGreen() - tmpColor2.getGreen());
            outputMap[2][ii][jj] = (float) (tmpColor1.getBlue() - tmpColor2.getBlue())
                    * (tmpColor1.getBlue() - tmpColor2.getBlue());
        }
    }
    return outputMap;
}

---

From source file:gr.iti.mklab.reveal.forensics.util.Util.java

public static double[][][] getImageDifferenceD(BufferedImage image1, BufferedImage image2) {
    Color tmpColor1, tmpColor2;/*  www .ja  v  a  2  s .  c  o m*/
    int width = image1.getWidth();
    int height = image1.getHeight();
    double red_temp, green_temp, blue_temp;

    double[][][] outputMap = new double[3][width][height];
    for (int ii = 0; ii < width; ii++) {
        for (int jj = 0; jj < height; jj++) {
            tmpColor1 = new Color(image1.getRGB(ii, jj));
            tmpColor2 = new Color(image2.getRGB(ii, jj));
            red_temp = tmpColor1.getRed() - tmpColor2.getRed();
            green_temp = tmpColor1.getGreen() - tmpColor2.getGreen();
            blue_temp = tmpColor1.getBlue() - tmpColor2.getBlue();
            outputMap[0][ii][jj] = (double) (red_temp) * (red_temp);
            outputMap[1][ii][jj] = (double) (green_temp) * (green_temp);
            outputMap[2][ii][jj] = (double) (blue_temp) * (blue_temp);
        }
    }
    return outputMap;
}

---

From source file:pdi.HistogramaRGB.java

public int[] pegaPixels(File file) {
    BufferedImage img = pegaImagem();
    int[] rgb = new int[w * h];

    for (int i = 0; i < w; i++)
        for (int j = 0; j < h; j++) {
            rgb[i * j] = img.getRGB(i, j);
        }//from   w w  w  .  jav  a2s . c om

    for (int i = 0; i < rgb.length; i++) {
        Color c = new Color(rgb[i]);
        System.out.println("Vermelho: " + c.getRed());
    }
    for (int i = 0; i < rgb.length; i++) {
        Color c = new Color(rgb[i]);
        System.out.println("Vermelho: " + c.getGreen());
    }
    for (int i = 0; i < rgb.length; i++) {
        Color c = new Color(rgb[i]);
        System.out.println("Vermelho: " + c.getBlue());
    }

    return rgb;
}

---

From source file:DBScan.java

private double minDistance(int x, int y, BufferedImage img1, BufferedImage img2) {
    if (!(x < img1.getWidth() && y < img1.getHeight()))
        return 0;

    int colour = img1.getRGB(x, y);

    //        if (colour != Image.BLACK)
    //            return 0;

    if (x < img2.getWidth() && y < img2.getHeight() && img2.getRGB(x, y) == colour)
        return 0;

    int distance = 6;
    final int RANGE = 1;

    for (int x1 = x - RANGE; x1 <= x + RANGE; x1++) {
        if (distance == 1)
            break;

        if (x1 < 0 || x1 >= img2.getWidth())
            continue;

        for (int y1 = y - (x1 - x); y1 <= y + RANGE; y1++) {
            if (y1 >= 0 && y1 < img2.getHeight() && img2.getRGB(x1, y1) == colour) {
                distance = Math.min(distance, Math.min(Math.abs(x - x1), Math.abs(y - y1)));
            }//ww  w.  j a v a2s  .com
        }
    }

    return (distance * distance) / 2;
}

---

From source file:gr.iti.mklab.reveal.forensics.util.Util.java

public static int[][][] getRGBArray(BufferedImage imageIn) {
    // possible 10-fold speed increase in:
    // http://stackoverflow.com/questions/6524196/java-get-pixel-array-from-image
    // (but ensure all major bases are covered)
    int ImW = imageIn.getWidth();
    int ImH = imageIn.getHeight();
    Color tmpColor;//from   w w w  .ja v  a2s  . co  m
    int[][][] rgbValues = new int[3][ImW][ImH];

    for (int ii = 0; ii < ImW; ii++) {
        for (int jj = 0; jj < ImH; jj++) {
            tmpColor = new Color(imageIn.getRGB(ii, jj));
            rgbValues[0][ii][jj] = tmpColor.getRed();
            rgbValues[1][ii][jj] = tmpColor.getGreen();
            rgbValues[2][ii][jj] = tmpColor.getBlue();
        }
    }
    return rgbValues;
}

---

From source file:cpcc.ros.services.RosImageConverterTest.java

/**
 * @param image the image to be checked.
 *///w  w w  .java2s .co m
private void assertThatImageIsEmpty(BufferedImage image) {
    for (int y = 0; y < image.getHeight(); ++y) {
        for (int x = 0; x < image.getWidth(); ++x) {
            assertThat(image.getRGB(x, y)).overridingErrorMessage("Problem at x=%d, y=%d", x, y).isEqualTo(0);
        }
    }
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• »