コード例 #1
0
 public void testModifyData() throws Exception {
   ImageData originalData = getImageData(Fixture.IMAGE1);
   Image image = ResourceFactory.findImage(originalData);
   cache.putImageData(image, originalData);
   ImageData copyData1 = cache.getImageData(image);
   assertNotSame(originalData, copyData1);
   assertEqualsImageData(originalData, copyData1);
   // modify original data
   originalData.setPixel(0, 0, 23);
   ImageData copyData2 = cache.getImageData(image);
   assertNotSame(copyData1, copyData2);
   assertEqualsImageData(copyData1, copyData2);
 }
コード例 #2
0
  @Override
  public Image run(Image input, int imageType) {

    ImageData inData = input.getImageData(); // Die echten Bilddaten sind hier drin

    // RGB zu YUV Umwandlungsmatrix
    //		double[] linear_conversion = {
    //			0.2126, 0.7152, 0.0722,
    //			-0.09991, -0.33609, 0.436,
    //			0.615, -0.55861, -0.05639
    //		};
    double[] linear_conversion = {0.299, 0.587, 0.114, -0.147, -0.289, 0.436, 0.615, -0.515, -0.1};
    Matrix m = new Matrix(3, 3, linear_conversion);

    // YUV zu RGB Umwandlungmatrix (das Inverse)
    //		double[] inv_linear_conversion = {
    //		    1.0000,    0.0000,    1.28033,
    //		    1.0000,   -0.21482,   -0.38059,
    //		    1.0000,    2.12798,   -0.0005
    //		};
    double[] inv_linear_conversion = {
      1.0000, 0.0000, 1.1398, 1.0000, -0.3946, -0.5805, 1.0000, 2.0320, -0.0005
    };
    Matrix minv = new Matrix(3, 3, inv_linear_conversion);

    for (int v = 0; v < inData.height; v++) {
      for (int u = 0; u < inData.width; u++) {
        int pixel = inData.getPixel(u, v);

        RGB rgb = inData.palette.getRGB(pixel);

        // Variante mit Farbwerte U und V von YUV auf 0 setzen
        Vector r = new Vector(rgb.red, rgb.green, rgb.blue);
        double[] y = m.times(r).getV();
        y[2] = 0;
        y[1] = 0;
        r = minv.times(new Vector(y));
        rgb.red = (int) r.x(1);
        rgb.green = (int) r.x(2);
        rgb.blue = (int) r.x(3);

        if (rgb.red < 0) rgb.red = 0;
        else if (rgb.red > 255) rgb.red = 255;

        if (rgb.green < 0) rgb.green = 0;
        else if (rgb.green > 255) rgb.green = 255;

        if (rgb.blue < 0) rgb.blue = 0;
        else if (rgb.blue > 255) rgb.blue = 255;

        // Variante mit der Sättigung auf 0 gesetzt (schlechter)
        //				float[] hsb = inData.palette.getRGB(pixel).getHSB();
        //
        //				hsb[1] = 0; //Sättigung auf 0 setzen
        //
        //				Color c = new Color(Color.HSBtoRGB(hsb[0],hsb[1],hsb[2]));
        //				RGB rgb = new RGB(0,0,0);
        //				rgb.red = c.getRed();
        //				rgb.green = c.getGreen();
        //				rgb.blue = c.getBlue();

        inData.setPixel(u, v, inData.palette.getPixel(rgb));
      }
    }
    return new Image(input.getDevice(), inData);
  }