gistfile1.java

private void sepiaImage(int[] origPixels, int[] pixels, int width, int height)
		{
			for (int y=0; y<height; y++) {
				for (int x=0; x<width; x++) {
					int pos = y*width + x;
					int argb = origPixels[pos];  // Lesen der Originalwerte 
		
					int r = (argb >> 16) & 0xff;
					int g = (argb >>  8) & 0xff;
					int b =  argb        & 0xff;
					
					int gamma = (r+g+b)/3;
					
					r = gamma + 30;
					g = gamma + 10;
					b = gamma - 10;
					
					if (r > 255) {
						r = 255;
					}
					if (g > 255) {
						g = 255;
					}
					if (b < 0) {
						b = 0;
					}
					
					int rn = r;
					int gn = g;
					int bn = b;
					pixels[pos] = (0xFF<<24) | (rn<<16) | (gn<<8) | bn;
				}
			}		
		}