'Find color with tolerance in bufferedimage

I'm writing a method that will attempt to find a color in a bufferedImage. At the moment, the method works by taking a screencap, and then scanning the image for a specific color. Now I'd like to add some RGB tolerence, so if the user is trying to find color (1, 3, 5) with tolerance 1, any color +-1 R, B or G will return true.

I could solve this by first generating a arrayList of RGB values that work, and then for each pixel I could go through the array and check with each value. The problem is that would probably get VERY slow for high tolerances on large images.

Is there a more efficient or possibly a built in way I can do this? Here is my method as it stands right now. Thank you!

public static Point findColor(Box searchArea, int color){
    System.out.println("Test");
    BufferedImage image = generateScreenCap(searchArea);
    for (int i = 0; i < image.getWidth(); i++) {
        for (int j = 0; j < image.getHeight(); j++) {
            if((image.getRGB(i, j)*-1)==color){
                return new Point(i + searchArea.x1, j + searchArea.y1);
            }
        }
    }
    return new Point(-1, -1);
}

Edit: I'm using the int RGB values for all comparisons, so instead of Color[1, 1, 1], I use Color.getRGB() which returns a negative int which I convert to positive for end user simplicity.



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