Calculate average color of Android Bitmap

gistfile1.java

/*
pixelSpacing tells how many pixels to skip each pixel.
If pixelSpacing > 1: the average color is an estimate, but higher values mean better performance
If pixelSpacing == 1: the average color will be the real average
If pixelSpacing < 1: the method will most likely crash (don't use values below 1)
*/
public int calculateAverageColor(android.graphics.Bitmap bitmap, int pixelSpacing) {
	int R = 0; int G = 0; int B = 0;
	int height = bitmap.getHeight();
	int width = bitmap.getWidth();
	int n = 0;
	int[] pixels = new int[width * height];
	bitmap.getPixels(pixels, 0, width, 0, 0, width, height);
	for (int i = 0; i < pixels.length; i += pixelSpacing) {
		int color = pixels[i];
		R += Color.red(color);
		G += Color.green(color);
		B += Color.blue(color);
		n++;
	}
	return Color.rgb(R / n, G / n, B / n);
}