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Android/Java code to calculate the average color of an image

private int calculateAverageColor (android.graphics.Bitmap bitmap1, int pixelSpacing) { int R = 0; int G = 0; int B = 0; int n = 0; int res = 1; if (bitmap1 != null) { int height = bitmap1.getHeight(); int width = bitmap1.getWidth(); int[] pixels = new int[width * height]; bitmap1.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++; } res = Color.rgb(R / n, G / n, B / n); } return res; }
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