// Utilisé pour réécrire chaque pixel d'une image.
//
// Used to rewrite each pixel of an image.
public static Bitmap fixLimitedColor(Bitmap bitmap) {
		int redValue = 0;
		int blueValue = 0;
		int greenValue = 0;

		int pixel = 0;
		for (int i = 0; i < bitmap.getHeight() - 1; i++) {
				for (int j = 0; j < bitmap.getWidth() - 1; j++) {
						pixel = bitmap.getPixel(j, i);
						redValue = Color.red(pixel);
						blueValue = Color.blue(pixel);
						greenValue = Color.green(pixel);

						redValue = fixValue(redValue);
						blueValue = fixValue(blueValue);
						greenValue = fixValue(greenValue);

						bitmap.setPixel(j, i, Color.rgb(redValue, greenValue, blueValue));
				}
		}

		return bitmap;
}

// Ecreteur de valeur, chaque couleur ne peux plus avoir que 5 valeur différentes.
// Ce qui donne un total d'environs 125 valeur de couleur diffentes (RGB)
//
// Value scaler, each color can only have 5 different value.
// Which is giving a total of 125 uniques color in RGB.
private static int fixValue(int colorValue) {
		int minTol = 10;
		int min = 0;
		int max = 255;
		int medium = 128;
		int quarter = 64;

		if (colorValue < quarter) {
				colorValue = min;
		} else if (colorValue < medium) {
				colorValue = quarter;
		} else if (colorValue < medium + quarter) {
				colorValue = medium;
		} else if (colorValue < max - minTol) {
				colorValue = medium + quarter;
		} else {
				colorValue = max;
		}

		return colorValue;
}