getBlackest static method
Implementation
static int getBlackest(List<int> grayscaleRgba) {
int value = 255;
for (int i = 0, len = grayscaleRgba.length; i < len; i += 4) {
if (grayscaleRgba[i] < value) value = grayscaleRgba[i];
}
return value;
}