quantize method
Implementation
@override
QuantizerResult quantize(List<int> pixels, int maxColors) {
final pixelByCount = <int, int>{};
for (final pixel in pixels) {
pixelByCount.update(
pixel,
(currentPixelCount) => currentPixelCount + 1,
ifAbsent: () => 1,
);
}
return QuantizerResult(colorToCount: pixelByCount);
}