Method decrease

pixelart_backend/filters.py:161–171

(self, image: np.ndarray)

        return small

    def decrease(self, image: np.ndarray) -> np.ndarray:
        dst = image.copy()
        idx = np.where((0 <= image) & (64 > image))
        dst[idx] = 32
        idx = np.where((64 <= image) & (128 > image))
        dst[idx] = 96
        idx = np.where((128 <= image) & (192 > image))
        dst[idx] = 160
        idx = np.where((192 <= image) & (256 > image))
        dst[idx] = 224
        return dst


class GridMask: