Function bitget

utils/utils.py:87–88

(byteval, idx)

def color_map(n: int = 256, normalized: bool = False):
    def bitget(byteval, idx):
        return (byteval & (1 << idx)) != 0

    dtype = 'float32' if normalized else 'uint8'
    cmap = np.zeros((n, 3), dtype=dtype)