import numpy as np import skimage.color from PIL import Image import imageio.core.util imageio.core.util._precision_warn = lambda *args, **kwargs: None def color_enhance(arr, strength: float = 1) -> Image.Image: lch = skimage.color.lab2lch(lab=skimage.color.rgb2lab(rgb=np.array(arr, dtype=np.uint8))) lch[:, :, 1] *= 100/(lerp(100, lch[:, :, 1].max(), strength)) # Normalize chroma component return Image.fromarray(np.array(skimage.color.lab2rgb(lab=skimage.color.lch2lab(lch=lch)) * 255, dtype=np.uint8)) def lerp(a: float, b: float, t: float) -> float: return (1 - t) * a + t * b