retinex算法求亮度分量python代码

以下是 retinex 算法求亮度分量的 Python 代码：

import cv2
import numpy as np

def retinex(img, sigma_list):
    retinex_img = np.zeros_like(img)
    for sigma in sigma_list:
        img_blur = cv2.GaussianBlur(img, (, ), sigma)
        img_blur = np.where(img_blur == , .1, img_blur)
        retinex = np.log10(img) - np.log10(img_blur)
        retinex_img += retinex
    retinex_img = retinex_img / len(sigma_list)
    return retinex_img

img = cv2.imread('image.jpg')
img = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
sigma_list = [15, 80, 250]
retinex_img = retinex(img, sigma_list)
cv2.imwrite('retinex.jpg', retinex_img)

希望能对您有所帮助。