python中图像的对数对比度增强

import cv2
import numpy as np
import matplotlib.pyplot as plt

image = cv2.imread('image.jpg', 0)

c = 1  # 对数变换的参数，可根据需要调整
enhanced_image = c * np.log(1 + image)

enhanced_image = cv2.normalize(enhanced_image, None, 0, 255, cv2.NORM_MINMAX, dtype=cv2.CV_8U)

plt.subplot(121), plt.imshow(image, cmap='gray'), plt.title('Original Image')
plt.subplot(122), plt.imshow(enhanced_image, cmap='gray'), plt.title('Enhanced Image')
plt.show()