![](https://img-blog.csdnimg.cn/20200207154922960.PNG?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM2MDcxMzYy,size_16,color_FFFFFF,t_70)
import cv2
import numpy as np
img = cv2.imread('pic1.png', 0)
# 进行直方图均衡化
equ = cv2.equalizeHist(img)
# CLAHE有限对比适应性直方图均衡化---作用,限制对比度下降
clahe = cv2.createCLAHE(clipLimit=2.0, tileGridSize=(8, 8))
cl1 = clahe.apply(img)
# 将三幅图像拼接在一起
res = np.hstack((img, equ, cl1))
cv2.imshow('img', res)
cv2.waitKey(0)
cv2.destroyAllWindows()