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eastmountyxz · web-flow · commit 0b43edfab611 · 2021-03-13T20:03:05.000+08:00
diff --git a/blog38-ImageEnhancement/blog38-03.py b/blog38-ImageEnhancement/blog38-03.py
@@ -0,0 +1,35 @@
+# -*- coding: utf-8 -*-
+# By:Eastmount CSDN 2021-03-12
+import cv2  
+import numpy as np  
+import matplotlib.pyplot as plt
+
+#读取图片
+img = cv2.imread('yxz.jpg')
+
+# 彩色图像均衡化 需要分解通道 对每一个通道均衡化
+(b, g, r) = cv2.split(img)
+bH = cv2.equalizeHist(b)
+gH = cv2.equalizeHist(g)
+rH = cv2.equalizeHist(r)
+
+# 合并每一个通道
+result = cv2.merge((bH, gH, rH))
+cv2.imshow("Input", img)
+cv2.imshow("Result", result)
+
+#等待显示
+cv2.waitKey(0)
+cv2.destroyAllWindows()
+
+#绘制直方图
+plt.figure("Hist")
+#蓝色分量
+plt.hist(bH.ravel(), bins=256, normed=1, facecolor='b', edgecolor='b')
+#绿色分量
+plt.hist(gH.ravel(), bins=256, normed=1, facecolor='g', edgecolor='g')
+#红色分量
+plt.hist(rH.ravel(), bins=256, normed=1, facecolor='r', edgecolor='r')
+plt.xlabel("x")
+plt.ylabel("y")
+plt.show()
