Create blog15-image01.py

eastmountyxz · web-flow · commit 78d5da4a7a04 · 2019-10-17T23:32:07.000+08:00
diff --git a/blog15-gray/blog15-image01.py b/blog15-gray/blog15-image01.py
@@ -0,0 +1,36 @@
+# -*- coding: utf-8 -*-
+import cv2  
+import numpy as np  
+import matplotlib.pyplot as plt
+
+#&#35835;&#21462;&#21407;&#22987;&#22270;&#20687;
+img = cv2.imread('miao.jpg')
+
+#&#22270;&#20687;&#28784;&#24230;&#36716;&#25442;
+grayImage = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
+
+#&#33719;&#21462;&#22270;&#20687;&#39640;&#24230;&#21644;&#23485;&#24230;
+height = grayImage.shape[0]
+width = grayImage.shape[1]
+
+#&#21019;&#24314;&#19968;&#24133;&#22270;&#20687;
+result = np.zeros((height, width), np.uint8)
+
+#&#22270;&#20687;&#28784;&#24230;&#19978;&#31227;&#21464;&#25442; DB=DA+50
+for i in range(height):
+    for j in range(width):
+        
+        if (int(grayImage[i,j]+50) > 255):
+            gray = 255
+        else:
+            gray = int(grayImage[i,j]+50)
+            
+        result[i,j] = np.uint8(gray)
+
+#&#26174;&#31034;&#22270;&#20687;
+cv2.imshow("Gray Image", grayImage)
+cv2.imshow("Result", result)
+
+#&#31561;&#24453;&#26174;&#31034;
+cv2.waitKey(0)
+cv2.destroyAllWindows()
