Create blog21-image01.py

eastmountyxz · web-flow · commit acc160f60d44 · 2019-10-18T00:01:23.000+08:00
diff --git a/blog21-pyrDown/blog21-image01.py b/blog21-pyrDown/blog21-image01.py
@@ -0,0 +1,16 @@
+# -*- coding: utf-8 -*-
+import cv2  
+import numpy as np  
+import matplotlib.pyplot as plt
+
+#读取原始图像
+img = cv2.imread('people.png')
+
+#图像向下取样
+r = cv2.pyrDown(img)
+
+#显示图像
+cv2.imshow('original', img)
+cv2.imshow('PyrDown', r)
+cv2.waitKey()
+cv2.destroyAllWindows()
