python: 'cv2.' -> 'cv.' via 'import cv2 as cv'

samples/python/browse.py

@@ -21,7 +21,7 @@ if PY3:
     xrange = range
 
 import numpy as np
-import cv2
+import cv2 as cv
 
 # built-in modules
 import sys
@@ -34,7 +34,7 @@ if __name__ == '__main__':
     if len(sys.argv) > 1:
         fn = sys.argv[1]
         print('loading %s ...' % fn)
-        img = cv2.imread(fn)
+        img = cv.imread(fn)
         if img is None:
             print('Failed to load fn:', fn)
             sys.exit(1)
@@ -45,21 +45,21 @@ if __name__ == '__main__':
         img = np.zeros((sz, sz), np.uint8)
         track = np.cumsum(np.random.rand(500000, 2)-0.5, axis=0)
         track = np.int32(track*10 + (sz/2, sz/2))
-        cv2.polylines(img, [track], 0, 255, 1, cv2.LINE_AA)
+        cv.polylines(img, [track], 0, 255, 1, cv.LINE_AA)
 
 
     small = img
     for i in xrange(3):
-        small = cv2.pyrDown(small)
+        small = cv.pyrDown(small)
 
     def onmouse(event, x, y, flags, param):
         h, _w = img.shape[:2]
         h1, _w1 = small.shape[:2]
         x, y = 1.0*x*h/h1, 1.0*y*h/h1
-        zoom = cv2.getRectSubPix(img, (800, 600), (x+0.5, y+0.5))
-        cv2.imshow('zoom', zoom)
+        zoom = cv.getRectSubPix(img, (800, 600), (x+0.5, y+0.5))
+        cv.imshow('zoom', zoom)
 
-    cv2.imshow('preview', small)
-    cv2.setMouseCallback('preview', onmouse)
-    cv2.waitKey()
-    cv2.destroyAllWindows()
+    cv.imshow('preview', small)
+    cv.setMouseCallback('preview', onmouse)
+    cv.waitKey()
+    cv.destroyAllWindows()