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

samples/python/floodfill.py

@@ -18,7 +18,7 @@ Keys:
 from __future__ import print_function
 
 import numpy as np
-import cv2
+import cv2 as cv
 
 if __name__ == '__main__':
     import sys
@@ -28,7 +28,7 @@ if __name__ == '__main__':
         fn = '../data/fruits.jpg'
     print(__doc__)
 
-    img = cv2.imread(fn, True)
+    img = cv.imread(fn, True)
     if img is None:
         print('Failed to load image file:', fn)
         sys.exit(1)
@@ -41,32 +41,32 @@ if __name__ == '__main__':
 
     def update(dummy=None):
         if seed_pt is None:
-            cv2.imshow('floodfill', img)
+            cv.imshow('floodfill', img)
             return
         flooded = img.copy()
         mask[:] = 0
-        lo = cv2.getTrackbarPos('lo', 'floodfill')
-        hi = cv2.getTrackbarPos('hi', 'floodfill')
+        lo = cv.getTrackbarPos('lo', 'floodfill')
+        hi = cv.getTrackbarPos('hi', 'floodfill')
         flags = connectivity
         if fixed_range:
-            flags |= cv2.FLOODFILL_FIXED_RANGE
-        cv2.floodFill(flooded, mask, seed_pt, (255, 255, 255), (lo,)*3, (hi,)*3, flags)
-        cv2.circle(flooded, seed_pt, 2, (0, 0, 255), -1)
-        cv2.imshow('floodfill', flooded)
+            flags |= cv.FLOODFILL_FIXED_RANGE
+        cv.floodFill(flooded, mask, seed_pt, (255, 255, 255), (lo,)*3, (hi,)*3, flags)
+        cv.circle(flooded, seed_pt, 2, (0, 0, 255), -1)
+        cv.imshow('floodfill', flooded)
 
     def onmouse(event, x, y, flags, param):
         global seed_pt
-        if flags & cv2.EVENT_FLAG_LBUTTON:
+        if flags & cv.EVENT_FLAG_LBUTTON:
             seed_pt = x, y
             update()
 
     update()
-    cv2.setMouseCallback('floodfill', onmouse)
-    cv2.createTrackbar('lo', 'floodfill', 20, 255, update)
-    cv2.createTrackbar('hi', 'floodfill', 20, 255, update)
+    cv.setMouseCallback('floodfill', onmouse)
+    cv.createTrackbar('lo', 'floodfill', 20, 255, update)
+    cv.createTrackbar('hi', 'floodfill', 20, 255, update)
 
     while True:
-        ch = cv2.waitKey()
+        ch = cv.waitKey()
         if ch == 27:
             break
         if ch == ord('f'):
@@ -77,4 +77,4 @@ if __name__ == '__main__':
             connectivity = 12-connectivity
             print('connectivity =', connectivity)
             update()
-    cv2.destroyAllWindows()
+    cv.destroyAllWindows()