added 0xFF & in front of every waitKey so that it works on linux

2012-03-14 21:46:34 +00:00
parent ade7394e77
commit 9164ccbaaf
22 changed files with 25 additions and 25 deletions
--- a/samples/python2/color_histogram.py
+++ b/samples/python2/color_histogram.py
@@ -42,6 +42,6 @@ if __name__ == '__main__':
        vis = hsv_map*h[:,:,np.newaxis] / 255.0
        cv2.imshow('hist', vis)
        
-        ch = cv2.waitKey(1)
+        ch = 0xFF & cv2.waitKey(1)
        if ch == 27:
            break