initial commit

samples/python/mser.py

@@ -0,0 +1,56 @@
+#!/usr/bin/env python
+
+'''
+MSER detector demo
+==================
+
+Usage:
+------
+    mser.py [<video source>]
+
+Keys:
+-----
+    ESC   - exit
+
+'''
+
+# Python 2/3 compatibility
+from __future__ import print_function
+
+import numpy as np
+import cv2 as cv
+
+import video
+import sys
+
+def main():
+    try:
+        video_src = sys.argv[1]
+    except:
+        video_src = 0
+
+    cam = video.create_capture(video_src)
+    mser = cv.MSER_create()
+
+    while True:
+        ret, img = cam.read()
+        if ret == 0:
+            break
+        gray = cv.cvtColor(img, cv.COLOR_BGR2GRAY)
+        vis = img.copy()
+
+        regions, _ = mser.detectRegions(gray)
+        hulls = [cv.convexHull(p.reshape(-1, 1, 2)) for p in regions]
+        cv.polylines(vis, hulls, 1, (0, 255, 0))
+
+        cv.imshow('img', vis)
+        if cv.waitKey(5) == 27:
+            break
+
+    print('Done')
+
+
+if __name__ == '__main__':
+    print(__doc__)
+    main()
+    cv.destroyAllWindows()