Merge pull request #19423 from LaurentBerger:houg_acc

Return accumulator value in HoughLines algorithm

* try to solve #17050

use cv_wrap_as

add python test

parameters

* review

* move wrapper to imgproc/bindings.hpp

modules/python/test/test_houghlines.py

@@ -64,6 +64,9 @@ class houghlines_test(NewOpenCVTests):
 
         self.assertGreater(float(matches_counter) / len(testLines), .7)
 
+        lines_acc = cv.HoughLinesWithAccumulator(dst, rho=1, theta=np.pi / 180, threshold=150, srn=0, stn=0)
+        self.assertEqual(lines_acc[0,0,2], 192.0)
+        self.assertEqual(lines_acc[1,0,2], 187.0)
 
 if __name__ == '__main__':
     NewOpenCVTests.bootstrap()