converted houghlines to C++

modules/imgproc/perf/perf_houghLines.cpp

@@ -36,5 +36,6 @@ PERF_TEST_P(Image_RhoStep_ThetaStep_Threshold, HoughLines,
 
     TEST_CYCLE() HoughLines(image, lines, rhoStep, thetaStep, threshold);
 
+    transpose(lines, lines);
     SANITY_CHECK(lines);
 }

modules/imgproc/test/test_houghLines.cpp

@@ -134,6 +134,9 @@ void CV_HoughLinesTest::run_test(int type)
     read( fs["exp_lines"], exp_lines, Mat() );
     fs.release();
 
+    if( exp_lines.size != lines.size )
+        transpose(lines, lines);
+
     if ( exp_lines.size != lines.size || norm(exp_lines, lines, NORM_INF) > 1e-4 )
     {
         ts->set_failed_test_info(cvtest::TS::FAIL_MISMATCH);