imgproc: removed LSD code due original code license conflict

modules/imgproc/include/opencv2/imgproc.hpp

@@ -1211,14 +1211,12 @@ protected:
 //! @addtogroup imgproc_feature
 //! @{
 
-/** @example samples/cpp/lsd_lines.cpp
-An example using the LineSegmentDetector
-\image html building_lsd.png "Sample output image" width=434 height=300
-*/
-
 /** @brief Line segment detector class
 
 following the algorithm described at @cite Rafael12 .
+
+@note Implementation has been removed due original code license conflict
+
 */
 class CV_EXPORTS_W LineSegmentDetector : public Algorithm
 {
@@ -1282,6 +1280,8 @@ to edit those, as to tailor it for their own application.
 is chosen.
 @param _density_th Minimal density of aligned region points in the enclosing rectangle.
 @param _n_bins Number of bins in pseudo-ordering of gradient modulus.
+
+@note Implementation has been removed due original code license conflict
  */
 CV_EXPORTS_W Ptr<LineSegmentDetector> createLineSegmentDetector(
     int _refine = LSD_REFINE_STD, double _scale = 0.8,

modules/imgproc/test/test_lsd.cpp

@@ -5,6 +5,8 @@
 
 namespace opencv_test { namespace {
 
+#if 0  // LSD implementation has been removed due original code license issues
+
 const Size img_size(640, 480);
 const int LSD_TEST_SEED = 0x134679;
 const int EPOCHS = 20;
@@ -402,4 +404,6 @@ TEST_F(Imgproc_LSD_Common, compareSegmentsVec4i)
     ASSERT_EQ(result2, 11);
 }
 
+#endif
+
 }} // namespace