Merge pull request #3830 from sturkmen72:upd_find_ellipses_cpp

Fix: ximgproc::findEllipses modifies src image unexpectedly
opencv · Nov 26, 2024 · 5409e01 · 5409e01
2 parents ec5e4c3 + a6ee365
commit 5409e01
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/modules/ximgproc/src/find_ellipses.cpp b/modules/ximgproc/src/find_ellipses.cpp
@@ -1218,9 +1218,10 @@ void EllipseDetectorImpl::getTriplets413(VVP &pi, VVP &pj, VVP &pk,
     }
 }
 
-void EllipseDetectorImpl::preProcessing(Mat1b &image, Mat1b &dp, Mat1b &dn) {
+void EllipseDetectorImpl::preProcessing(Mat1b &src, Mat1b &dp, Mat1b &dn) {
     // smooth image
-    GaussianBlur(image, image, _kernelSize, _sigma);
+    Mat image;
+    GaussianBlur(src, image, _kernelSize, _sigma);
 
     // temp variables
     Mat1b edges;// edge mask