From 79b500eb0da037bb25e60b0b3238f8ab92e92db5 Mon Sep 17 00:00:00 2001
From: Vladislav Vinogradov <no@email>
Date: Tue, 10 May 2011 06:28:48 +0000
Subject: [PATCH] fixed bug in cv::Scharr and cv::Laplacian (ddepth < 0)

---
 modules/imgproc/src/deriv.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/modules/imgproc/src/deriv.cpp b/modules/imgproc/src/deriv.cpp
index 536a53a7f9..7addf20613 100644
--- a/modules/imgproc/src/deriv.cpp
+++ b/modules/imgproc/src/deriv.cpp
@@ -507,6 +507,8 @@ void cv::Scharr( const InputArray& _src, OutputArray _dst, int ddepth, int dx, i
                  double scale, double delta, int borderType )
 {
     Mat src = _src.getMat();
+    if (ddepth < 0)
+        ddepth = src.depth();
     _dst.create( src.size(), CV_MAKETYPE(ddepth, src.channels()) );
     Mat dst = _dst.getMat();
     
@@ -537,7 +539,9 @@ void cv::Scharr( const InputArray& _src, OutputArray _dst, int ddepth, int dx, i
 void cv::Laplacian( const InputArray& _src, OutputArray _dst, int ddepth, int ksize,
                     double scale, double delta, int borderType )
 {
-    Mat src = _src.getMat();
+    Mat src = _src.getMat();    
+    if (ddepth < 0)
+        ddepth = src.depth();
     _dst.create( src.size(), CV_MAKETYPE(ddepth, src.channels()) );
     Mat dst = _dst.getMat();
     
-- 
GitLab