Merge pull request #3407 from wangyan42164:canny_bug_fix

11 years ago · 23a81c0fb8
parent 77be6d64c1 184b6e314c
commit 23a81c0fb8
1 changed files with 1 additions and 1 deletions
--- a/modules/imgproc/src/canny.cpp
+++ b/modules/imgproc/src/canny.cpp
@ -453,7 +453,7 @@ void cv::Canny( InputArray _src, OutputArray _dst,
        if ((stack_top - stack_bottom) + src.cols > maxsize)
        {
            int sz = (int)(stack_top - stack_bottom);
-            maxsize = maxsize * 3/2;
+            maxsize = std::max(maxsize * 3/2, sz + src.cols);
            stack.resize(maxsize);
            stack_bottom = &stack[0];
            stack_top = stack_bottom + sz;