Fix LineAA in case of 4 channel

Fix bug when enter 4 channel image to LineAA function.
10 years ago · cd13b30fde
parent 190d00ea3e
commit cd13b30fde
1 changed files with 2 additions and 2 deletions
--- a/modules/imgproc/src/drawing.cpp
+++ b/modules/imgproc/src/drawing.cpp
@ -610,12 +610,12 @@ LineAA( Mat& img, Point pt1, Point pt2, const void* color )
                ICV_PUT_POINT();
                ICV_PUT_POINT();

-                tptr += step;
+                tptr += 4;
                a = (ep_corr * FilterTable[dist] >> 8) & 0xff;
                ICV_PUT_POINT();
                ICV_PUT_POINT();

-                tptr += step;
+                tptr += 4;
                a = (ep_corr * FilterTable[63 - dist] >> 8) & 0xff;
                ICV_PUT_POINT();
                ICV_PUT_POINT();