Fix LineAA in case of 4 channel

Fix bug when enter 4 channel image to LineAA function.
10 years ago · b23e536894
parent 8b33c6fa8f
commit b23e536894
1 changed files with 2 additions and 2 deletions
--- a/modules/core/src/drawing.cpp
+++ b/modules/core/src/drawing.cpp
@ -608,12 +608,12 @@ 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();