Update README.md

Nerdyvedi · web-flow · commit 77317ae086b4 · 2019-10-29T12:15:12.000+05:30
diff --git a/modules/ximgproc/README.md b/modules/ximgproc/README.md
@@ -16,4 +16,4 @@ Extended Image Processing
 - Pei&Lin Normalization
 - Ridge Detection Filter
 - Binary morphology on run-length encoded images
-- Global sampling method for matting
+- Global sampling method for alpha matting
