diff --git a/modules/imgproc/doc/miscellaneous_transformations.rst b/modules/imgproc/doc/miscellaneous_transformations.rst
index 6d91d8956c..4ebf6d5ee5 100644
--- a/modules/imgproc/doc/miscellaneous_transformations.rst
+++ b/modules/imgproc/doc/miscellaneous_transformations.rst
@@ -183,7 +183,7 @@ The function can do the following transformations:
 
     .. math::
 
-        G  \leftarrow Y - 0.344  \cdot (Cr - delta) - 0.714  \cdot (Cb - delta)
+        G  \leftarrow Y - 0.714  \cdot (Cr - delta) - 0.344  \cdot (Cb - delta)
 
     .. math::