diff --git a/magick/effect.c b/magick/effect.c
index d124f33..f3b4509 100644
--- a/magick/effect.c
+++ b/magick/effect.c
@@ -4529,7 +4529,7 @@
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% StatisticImage() makes each pixel the min / max / median / mode / etc. of
-% the neighborhood of the specified radius.
+% the neighborhood of the specified width and height.
%
% The format of the StatisticImage method is:
%
@@ -5084,7 +5084,7 @@
ThrowImageException(ResourceLimitError,"MemoryAllocationFailed");
}
/*
- Reduce statistics image.
+ Make each pixel the min / max / median / mode / etc. of the neighborhood.
*/
status=MagickTrue;
progress=0;
diff --git a/wand/magick-image.c b/wand/magick-image.c
index 70bda09..d5ae125 100644
--- a/wand/magick-image.c
+++ b/wand/magick-image.c
@@ -11689,7 +11689,7 @@
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% MagickStatisticImage() replace each pixel with corresponding statistic from
-% the neighborhood of the specified radius.
+% the neighborhood of the specified width and height.
%
% The format of the MagickStatisticImage method is:
%
@@ -11707,7 +11707,9 @@
%
% o type: the statistic type (e.g. median, mode, etc.).
%
-% o radius: the radius of the pixel neighborhood.
+% o width: the width of the pixel neighborhood.
+%
+% o height: the height of the pixel neighborhood.
%
*/
WandExport MagickBooleanType MagickStatisticImage(MagickWand *wand,