diff --git a/magick/resize.c b/magick/resize.c
index 0e6e949..6ff6471 100644
--- a/magick/resize.c
+++ b/magick/resize.c
@@ -540,9 +540,9 @@
% form of the Lanczos filter. It was designed specifically for
% cylindrical EWA (Elliptical Weighted Average) distortion (as a
% Jinc-Jinc filter), but can used as a slightly sharper orthogonal
-% Lanczos (Sinc-Sinc) filter. The blur value, the corresponding EWA
-% filter comes as close as possible to satisfying the following
-% condition:
+% Lanczos (Sinc-Sinc) filter. The chosen blur value comes as close as
+% possible to satisfying the following condition without changing the
+% character of the corresponding EWA filter:
%
% 'No-Op' Vertical and Horizontal Line Preservation Condition:
% Images with only vertical or horizontal features are preserved
@@ -551,8 +551,9 @@
% The Lanczos2 and Lanczos2Sharp filters are simply 2-lobe versions
% of the Lanczos filters. The 'sharp' version uses a blur factor of
% 0.958027803631219, again chosen because the resulting EWA filter
-% comes as close as possible to satisfing the "'No-Op' Vertical and
-% Horizontal Line Preservation Condition".
+% comes as close as possible to preserving vertical and horizontal
+% lines without changing its character. (There are other optimal
+% values; we use the least sharpening one).
%
% Robidoux is another filter tuned for EWA. It is the Keys cubic
% filter defined by B=(228 - 108 sqrt(2))/199. Robidoux satisfies the