From: nicolas <nicolas@git.imagemagick.org>
Date: Sun, 14 Nov 2010 15:33:45 +0000 (+0000)
Subject: (no commit message)
X-Git-Tag: 7.0.1-0~8509
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=12101a8955c7f397f2c6bcf6c31b85ad5e170c90;p=imagemagick

---

diff --git a/magick/resize.c b/magick/resize.c
index 4dde18d14..fbda1fc43 100644
--- a/magick/resize.c
+++ b/magick/resize.c
@@ -548,17 +548,6 @@ static MagickRealType Welsh(const MagickRealType x,
 %    Images with only vertical or horizontal features are preserved
 %    when performing 'no-op" with EWA distortion.
 %
-%  EWA LanczosSharp does not satisfy this condition exactly, but it
-%  comes really close: If all the data is in [0,1] and the input image
-%  is constant on columns (or rows), EWA LanczosSharp preserves the
-%  image under no-op to within 0.00465 (that is, it is off by at most
-%  2 in 8-bit); EWA Lanczos, on the other hand, preserves it to within
-%  0.0174 (5 in 8-bit).  The preservation of arbitrary images under
-%  no-op, however, is not so good: EWA Lanczos preserves it to within
-%  0.308 (79 in 8-bit), EWA LanczosSharp to within 0.315 (81 in
-%  8-bit). In particular, 'pixel-hash' patterns (the checkerboard
-%  mode) are smoothed out a lot.
-%
 %  The Lanczos2 and Lanczos2Sharp filters are 2-lobe versions of the
 %  Lanczos filters.  The 'sharp' version uses a blur factor of
 %  0.958027803631219, again chosen because the resulting EWA filter