[gs-commits] mupdf/text 0.8.187 Another attempt to fix bug 691629.
tor at ghostscript.com
Wed Oct 12 11:57:44 UTC 2011
Author: Robin Watts <Robin.Watts at artifex.com>
Date: Tue Aug 2 14:06:18 2011 +0100
Another attempt to fix bug 691629.
To solve bug 691629 we need to ensure that the scaling weights for
every pixel in a gridfitted image sum to 256. I had attempted to
do that by enabling the 'WRAP' code, but this has the effect of
adding too much bias to the outlying source pixels, resulting in
thickened serifs etc.
A better fix is to extend the code that is already present to check
the weights for validity. If an image pixel is completely covered,
then force the weights to 256 by adjusting the largest weight.
This still skews the output slightly but it's a much less visible
:100644 100644 6bf741c... 427512c... M draw/draw_scale.c
MuPDF, a lightweight PDF and XPS viewer
Artifex Software, Inc.
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