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[Freetype] hinting changes
From: |
Alexander R. Pruss |
Subject: |
[Freetype] hinting changes |
Date: |
Tue, 25 May 2004 20:31:28 -0400 (EDT) |
I've just upgraded my build of PalmFontConv (font converter for generating
PalmOS font bitmaps-- palmfontconv.sf.net) to use 2.1.8, having previously
used, I think, 2.1.4. I've noticed some improvements and some losses of
quality. I'm of course using only autohinting, with the patented stuff
disabled.
My test font is Bitstream Vera, scaled to 12 pixels. I notice:
With monochrome rendering:
1. m is more symmetric with newer version (as per changelog). Good.
2. At least one lowercased letter with an umlaut (I think u-umlaut)
lost one of the dots in newer version. Old version was OK.
With grayscale rendering:
I've seen one vertical which used to be rendered with a full-darkness
pixel line and beside it a light pixel line get rendered instead
with two medium-dark pixel lines. The other vertical in the glyph
(I can't remember what the glyph was, but it was something fairly
symmetric like 'u') was as before. This, I suspect, would look
washed out when rendered on a device. (I was just looking at a
text-readable dump of the font.)
Are there any parameters that can be tweaked to fix these things?
Alex
--
Dr. Alexander R. Pruss || e-mail: address@hidden
Philosophy Department || online papers and home page:
Georgetown University || www.georgetown.edu/faculty/ap85
Washington, DC 20057 ||
U.S.A. ||
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"Philosophiam discimus non ut tantum sciamus, sed ut boni efficiamur."
- Paul of Worczyn (1424)
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