Your message dated Sat, 17 Sep 2011 04:49:39 -0400
with message-id <[email protected]>
and subject line re: xpdf-reader: display of cmy and cmyk is faulty
has caused the Debian Bug report #282907,
regarding xpdf-reader: display of cmy and cmyk is faulty
to be marked as done.
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282907: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=282907
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: xpdf-reader
Version: 3.00-10
Severity: normal
Hello !
I was just looking at the pdf /usr/share/doc/latex-xcolor/xcolor1.pdf.gz
found in debian
package latex-xcolor, which is supposed to demonstrate that there is little
error if, using
this package for converting color spaces, we shift this way : rgb -> cmy ->
cmyk -> hsb and
then back to rgb. With each of the colors tried, for each of the color
conventions, there is
a little box with the given color.
Using gv to display the file, it is impossible to tell if there is any
difference between
the colors for each test. However, using xpdf, I can see clearly that the
colors are
slightly different for the cmy and cmyk color conventions. It then seems to me
that the
algorithm which xpdf uses to display cmyk colors or simply to convert them to
rgb must be
faulty.
Thanks for considering this report
Vincent Fourmond
-- System Information:
Debian Release: 3.1
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'testing')
Architecture: i386 (i686)
Kernel: Linux 2.6.7
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Versions of packages xpdf-reader depends on:
ii gsfonts 8.14+v8.11-0.1 Fonts for the Ghostscript interpre
ii lesstif2 1:0.93.94-11 OSF/Motif 2.1 implementation relea
ii libc6 2.3.2.ds1-18 GNU C Library: Shared libraries an
ii libfreetype6 2.1.7-2.3 FreeType 2 font engine, shared lib
ii libgcc1 1:3.4.3-1 GCC support library
ii libice6 4.3.0.dfsg.1-8 Inter-Client Exchange library
ii libpaper1 1.1.14-3 Library for handling paper charact
ii libsm6 4.3.0.dfsg.1-8 X Window System Session Management
ii libstdc++5 1:3.3.5-2 The GNU Standard C++ Library v3
ii libt1-5 5.0.2-3 Type 1 font rasterizer library - r
ii libx11-6 4.3.0.dfsg.1-8 X Window System protocol client li
ii libxext6 4.3.0.dfsg.1-8 X Window System miscellaneous exte
ii libxp6 4.3.0.dfsg.1-8 X Window System printing extension
ii libxpm4 4.3.0.dfsg.1-8 X pixmap library
ii libxt6 4.3.0.dfsg.1-8 X Toolkit Intrinsics
ii xlibs 4.3.0.dfsg.1-8 X Window System client libraries m
ii xpdf-common 3.00-10 Portable Document Format (PDF) sui
ii zlib1g 1:1.2.2-3 compression library - runtime
-- no debconf information
--- End Message ---
--- Begin Message ---
Based on upstream, there really isn't anything to be done about this
since results are device dependent.
--- End Message ---
