Bug 694605 - Differences in color with and without banding
Summary: Differences in color with and without banding
Status: RESOLVED FIXED
Alias: None
Product: Ghostscript
Classification: Unclassified
Component: Color (show other bugs)
Version: master
Hardware: PC All
: P4 normal
Assignee: Michael Vrhel
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2013-09-19 21:18 UTC by Marcos H. Woehrmann
Modified: 2015-11-02 09:18 UTC (History)
0 users

See Also:
Customer:
Word Size: ---

Attachments
test1.png (7.68 KB, image/png)
2013-09-19 21:19 UTC, Marcos H. Woehrmann 		Details
test0.png (7.78 KB, image/png)
2013-09-19 21:19 UTC, Marcos H. Woehrmann 		Details
Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Marcos H. Woehrmann 2013-09-19 21:18:57 UTC 
The following two command lines produce output with different colors:

bin/gs -o test1.png -dMaxBitmap=10000     -sDEVICE=png16m \
   -r300 ./Altona_Technical_v20_x4_page7.pdf

bin/gs -o test0.png -dMaxBitmap=400000000 -sDEVICE=png16m \
   -r300 ./Altona_Technical_v20_x4_page7.pdf

Note the input file is a cut down version of page 7 of the Altona_Technical_v20_x4.pdf file.
Comment 2 Marcos H. Woehrmann 2013-09-19 21:19:37 UTC 
Created attachment 10214 [details]
test1.png
Comment 3 Marcos H. Woehrmann 2013-09-19 21:19:48 UTC 
Created attachment 10215 [details]
test0.png
Comment 4 Marcos H. Woehrmann 2013-09-19 21:21:39 UTC 
Adobe Acrobat 11.0.04 and muPDF 1.3 both agree with the test1.png file but Apple Preview 6.0.1 agrees with test0.png.
Comment 5 Michael Vrhel 2015-11-02 09:18:06 UTC 
This has been fixed.  I remember working on this issue for
a customer.