Bug 694605

Summary:	Differences in color with and without banding
Product:	Ghostscript	Reporter:	Marcos H. Woehrmann <marcos.woehrmann>
Component:	Color	Assignee:	Michael Vrhel <michael.vrhel>
Status:	RESOLVED FIXED
Severity:	normal
Priority:	P4
Version:	master
Hardware:	PC
OS:	All
Customer:		Word Size:	---
Attachments:	test1.png test0.png

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.