Re: 5-channel CMYKA image fails to give TIFFRepresentation
Re: 5-channel CMYKA image fails to give TIFFRepresentation
- Subject: Re: 5-channel CMYKA image fails to give TIFFRepresentation
- From: Jeff Disher <email@hidden>
- Date: Wed, 27 Nov 2002 22:47:02 -0500
For the record, I filed a bug about this yesterday night after not
receiving any hints from the lists (I figured it was a technical
short-coming of the API due to the nature of the error messages). So,
for anyone else interested, the bug was accepted and assigned problem
ID # 3112805.
Thanks,
Jeff.
On Wednesday, November 27, 2002, at 08:15 PM, Andrew Platzer wrote:
On Monday, Nov 25, 2002, at 19:05 US/Pacific, Jeff Disher wrote:
For some reason the TIFFRepresentation method of NSImage is failing
horribly when sent to an instance that holds a 5-channel CMYKA image.
It prints this error in the console:
<snip>
TIFF Error: Cannot handle 5-channel data.
...
Can anyone figure this one out? Since the NSBitmapImageRep supports
these CMYKA images and talks about them in the docs I would assume
that the methods that work with it would work as well.
The TIFF code in Cocoa won't read or write CMYKA TIFFs even though
NSBitmapImageReps does support this format. This has always been the
case as far as I can tell. Please file a bug about it.
Andrew
______________________
Andrew Platzer
Application Frameworks
Apple Computer, Inc.
Jeff Disher
President and Lead Developer of Spectral Class
Spectral Class: Shedding Light on Innovation
http://www.spectralclass.com/
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