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Re: 16-bits per channel tifs
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Re: 16-bits per channel tifs


  • Subject: Re: 16-bits per channel tifs
  • From: Andrew Platzer <email@hidden>
  • Date: Wed, 23 Jan 2002 15:08:00 -0800

On Tuesday, January 22, 2002, at 07:19 , Josh Anon wrote:
I'm working on a viewing app that needs to be able to open 16-bit per channel (so 48 bits/pixel) tif files from digital cameras. NSImage doesn'
t seem too happy opening these files, though. I remember someone's saying higher bits per channel would be a priority in later versions of X than 10.1...is it possible to open these files in 10.1.2 or is that not "later" enough :) If not, is using a CGImageRef and providing a custom data provider still the correct way to go about this?

10.1.2 does not support > 8 bps images but it's a reasonably high priority for the next release of the AppKit (no guarantees of course). Also in the future, CGImageRef will also support > 8 bps but for now your solution of using a custom data provider to trim down the source data to 8 bps is the only way.

Andrew
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References: 
 >16-bits per channel tifs (From: Josh Anon <email@hidden>)

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