2009.02.12 16:21 "Re: [Tiff] Crosstesting request 12 bits per sample JPEG compression in TIFF", by Bob Friesenhahn

On Thu, 12 Feb 2009, Joris Van Damme (AWare Systems) wrote:

I've assembled a series of testfiles. They're only checked in the sense that encoder input matches decoder output. I've not been able to find a single software that can read back 12 bits per sample JPEG in TIFF, though, so there's been no crosstesting yet, and that's the reason for this post. I

GraphicsMagick can be built to do this using a suitably built libjpeg.

reversal, CMYK and ITULAB color spaces, etc...) Also, the other way around, if anyone has some other 12 bits per sample JPEG in TIFF files to test with and/or can produce some, I'd be happy to test and see if my own decoder reads them back flawlessly.

Previously the test file in this package was contributed:

ftp://ftp.graphicsmagick.org/pub/outgoing/mandrill-12bit-JPEG-TIFF.zip

Bob
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Bob Friesenhahn
bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/