2005.03.22 17:20 "[Tiff] tif_jpeg.c and 12bit JPEG Files", by Frank Warmerdam

2005.03.22 18:10 "Re: [Tiff] tif_jpeg.c and 12bit JPEG Files", by Frank Warmerdam

Libtiff should also support 12 bits using 6b libjpeg if possible. I believe that the interface is compatible since it looks like the "Mk1" interface.

Bob,

Yes, it is my hope to do a test build this way and verify that things work properly. As far as I can tell the current tif_jpeg.c does not repack the 16bit values returned by libjpeg6b (in 12bitmode) to 12bit. Folks have apparently used this form, but I don't really know how they make it work.

Best regards,

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