LibTiff Mailing List
TIFF and LibTiff Mailing List Archive
December 2005
Previous Thread
Next Thread
Previous by Thread
Next by Thread
Previous by Date
Next by Date
Contact
The TIFF Mailing List Homepage
This list is run by Frank Warmerdam
Archive maintained by AWare Systems
Thread
2005.12.24 03:56 "Re: problem reading Photoshop CS2 JPEG-in-TIFF", by Joris Van Damme
Joris wrote: > Dwight Kelly wrote: > > JPEGPreDecode: Warning, Improper JPEG sampling factors 2,2 > > Apparently should be 1,1.. > > JPEGPreDecode: Warning, Decompressor will try reading with sampling > > 2,2.. JPEGPreDecode: Improper JPEG sampling factors. > > I believe the reason for this may be the auto-correction of > YCbCrSubsampling values. > > Can you try undefining the macro CHECK_JPEG_YCBCR_SUBSAMPLING from > your build? Looking at the actual code, I'm more confused now. My previous advice may not solve anything, and I'm not even sure CHECK_JPEG_YCBCR_SUBSAMPLING is defined in your build. Can you mail me such a file? Joris Van Damme info@awaresystems.be http://www.awaresystems.be/ Download your free TIFF tag viewer for windows here: http://www.awaresystems.be/imaging/tiff/astifftagviewer.html