Hi Erik, thanks for using the new gil::io. Sorry for not getting back to you sooner. On Sun, Apr 17, 2011 at 6:36 PM, Erik Hvatum <ice.rikh@gmail.com> wrote:
Briefly:
gil new_io does not support tiff alpha channel. Is support planned? If not, I'll attempt to add it and submit a patch if successful.
Before going into details can you tell what your PhotometricInterpretation value is? See here: http://www.awaresystems.be/imaging/tiff/tifftags/photometricinterpretation.h... Using this value will decide what color space an image is in.
Details:
I am using the latest code from the gil-contributions googlecode SVN repository. The following causes a crash when "tifffile.tif" is interleaved 32-bit rgba (ie 8*4 bits, including the alpha channel):
Could you send me the tifffile.tif or something of similar format? That would help me hugely. Regards, Christian