1.limited support for pixel unit,I donnot know the size of a pixel ,This will limit the use of GDAL in photogrammetry region. 2. limited support for CMYK image Best regards CXQ -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.osgeo.org/pipermail/gdal-dev/attachments/20040416/d0351d5e/attachment.html