2006.02.08 16:01 "Re: [Tiff] Are Compression CCITTFAX4 inverted?", by Bob Friesenhahn
On Wed, 8 Feb 2006, arlon wrote:
> Hi friends
> My Tiff have two bugs,
> When compression is CCITTFAX4 in Windows Fax Viewer it appear inverted. > Appear as has just one page.
> Who can help me?
The only workable solution is to use a photometric of PHOTOMETRIC_MINISWHITE and invert the bits yourself before saving them. Most FAX viewers assume that the default background is white like a printed page and will ignore the photometric.
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/