Island Graphics TIFF
From Just Solve the File Format Problem
Island Graphics TIFF is a variant of the TIFF graphic format used by software from Island Graphics, which has been developing graphics software for Unix-type platforms since the 1980s. (Islandsoft is an office software company that was spun off from Island Graphics.)
Tag values
The TIFF format uses tags identified by number. Tag numbers 32952 through 32956 are registered to Island Graphics for its own specialized use. These values are known:
-
TIFFTAG_REFPTS
32953 Image reference points -
TIFFTAG_REGIONTACKPOINT
32954 Region-xform tack point -
TIFFTAG_REGIONWARPCORNERS
32955 Warp quadrilateral -
TIFFTAG_REGIONAFFINE
32956 Affine transformation mat