AWARE SYSTEMS
TIFF and LibTiff Mail List Archive

Thread

2000.07.17 14:13 "TIFF: G4 Height multiplication", by Chris Losinger
2000.07.17 16:30 "Re: TIFF: G4 Height multiplication", by Daniel McCoy
2000.07.17 16:47 "RE: TIFF: G4 Height multiplication", by Brian Herron

2000.07.17 14:13 "TIFF: G4 Height multiplication", by Chris Losinger

        (using LibTiff 3.4 b37)

I have a g4 TIFF here that claims to be 1728 x 1055 pixels (this shows up in the tif->tif_dir.imagewidth and tif->tif_dir.imageheight as well as tile width and height. also, 1055 is the td_rowsperstrip value and td_stripsperimage is 1.

all of this tells me that the image is 1728 x 1055.

but, most image viewers draw this as 1728 x 2110; height doubled. and, the image looks correct with the doubled height.

the problem is that i don't see anything obvious in the tif_dir that tells me to double the height. nor do i see anyuthing in The Gimp or ImageMagick's TIFF reading code that would do this kind of doubling either.

can anyone help me out?

        -c