Problems rotating an image, or mogrify -rotate blues!

[William J Giddings]

As a part of a Tcl script I'm using imageMagick to split and rotate scanned dual pages.
Ok, the split is working, but I'm getting problems with the rotation.

Here's an example of the command that my Tcl script outputs to the shell..

Code: Select all

mogrify -rotate 90 split-0001.tif

And here's the error that I get back.

Code: Select all

rotating split-0001.tif
mogrify: "XPosition": Information lost writing value (-20.8889) as (unsigned) RATIONAL. `split-0001.tif'

Sometimes I notice that when I test the script it will rotate an initital 3 or 4 files before giving the same error.

I get the same problem if I directly used the same command at the command line.

Any ideas what's causing the problem?

Will