Legacy ImageMagick Discussions Archive

I want to get the final geometry of an image that has been trimmed and deskewed for use in another program but I can't figure out how to do it. I read this but don't understand the output I am seeing:

http://www.imagemagick.org/Usage/crop/#trim

This documentation tells how to get information out of -trim but doesn't interpret it.
1668x2715 is the final dimensions of the image. What exactly is 1776x2969+1+113? The documentation says it refers to the part that has been trimmed but I have no idea how to interpret that.

What I want to do is get the final geometry of an image after a series of operations. This will happen inside a program so doesn't have to be in a single IM command, but that's always nice if it's possible.

This is the initial image:



After the series of operations I want to get a [w]x[h]+dx+dy coordinates and a rotation with respect to the original.

The first operation is a known initial crop value:


The second operation I tack on is a deskew:


The last operation is the -trim:


So what I want to end up with is the deskew angle to slightly rotate the inital image and the [w]x[h]+dx+dy coordinates of the final image within the original image. I know how to get the deskew angle by putting -print %[deskew:angle] null: at the end of my command, but I'm not sure how to combine that with the other information I need.

Any ideas? The original tiff image is here: http://ucblibrary4.berkeley.edu/~apollo ... /input.tif

Add +repage, unless you want to know where the result would be offset from the padded image.


Also see

http://www.imagemagick.org/script/escape.php
or
If those fail, then redirect std err to std out by adding at the end 2>&1