Remove white background and resize

[mikeinpdx]

I'm fairly new to ImageMagick, but have used some of the command line tool/options to do basic stuff.

I've got a lot of images that have varying amounts of white background (photos of commercial products). I'd like to make the image sizes consistent, which probably isn't too hard. But ideally what I would like to do is remove the white background, then resize the image so that the image is enlarged as much as possible to fit within a given constraint and isn't affected by the background.

In other words, suppose the image is actually 25% white border/background. I'd like to resize that inner 75%, so that the scaled image has no boarder, making the processed image as large as possible given the size constraints, and not wasting image area on borders. Is that possible?

[Bonzo]

Show an example image; -trim will remove a border.

This artical may be of interest: http://tech.natemurray.com/2007/12/conv ... arent.html

[fmw42]

given you know your input size ahead of time:

use convert input -fuzz XX% -trim +repage -resize WIDTHxHEIGHT output

see http://www.imagemagick.org/script/comma ... p#geometry

[mikeinpdx]

Thanks! That's exactly what I needed.