I'm trying to download all of the images from a website, but this site only
links to cropped thumbnails of each image.

For example, they'll link to 

www.example.com/image.jpg?w=727&h=409&fit=thumb&f=center

when the url of the full sized image is 

www.example.com/image.jpg

Is there a way to get HTTrack to remove all image modifiers?