Liquid Rescale GIMP Plug-In version 0.7 help page

The Liquid Rescale GIMP Plug-In is an implementation of the content-aware resizing by seam carving algorithm by Shai Avidan and Ariel Shamir.

It aims at resizing pictures non uniformly while preserving the features of the picture, i.e. avoiding distortion of the important parts of the picture. It can also be used to remove portions of the picture in a consistent way.

It works both ways, shrinking and enlaging (enlarging is performed in successive steps), and it can use extra layers as masks to select which features of the image should be preserved and which should be discarded.