Image manipulation

This disclosure relates to methods of transforming an image. Disclosed herein is a method for manipulating an image using at least one image control handle. The image comprises pixels, and at least one set of constrained pixels defines a constrained region 201,202,203 having a transformation constraint. The method comprises transforming pixels of the image based on input received from the manipulation of the at least one image control handle. The transformation constraint applies to the pixels inside the constrained region, and the degree to which the transformation constraint applies to any respective pixel outside the constrained region is conditional on the distance between the respective pixel and the constrained region.