abracadabra

abracadabra is a generic image processing program. It supports the formats JPEG, PNG, GIF, GD, and GD2. It generates animated GIFs, morphs GIF animations, and computes single morphing steps. It also extracts features from several pictures to feed into the ghSOM (a neural net). It also can preprocess those images with filters that are either freely definable or have fixed implementations. It can hide messages inside an image.