AKVIS Decorator is a plug-in that allows you to change the surface of an object in a realistic manner. You can apply a snake skin to your car, turn a man into an alien, change a dress on a girl, convert a wooden table into a golden one, etc. It is compatible with Adobe Photoshop and Photoshop Elements, Corel Painter, Corel Photo-Paint, Paint Shop Pro, and Ulead PhotoImpact.
Magic Lantern is a multimedia "slide show" creation and presentation tool that helps its users to locate, correlate, and present sequences of graphic images, the modern equivalent of a slide show. It includes a sophisticated editor that supports drag and drop, and similar features that simplify the task of arranging images for presentation. It supports standard multimedia remote controls, has features such as image dissolve, and supports audio file synchronization with images.
Scalpel is an audio editor for Linux. It aims to provide a simple-to-use and easy-to-extend audio editor. Scalpel still has some rough edges but is quite usable. Scalpel uses PyGTK for the user interface, Numpy for the internal processing, ALSA for the audio playing, and libsndfile for reading and writing files. A minimal part of the code is written in Cython for better performance.
Grafx2 is a bitmap paint program that allows you to draw in more than 60 video resolutions (from 320x200 to 1024x768, including most of the standard Amiga resolutions: 320x256, 320x512, 640x256, 640x512, and more, provided your video card knows how to handle them). Its layout is not very different from the famous Deluxe Paint or Brilliance, so it will be quite easy to handle it if you know at least one of these programs.
Shape Collage is an automatic photo collage maker that lets you create picture collages in less than a minute with just a few mouse clicks. Shape Collage creates collages using an intelligent machine learning algorithm that automatically places the photos in the collage and can arrange the photos to form different shapes. You can even save the collage as an Adobe Photoshop PSD file, and edit the collage afterwards in Photoshop or GIMP.
Flowpaint is a next generation paint program that focuses on usability and power. It's cross platform and supports pressure sensitive graphics tablets. Planned features for future versions include user-editable procedural brushes, brushes created from pictures, layers with arbitrary data channels, infinite and wrapping canvas layouts, parametrized picture templates, and built-in support for downloading and sharing new brushes and templates.