Make pictures moody, nostalgic, and somehow sad. Subdue hue and focus to direct the viewer's gaze. Full-color, mid-color, and sepia-like effects.
AnaBuilder is a freeware program for the creation of stereoscopic photographs
ScopeWorks is a powerful kaleidoscope program for Macintosh computers.
Fractal Architect allows you to create awesome flame fractal images.
