Manuals

Gimp

The GIMP is a multiplatform photo manipulation tool. GIMP is an acronym for GNU Image Manipulation Program. The GIMP is suitable for a variety of image manipulation tasks, including photo retouching, image composition, and image construction.

Gimp Manual

Groking the Gimp

Hugin

Hugin Manual (for making panoramas)

Qtpfsgui

Qtpfspui Manual

krita

Krita Manual

digikam

digikam Manual

apophysis

apophysis (fhttp://osp.wikidot.com/manualsractal flame editor)

Inkscapes

Inkscape

mathmap

mathmap is a plugin for Gimp, which will allow you, among other things, to create the Escher and Droste effect, famous for its illusion, making an impossible World look real, as the mind has difficulty in discovering the incoherences of the picture. To get more details about it look in: Escher and Droste Effect

The MathMap Language Reference Manual

mathmap for windows Installing mathmap in Windows

A logarithmic image transformation An image transformation method, first used by the artist M.C. Escher, and described by Lenstra et al. is generalized for use in a graphics program.

The theory behind Stereographic Projections

examples of code of mathmap

Escher code for mathmap

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