Hi,

making nice colormaps can easily become a cumbersome task - especially in the
case of fractal images, where the harmonious arrangement of colors is essential.

Recently I stumbled across a nice little macro of Christophe Bouffartique
(Insects and... Spiderman -
http://www.irtc.org/ftp/pub/stills/2001-06-30/cbspider.zip). He used a photo to
get colormap entries for a wood texture.

With some tweaking this macro takes an image containing 1250 stripes of colors
and returns colormaps with up to 256 entries. The order of the entries can be
turned upside down too.

Ideas came from design, fashion, advertising, cosmetics, fabrics, furnishing,
website layouts, color palette collections, art, graphics, photos (e.g. sunsets
or tropic fishs) etc.

Shown are two examples together with the corresponding colormap.

I posted a similar test scene to pbsf
(http://news.povray.org/povray.binaries.scene-files/thread/%3Cweb.560285cd3b3e676746db0c30%40news.povray.org%3E/
).

Norbert Kern

Post a reply to this message

Attachments:
Download 'easy_colormapping.jpg' (883 KB)

Preview of image 'easy_colormapping.jpg'