Method and apparatus for coloring of recoloring of visual image

Details Method and apparatus for coloring of recoloring of visual image Method and apparatus for coloring of recoloring of visual image

1993-09-09

1995-04-18

Jankus, Almis

395132, G06F 1562

Patent

active

054085950

ABSTRACT:
An image coloring/recoloring apparatus can provide natural-looking color images of an object illuminated by a source color. An input color image or a shaded image (grey scale image) which corresponds to the object is input to the coloring/recoloring apparatus. The coloring/recoloring apparatus logarithmically transforms a pixel sub-region corresponding to all or a portion of the object into intermediate color density data, which lies on a straight line in a color density space. This straight line starts at a point in the color density space corresponding to the source color and has a direction corresponding to the object's absorptive properties. By inputting a desired color and/or a new source color, it is possible to create a new image, which shows the object with the sub-region painted the desired color while being illuminated by the new source color.

REFERENCES:
patent: 4843599 (1989-06-01), Bucker
patent: 5025405 (1991-06-01), Swanson
patent: 5058040 (1991-10-01), Tajima

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