Image processing method for stimulating structure in relief, and device for carrying out the method
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United States of America Patent
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Oct 10, 2000
Grant Date -
N/A
app pub date -
May 13, 1998
filing date -
Aug 25, 1995
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Abstract
The invention concerns an image-processing method and system for the simulation of structure in relief in image of objects having at least one polygonal surface. The polygonal surface is divided up into a large number of raster elements, and for each raster element, an inclination value determining the inclination of the local surface normal is read out of relief-structure matrix. From the inclination value and either the normal to the polygonal surface or the local normal to the surface, the inclined local normal is calculated and the brightness and/or color of each raster element calculated as a function of the direction of view of the observer, the illumination conditions and the angle of the inclined local normal.
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Cited Art Landscape
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