realistic color video presentation Gonio-apparent

摘要

A computer-implemented method for presenting on a display device colors a realistic color of a paint coating, said method comprising the following steps: A) identify color values ​​L *, a * b * in at least three different angles for a paint coating from a data base containing said values ​​at the at least three angles or by measuring said color values ​​of a paint coating at at least three angles; B) convert the at least three color values ​​L *, a * b * tri-stimulus angle in X, Y, Z values; C) developing an equation continuous function for each of the tri-stimulus values ​​X, Y, Z against specular angle by implementing computer techniques using curve fitting or solid color curve fitting metallic color and calculate the range represent angles; D) calculate a range of aspecular angles required to display an object being produced under the chosen orientation of object, light source and viewer; E) calculate R, G, B values ​​from the values ​​of tri-stimulus over the range of aspecular angles and determine maximum saturation of the R, G, B and if the maximum values ​​R, G, B are all lower than the maximum values ​​R, G, B allowed for the display device color being used to view color resulting from the R, G, B continue to step F), if the R, G, B greater than or equal to the maximum values ​​of R, G, B allowed for the display device color being used return to step B) and multiply the X, Y, Z by a normalization coefficient of less than 1 and iterate steps C), D) and e) to determine the maximum normalization coefficient that prevents the R, G, B color values ​​are equal to or exceed the allowable values ​​of R, G, B for the device color display being used; F) determine statistical texture function from a database in which you can search, or generate a texture function from instrumental measurements of the paint coating to be simulated; and G) apply the statistical texture function to the R, G, B from step E) to modify said values ​​and present color pixel in the display device colors based on modified values ​​of R, G, B for show realistic color of the paint coating.