Patent ID: 11900507
Assignee: AKZO NOBEL COATINGS INTERNATIONAL B.V.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G  H

Claim 12:
13. A system for generating a visualization of a stained wood substrate, said system comprising:
a) a receiver arranged for receiving an image of a wood substrate, which wood substrate is to be stained;
b) a divider arranged for dividing the range of colors that is present in the image into a plurality of color bands, and subdividing the image into a plurality of sub-images, each sub-image corresponding to the portion of the image having a color falling in a respective one of the color bands;
c) a first retriever arranged for, for each sub-image, retrieving a reflectance curve representative for the wood substrate for the color corresponding to the sub-image;
d) a second retriever for retrieving absorption and scattering values for the stain;
e) a determining unit arranged for, for each sub-image, determining the reflectance curve representative for the stained wood based on the absorption and scattering values for the stain and the reflectance curve for the wood substrate for that sub-image; and
f) generator arranged for, for each pixel of each sub-image, determining a color based on the reflectance curve representative for the stained wood, resulting in a generated image representative of the wood substrate after applying the stain.