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

Claim 0:
1. A computer implemented method for generating a visualization of a stained wood substrate, said method comprising the steps:
a) receiving, with a receiver, an image of a wood substrate, which wood substrate is to be stained;
b) dividing, with a divider, the range of colors that is present in the image into a plurality of color bands;
c) subdividing, with the divider, 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;
d) for each sub-image, retrieving, with a first retriever, a reflectance curve representative for the wood substrate for the color corresponding to the sub-image;
e) retrieving, with a second retriever, absorption and scattering values for the stain;
f) for each sub-image, determining, with a determining unit, 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
g) for each pixel of each sub-image, determining, with a generator, 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.