公开(公告)号：US10475230B2

公开(公告)日：2019-11-12

申请号：US15847054

申请日：2017-12-19

Applicant: TOPPAN PRINTING CO., LTD.

Inventor： Noriyuki Abe ,  Koichi Takase

IPC: G06T15/04 ,  G06T15/06 ,  G06T15/00 ,  G06T15/50

Abstract: A device for generating a simulation image including circuitry which obtains information including normal vector map and light source information about a source of light to be applied to a surface of a material, calculates incident light information about incident light to each of pixels in an image to be generated as simulation of a finish of a pattern including a picture and an uneven shape on the surface, calculates a radiance of reflected light from the surface with respect to each of the pixels in the image, based on calculation information including the incident light information, the normal vector map, diffuse reflectance information about the picture, gloss information indicating gloss of the surface, and observation condition information about the material, and controls display of the image based on the radiance of each of the pixels.

公开(公告)号：US12086905B2

公开(公告)日：2024-09-10

申请号：US17394911

申请日：2021-08-05

Applicant: TOPPAN PRINTING CO., LTD.

Inventor： Koichi Takase ,  Takashi Inamura ,  Takaya Tanaka

IPC: H04N1/60 ,  G01J3/50 ,  G06F3/048 ,  G06T11/00 ,  G09G5/02 ,  G09G5/06 ,  H04N5/57 ,  H04N9/64 ,  H04N9/69 ,  H04N9/73 ,  H04N23/83

CPC classification number: G06T11/001 ,  H04N1/60

Abstract: A method for generating color conversion information including providing a user with color sample information for determining a color sample of which color characteristic information is known, receiving, from the user, an image including the color sample determined by the color sample information in a lighting environment, and generating color conversion information which corresponds to the lighting environment and is correlated with the user, based on the image and the color characteristic information of the color sample determined by the color sample information. The color conversion information converts between color information and color characteristic information, the color information is information which corresponds to a lighting environment and indicates colors of an object in the lighting environment, and the color characteristic information indicates color characteristics of the object.