US 12,321,648 B2
Image processing device for previewing image to be printed on 3D object
Takuya Ono, Nagano (JP); Takahiro Kamada, Nagano (JP); Mitsuhiro Yamashita, Nagano (JP); and Yuko Yamamoto, Nagano (JP)
Assigned to Seiko Epson Corporation, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Oct. 2, 2023, as Appl. No. 18/479,148.
Claims priority of application No. 2022-159539 (JP), filed on Oct. 3, 2022.
Prior Publication US 2024/0111464 A1, Apr. 4, 2024
Int. Cl. G06F 3/12 (2006.01); G06T 15/04 (2011.01); G06T 15/50 (2011.01); G06T 15/80 (2011.01)
CPC G06F 3/1208 (2013.01) [G06F 3/1256 (2013.01); G06T 15/04 (2013.01); G06T 15/506 (2013.01); G06T 15/80 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An image processing device for generating a rendering image of a print medium and an image printed on the print medium, the image processing device comprising:
a processor configured to acquire image data in which the image is expressed in a first color space,
the processor being configured to use a color conversion profile prepared in advance to convert the image data into an expression in a second color space used during rendering and to generate converted image data,
the processor being configured to acquire parameters necessary for performing physical based rendering of the print medium, on which the image is to be printed, as a 3D object,
the processor being configured to use the converted image data and the parameters to perform physical based rendering of the print medium and the image printed on the print medium and to generate a rendering image corresponding to an appearance, in a virtual space, of the print medium and the image printed on the print medium,
the parameters including first data relating to a shape of the print medium under a light source in the virtual space and second data relating to image formation on a surface of the print medium, and
the second data including texture parameters representing a texture of the surface of the print medium, the texture parameters including a normal line map that stores a plurality of normal line vectors in association with a plurality of irregularities on the surface of the print medium and a clear coat layer parameter indicating presence or absence, thickness or transparency of a clear coat layer forming the surface of the print medium.