Image processing apparatus and image processing method
AssigneeCanon Kabushiki Kaisha
InventorsHiromitsu Nishikawa, Akira Shibasaki
Life of this patent
Estimating the term…
Abstract
An image processing apparatus includes a conversion unit configured to convert image data corresponding to a pixel of interest in an image into color material data corresponding to a color material amount of a chromatic color material, and a generation unit configured to generate color material data corresponding to a color material amount of an achromatic color material at the pixel of interest in such a manner that the color material data corresponding to the color material amount of the achromatic color material at the pixel of interest is different from color material data corresponding to a color material amount of the achromatic color material at a pixel adjacent to the pixel of interest.
Claims13
An image processing apparatus comprising:
- conversion means configured to convert image data corresponding to a pixel of interest in an image into color material data corresponding to a color material amount of a chromatic color material;
- generation means configured to generate color material data corresponding to a color material amount of an achromatic color material at the pixel of interest in such a manner that the color material data corresponding to the color material amount of the achromatic color material at the pixel of interest is different from color material data corresponding to a color material amount of the achromatic color material at a pixel adjacent to the pixel of interest;
- and
- random number generation means configured to generate a random number,
- wherein the generation means generates the color material data corresponding to the color material amount of the achromatic color material at the pixel of interest based on the random number.
An image processing apparatus comprising:
- conversion means configured to convert image data corresponding to a pixel of interest in an image into color material data corresponding to a color material amount of a chromatic color material;
- generation means configured to generate color material data corresponding to a color material amount of an achromatic color material at the pixel of interest in such a manner that the color material data corresponding to the color material amount of the achromatic color material at the pixel of interest is different from color material data corresponding to a color material amount of the achromatic color material at a pixel adjacent to the pixel of interest;
- and
- input means configured to input an achromatic color material pattern including a plurality of pieces of color material data respectively corresponding to a plurality of different color material amounts of the achromatic color material,
- wherein the generation means generates the color material data corresponding to the color material amount of the achromatic color material at the pixel of interest based on the achromatic color material pattern.
An image processing method comprising:
- converting image data corresponding to a pixel of interest in an image into color material data corresponding to a color material amount of a chromatic color material;
- generating color material data corresponding to a color material amount of an achromatic color material at the pixel of interest in such a manner that the color material data corresponding to the color material amount of the achromatic color material at the pixel of interest is different from color material data corresponding to a color material amount of the achromatic color material at a pixel adjacent to the pixel of interest;
- and
- generating a random number,
- wherein the color material data corresponding to the color material amount of the achromatic color material at the pixel of interest is generated based on the random number.
Dependencies are inferred from the claim text.