Image processing apparatus, image processing method, and computer program product
AssigneeRicoh Company, Ltd.
InventorTakeshi SUZUKI
Life of this patent
Estimating the term…
Abstract
An image processing apparatus that generates a pattern of a colorless recording material to form an image using the colorless recording material includes: a region dividing unit that divides an input image into a plurality of regions as divided regions using a designated algorithm and pixel values of pixels that form the image; a spatial-frequency calculating unit that calculates spatial frequencies in each of the divided regions into which the image has been divided using pixel values in the divided region; and a pattern generating unit that generates a pattern of the colorless recording material, which is set to each of the divided regions, using the calculated spatial frequencies and a line pattern having a preset line width.
Claims19
An image processing apparatus that generates a pattern of a colorless recording material to form an image using the colorless recording material, the image processing apparatus comprising:
- a region dividing unit that divides an input image into a plurality of regions as divided regions using a designated algorithm and pixel values of pixels that form the image;
- a spatial-frequency calculating unit that calculates spatial frequencies in each of the divided regions using pixel values in the divided region;
- and
- a pattern generating unit that generates a pattern of the colorless recording material, which is set to each of the divided regions, using the calculated spatial frequencies and a line pattern having a preset line width.
An image processing method for causing an image processing apparatus to generate a pattern of a colorless recording material to form an image using the colorless recording material, the image processing method comprising:
- dividing an input image into a plurality of regions as divided regions using a designated algorithm and pixel values of pixels that form the image;
- calculating spatial frequencies in each of the divided regions using pixel values in the divided region;
- and
- generating a pattern of the colorless recording material, which is set to each of the divided regions, using the spatial frequencies calculated at the calculating and a line pattern having a preset line width.
A computer program product comprising a non-transitory computer-usable medium having a computer-readable program code embodied in the medium causing a computer to instruct an image processing apparatus that generates a pattern of a colorless recording material to form an image using the colorless recording material to function as an image processing method implemented therein, the image processing method comprising:
- dividing an input image into a plurality of regions as divided regions using a designated algorithm and pixel values of pixels that form the image;
- calculating spatial frequencies in each of the divided regions using pixel values in the divided region;
- and
- generating a pattern of the colorless recording material, which is set to each of the divided regions, using the spatial frequencies calculated at the calculating and a line pattern having a preset line width.
Dependencies are inferred from the claim text.