Copy-forgery-inhibited pattern image generation method and image processing apparatus
AssigneeCanon Kabushiki Kaisha
InventorTOMOCHIKA MURAKAMI
Life of this patent
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Abstract
A combination of a latent-image pattern which forms a latent-image part and a background pattern that forms a background-image part is determined so that the latent-image part and background-image part have equal print densities. The determined latent-image pattern and background pattern, color information used to determine a color of the copy-forgery-inhibited pattern image, input image information as an image to be processed, copy-forgery-inhibited pattern basic information used to designate the latent-image part and background-image part, and camouflage region designation image information used to designate a camouflage region are input. A copy-forgery-inhibited pattern image is generated on the basis of the input information.
Claims28
(canceled)
An printing method comprising:
- printing sample images each of which includes a scattered dot pattern part and a concentrated dot pattern part in which dots are more concentrated than the scattered dot pattern, and has a density difference between the scattered dot pattern part and the concentrated dot pattern part different from that of other sample images;
- receiving identification information identifying one of the printed sample images from the user;
- and
- printing on a sheet, an image of a document and an image which includes a scattered dot pattern part whose density corresponds to a density of the scattered dot pattern part of the sample image identified by the received identification information and a concentrated dot pattern part in which dots are more concentrated than the scattered dot pattern part and whose density corresponds to a density of the concentrated dot pattern part of the sample image identified by the received identification information.
An apparatus which control a printer to print an image, comprising:
- a print controller which controls the printer to print sample images each of which includes a scattered dot pattern part and a concentrated dot pattern part in which dots are more concentrated than the scattered dot pattern, and has a density difference between the scattered dot pattern part and the concentrated dot pattern part different from that of other sample images;
- and
- a user interface which receives identification information identifying one of the printed sample images from the user,
- wherein the print controller can further controls the printer to print on a sheet, an image of a document and an image which includes a scattered dot pattern part whose density corresponds to a density of the scattered dot pattern part of the sample image identified by the received identification information and a concentrated dot pattern part in which dots are more concentrated than the scattered dot pattern part and whose density corresponds to a density of the concentrated dot pattern part of the sample image identified by the received identification information.
Dependencies are inferred from the claim text.