Image processing apparatus and image processing method

摘要

An image processing apparatus performs a density adjustment process for generating an image containing a copy-forgery-inhibited pattern image for warning against the use of copy products. To help users to easily adjust the density of a latent image portion and a background portion in the copy-forgery-inhibited pattern image, the image processing apparatus determines a density relationship of the latent image portion and the background portion by performing a plurality of adjustment operations, in combination, different in the amount of adjustment relating to the range of variable density in at least one of the latent image portion and the background portion, and sets, based on the density relationship, the density data of each of the latent image portion and the background portion in the data of the copy-forgery-inhibited pattern image.

主权项

1. An apparatus comprising a processor and a memory, the apparatus comprising:
a memory storing instructions and at least one processor which executes the stored instructions, the at least one processor being configured to act as: a setting unit configured to set characters and an identifying value, which has been selected from different identifying values by a user, to be used for printing out a copy-forgery-inhibited pattern image; and a causing unit configured to cause a printing unit to print out, on a first paper, a document image and the copy-forgery-inhibited pattern image corresponding to the set identifying value and including the set characters, wherein the causing unit is further configured to cause the printing unit to print out, on a second paper, different images and the different identifying values including the currently set identifying value, without the document image; wherein each image of the different images printed out on the second paper includes a first region and a second region having bigger dots than the first region, and a difference in density of the first and second regions in the each image is different, and at least one of the first region and the second region in the each image depicts the set characters.