Disclosed is an anti-counterfeiting printed material including: a background part for analyzing a distribution of Cyan Magenta Yellow Black (C/M/Y/K) after performing first color separation of an original image into C/M/Y/K, and printing the original image as C/M/Y/K lines each having an included angle preset according to each distribution; and a latent image part formed in a first region of the background part, and printed with the number of C/M/Y/K lines in a ratio different from the number of C/M/Y/K lines of the background part according to each distribution by performing secondary color separation, into C/M/Y/K, of a second region spaced apart from the first region by a preset distance.

Identification information corresponding to a network resource is extracted from input document data. It is determined whether access to the network resource is appropriate based on the identification information. Based on a result of determination, the output of the document data is restricted, or at least part of the identification information is changed, and the document data is output.

A determination device selects a determination area included in a captured image acquired by an imaging data acquisition device, extracts a determination image of a preset target color from the selected determination area, binarizes gradation data of the target color in pixel regions constituting the extracted determination image by using a binarization threshold suitable for each determination area to acquire binarized reference binary data of the determination image, converts the gradation data of the target color in the pixel regions constituting the extracted determination image with respect to a dark portion of the determination image to acquire converted gradation data, binarizes the acquired converted gradation data by using the binarization threshold to acquire comparison binary data, and acquires, based on comparing the reference binary data with the comparison binary data, a determination value for determining a printing method used to produce a printed surface of a printed product.

Apparatuses of a security device with chaosmetric patterns are disclosed. In one aspect, embodiments of the present disclosure include a security device having a physical surface having formed thereon a composite pattern. The composite pattern can be created from overlap of the imprinting of a first halftone pattern and a second halftone pattern. The first halftone pattern can be created from a first basic building block which forms chaosmetric artifacts in the physical surface upon printing.

A determination system includes an imaging data acquisition device that captures an image of a printed surface of a printed product to acquire imaging data of the captured image, and a determination device that determines, based on the imaging data, a printing method used to produce the printed surface of the printed product for which the image is captured by the imaging data acquisition device. The determination device selects a plurality of determination areas included in the captured image, acquires determination data based on a line-segment image included in each of the determination areas, compares the acquired determination data between two determination areas, and acquires, based on a result of the comparison, a determination value for determining a printing method used to produce the printed surface of the printed product, and determines, based on the determination value, a printing method used to produce the printed surface of the printed product.

An information processing apparatus includes a processor configured to: acquire an image serving as a target of processing and information about the image; and if the information about the acquired image satisfies a condition, perform to a destination an inquiry as to whether the destination grants outputting of the image, and output the image if a notification that the destination has granted the outputting of the image is received from the destination.

An object is to provide a copy function that guarantees intensity of embedded information. At the time of copying a printed material, embedded information is extracted from a scanned image obtained by scanning the target printed material. Then, in a case where it is confirmed that the copy-target printed material is an authentic document by the extracted embedded information, the embedded information extracted from the scanned image is reconfigured and printed and output.

Provided is an image processing apparatus for extracting embedded information from a printed document printed by an electrophotographic method, including: a first obtaining unit configured to obtain first image data by reading the printed document while applying light to the printed document; a second obtaining unit configured to obtain second image data by reading the printed document without applying light to the printed document; a determination unit configured to determine whether a high color density region of which density is higher than a predetermined value is present in the printed document; and a decision unit configured to decide which of the first image data and the second image data to set as image data to be used to extract the embedded information, according to the determination made by the determination unit.

Provided is an image processing apparatus for extracting embedded information from a printed document, including: a first obtaining unit configured to obtain a printing method of the printed document; a second obtaining unit capable of obtaining first image data by reading the printed document while applying light to the printed document; a third obtaining unit capable of obtaining second image data by reading the printed document without applying light to the printed document; and an extraction unit configured to extract the embedded information by using at least one of the first image data and the second image data according to the printing method obtained by the first obtaining unit.

Provided is an image processing apparatus for extracting embedded information from a printed document printed by an electrophotographic method, including: a first obtaining unit configured to obtain first image data by reading the printed document while applying light to the printed document; a second obtaining unit configured to obtain second image data by reading the printed document without applying light to the printed document; a determination unit configured to determine whether a high color density region of which density is higher than a predetermined value is present in the printed document; and a decision unit configured to decide which of the first image data and the second image data to set as image data to be used to extract the embedded information, according to the determination made by the determination unit.