Canon Kabushiki Kaisha

Shuji Ozawa

Yutaka Murakami

Kiyohiro Tsunekawa

Kunio Okada

Takeshi Utsunomiya

Akio Sugaya

Shigeki Hirooka

Hideyuki Kitani

Masakazu Taneda

An apparatus includes a determination unit configured to determine whether rendering positions of two pieces of rendering data, each representing a semitransparent state by including pixels that are to be rendered by a rendering unit and pixels that are not to be rendered, overlap, and a control unit configured to, if it is determined by the determination unit that the rendering positions of the two pieces of rendering data overlap, perform control such that one of the two pieces of rendering data is not rendered by the rendering unit. Based on the level of the overlap between a plurality of semitransparent objects, the apparatus converts each hatch pattern so that image quality deterioration does not occur.

Image processing apparatus, information processing method, and storage medium for processing rendering data including a pixel pattern for representing a semitransparent object

An image processing method includes receiving image data including a color lookup table, and rendering the image data without referring to the color lookup table for each pixel when a combination of color values defined in the color lookup table is a predetermined combination.

Image processing for rendering an indexed color image

First intermediate data is generated from print data and character edge data serving as second intermediate data is generated by extracting edge sections of a character from the print data. A rendering process is applied to the first intermediate data and a dither matrix with a first number of lines is used to apply a pseudo halftone formation process to data after the rendering process to generate a first pseudo-halftone image. A rendering process is applied to the second intermediate data and a dither matrix with a second number of lines greater than the first number of lines is used to apply a pseudo halftone formation process to data after the rendering process to generate a second pseudo-halftone image. A pseudo-halftone image obtained by an OR operation of the first pseudo-halftone image and the second pseudo-halftone image is output.

Image processing apparatus and processing method of the image processing apparatus

When a printing apparatus completes reception of all print data, a reception unit in the printing apparatus, which receives a cancel notification from a cloud print service, receives the cancel notification by sending a print data status request from the printing apparatus to the cloud print service, or by monitoring a file name of print data which currently undergoes print processing and checking if the file name is changed to a file name indicating a cancel.

Print server adapted to implement a pull-printing technique with a printing apparatus

An image forming apparatus includes a reception unit which receives an electronic document, a generation unit which generates a display list containing edge information indicating the outline of an object contained in the received electronic document, fill information for controlling whether to fill in the inside of the outline of the object, and control information for controlling image formation of each page that forms the electronic document, an edge position extraction unit which obtains the intersections of the object and the line based on the edge information, and extracts the positions of the edges of the object on the line, and a setting unit which sets, based on the data amount of extracted edges and the data amount of edges in the page that is predicted by analyzing the control information, a threshold for controlling extraction of the edges to fall within a predetermined data amount.

Image forming apparatus, image forming apparatus control method, and program

A print data processing apparatus includes a first processor configured to read print data and perform print data processing on the read print data, and a second processor which operates in parallel with the first processor and is configured to stop the print data processing if an instruction to wait is input during the print data processing, to execute processing different from the print data processing if an instruction to execute the different processing is issued by the time the wait is released, and to execute the print data processing if the wait is released.

Print data processing apparatus, print data processing method, and storage medium

To speedily accomplish print processing, a computer produces print data processible in a printing apparatus based on application data if the application data is created, regardless of user's print instruction. The produced print data is stored in a storage region corresponding to a folder that stores the created application data. If the print instruction is entered by a user, the printing apparatus can promptly execute the print processing using the print data corresponding to the print instruction.

Information processing apparatus, image forming method, and computer readable storage medium storing a program for reducing print processing time

According to the present invention, a security management program which is recorded in a computer readable recording medium and is used to control access to target data in accordance with a security level of a device and an access right of a user, comprises a code of a user authentication step of setting the access right of the user with reference to a saved user authentication history when access to an authentication server cannot be made; and a code of a security level setting step of determining a security level of the device in accordance with a state of the device, and saving the determined security level.

Security management method and apparatus, and security management program

An output apparatus includes a cartridge which contains a recording material. A detector is provided in the apparatus for detecting the remaining amount of the recording material in the cartridge. A controller is provided in the apparatus for storing the cumulative consumed amount of the recording material in a non-volatile memory unit. Thus, the remaining amount of the recording material is determined.

Printing apparatus using recording material cartridge with non-volatile memory

To allow high-speed image data generation processing by shortening time required to generate an object having a predetermined gradation pattern over a number of lines in the vertical or horizontal direction in gradient fill object drawing processing, an image processing apparatus of this invention detects the number of lines of gradation in the horizontal or vertical direction, calculates only the first line of detected gradation, copies the calculation value of the first line, and embeds it in the second and subsequent lines, thereby shortening time required to generate objects of the second and subsequent lines and allowing high-speed generation processing.

Growing community of inventors

Hino, Japan

Shuji Ozawa