Canon Kabushiki Kaisha

Yusuke Komano

Kiichiro Takahashi

Hirokazu Tanaka

Tetsuya Edamura

Wakako Tanaka

Hideki Nakanishi

Yohei Miyata

An image processing apparatus includes a management unit and a plurality of image processing modules. Each of the image processing modules performs image processing. The management unit manages a processing status of each of the image processing modules. The number of colors and the number of pixels for each of the colors are set as a processing unit for each of the image processing modules, and each of the image processing modules starts the image processing using the processing unit which is set, on the basis of the processing status of a previous image processing module among the processing statuses managed by the management unit.

Parallel processing of image data

A control unit of a printing apparatus includes a data transfer unit forming a first error detection code generation unit and a second error detection code generation unit. A printhead of the printing apparatus includes an error detection unit including a first data reception unit for performing error detection based on a first error detection code and transfer data synchronized with a leading edge, and a second data reception unit for performing error detection based on a second error detection code and the transfer data synchronized with a trailing edge.

Data communication system, data transmission apparatus, and data reception apparatus

A recording apparatus is capable of forming an image on a recording medium by using a recording head including first and second recording element arrays for one color component wherein each recording element array includes a plurality of recording elements arranged therein. To perform, in a short time, processes including converting of multilevel data to binary data and assigning of the binary data to the recording element arrays, a multilevel data buffer stores multilevel data, a reading unit reads the multilevel data stored in the multilevel data buffer, and a production unit produces binary data from the multilevel data by using a code table including a plurality of code sets depending on a gray level wherein each code set includes codes corresponding to the first and second recording element arrays. A transferring unit transfers the binary data produced by the production unit to corresponding recording element arrays.

Recording apparatus

A data processing apparatus determines a color range based on a dot counting value of a number of colors smaller than a number of colors subjected to thinning processing. Thus, even if the number of ink colors subjected to the thinning processing is great, a processing load of the determination of the color range can be reduced.

Data processing apparatus, data processing method, and storage medium for effecting recording on a recording medium by applying a plurality of recording agents with relative scanning between a recording unit for applying the recording agents and the recording medium

Textures in a printed image are reduced with a configuration that, provided that a matrix made up of a plurality of dot arrangement patterns is treated as a unit, binarizes image data is repeatedly applying such a matrix to the image data. Specifically, when a shift value K=k, a shift process calculates X+kY for the position (X, Y) of each cell in a 4&#xd7;4 base matrix. The dot arrangement patterns are then shifted overall such that the cell where the value is k from among these values moves to the position (0, 0). The shift process is conducted while setting different shift values for every repeated use of the base matrix. As a result, regular textures are decreased in the case of using a base matrix made up of a gradation value Lv1 on a pixel area.

Data processing apparatus and print data generating method

Data processing apparatus, data processing method, and storage medium capable of suppressing an increase in processing load in determination of a color range

A recording apparatus configured to cause a recording head to move and scan in a reciprocating manner includes a buffer configured to store raster data including multivalued data, a table in which a plurality of dot patterns is defined for a value of the multivalued data and including a dot pattern corresponding to the value, a first information storage unit configured to store an initial value of the dot pattern according to a direction of scanning by the recording head and the value of the multivalued data, a second information storage unit configured to store information indicating an empty raster, and a generation unit configured to, based on the initial value stored by the first information storage unit and the table, read the multivalued data from the buffer and generate a dot pattern based on the read multivalued data.

Growing community of inventors

Yokohama, Japan

Yusuke Komano