Canon Kabushiki Kaisha

Hidekazu Nakashio

Yukihiro Shindo

Hiroshi Tomii

An information processing apparatus includes a color measurement unit configured to perform color measurement on a color chart on which a job identifier is printed by a printing apparatus, and a verification processing unit configured to perform color verification on an image printed by the printing apparatus corresponding to the job identifier, based on a color measurement value measured by the color measurement unit, and the job identifier.

Information processing apparatus and control method for color verification

An information processing apparatus operable to perform colorimetry using a colorimeter that performs colorimetry of a colorimetric target based on reflected light obtained by irradiating illumination light onto the colorimetric target. The information processing apparatus loads a control program of a connected colorimeter before confirming a colorimeter to be used for colorimetry, executes the control program and receives an operation event of an operation performed on the connected colorimeter, and in response to the operation event, controls so as to confirm the colorimeter as a colorimeter to be used, or cause the colorimeter to wait until usage preparation, or confirm the colorimeter as a colorimeter to be used and request execution of calibration.

Non-transitory computer-readable storage medium storing colorimetric application program, colorimetric system, information processing apparatus, colorimeter, and method of controlling the same

The present invention is directed to an information processing apparatus, the method comprising: detecting whether a sheet is set in a measurement device in accordance with a detection condition; in a case where a sheet is detected as being set, measuring a patch formed on the sheet, using the measurement device; and setting a first detection condition for detecting that a sheet is set in the measurement device and a second detection condition for detecting that a sheet is not set in the measurement device to mutually-different conditions.

Information processing apparatus that detects measurement sheets for verifying color accuracy, control method thereof, and storage medium

An apparatus includes a print controller configured to perform color conversion on data using a color profile to generate image data for use in printing. The apparatus further includes a controller configured to acquire information regarding characteristic information of at least one illumination apparatus via a network, acquire first characteristic information based on the information regarding the characteristic information of the at least one illumination apparatus, acquire second characteristic information based on a color chart of the apparatus, and generate a color profile based on the first and second characteristic information.

Apparatus and method for controlling the same

To make it possible for a user to easily grasp, at the time of selection of a measuring device and a chart, which are necessary for color verification of a printer, whether or not it is possible to use them. Based on a chart configuration information indicating the configuration of a chart on which a color patch is arranged and specification information indicating specifications of a measuring device that is used for colorimetry of the color patch, determination processing to check whether it is possible to perform colorimetry is performed. Then, results of the determination processing are output to be presented to a user.

Information processing apparatus, control method thereof, and storage medium

An information processing apparatus comprises acquiring information related to a chart to be printed, the chart including a plurality of patches arranged adjacent to each other; causing a display unit to display a plurality of patch displays according to a plurality of expected colors of the plurality of patches being acquired, and a procedure of sequentially measuring, by a colorimetric apparatus, the plurality of patches formed on the chart; sequentially acquiring measured values measured by the colorimetric apparatus; and sequentially displaying objects indicating measured colors, based on the measured value for each patch being acquired in a manner superimposed on a part of the patch display according to a corresponding expected color such that a display portions of the expected colors are connected between at least one pair of adjacent patch displays even after the objects are displayed.

Information processing for colorimetry operation generating a chart with read result patches arranged adjacent corresponding reference patches

An object is to match the texture of a printed material, in addition to the tint, between different printing devices. In order to implement this object, a printed material output by a destination device is scanned and whether a certain area in image data obtained by the scan is an area printed in K color on the printed material or an area printed in CMY color mixture is determined. Then, based on the determination results, a printing parameter is determined.

Image forming apparatus, control method thereof, and storage medium

It is made possible to perform appropriate color matching between devices irrespective of whether a printed material is print-output in color or monochrome from a destination device. The color characteristic of the destination device is obtained by printing a chart in which a predetermined density pattern is formed in the destination device and reading the color of the chart. Next, whether the chart output from the destination device is color or monochrome is determined. Then, color conversion parameters for reproducing the color characteristic of the destination device in an adjustment device are determined by printing the color chart in a case where the printed material is determined that formed in color or printing the monochrome chart in a case where the printed material is determined that formed in monochrome in the adjustment device.

Image processing apparatus, image processing method, and storage medium

In a document represented by CMYK process colors, a color that a user wishes to remove is prevented from remaining without being removed by specified color removal, and even a color that the user does not wish to remove by rights is prevented from being removed.

Image processing apparatus, control method for controlling image processing apparatus, and storage medium

Image processing apparatus, control method for controlling image processing apparatus, and storage medium for removing a color from image data based on specified color

An image forming unit forms a toner image on an image carrier using toner. A transfer unit transfers the toner image to a sheet. A cleaner removes, from the image carrier, residual toner that was not transferred to the sheet by the transfer unit. In a detection mode for detecting a part of the image forming apparatus causing a streak, a controller may control the image forming unit to form a pattern on the image carrier, control the transfer unit so that the pattern passes through a transfer position without transferring the pattern to the sheet, control the cleaner to remove the pattern on the image carrier, and control the transfer unit to transfer a residual streak from the image carrier to the sheet. The residual streak occurs from the pattern image by causing an error of the cleaner.

Method for detecting fault location of image forming apparatus

For a dither matrix used when converting multivalued data into image data for an output apparatus, thresholds are set such that a first dot and a second dot alternately become larger until both of the first dot and the second dot reach a first dot size, after both of the first dot and the second dot reach the first dot size, the first dot becomes larger until the first dot reaches a second dot size while the second dot does not become larger, and, thereafter, the second dot becomes larger until the second dot reaches the second dot size while the first dot does not become larger, and after both of the first dot and the second dot reach the second dot size, the first dot and the second dot alternately become larger.

Image forming apparatus, dither matrix generation method, and dither matrix generation apparatus

An image forming apparatus that is capable of improving a specified-color removal process. An obtaining unit obtains color image data. A color specification unit specifies removal color. A specified-color removal unit removes color that is determined to be removed according to determination based on a brightness threshold and a first saturation threshold about the removal color from the color image data obtained.

Image forming apparatus performing specified-color removal process, control method therefor, and storage medium storing control program therefor

An image processing apparatus that includes a controlling unit for controlling executions of a single color calibration which is for correcting a reproduction characteristic of a single color image, formed by an image forming unit, according to measurement of a single color image formed by the image forming unit with a single color recording material and a multi-color calibration which is for correcting a reproduction characteristic of a multi-color image, formed by the image forming unit, according to measurement of a multi-color image formed by the image forming unit with a plurality of recording materials. It is decided to execute at least one of the single color calibration and the multi-color calibration in accordance with history information of the single color calibration executed by the controlling and then the calibration which has been decided on is executed by the controlling unit.

Image processing apparatus and image processing method

In the case where a request for printing is mage during execution of a continuous calibration, it is possible to interrupt a job without impairing the quality of printing by performing printing after executing an effective calibration in accordance with the kind of job, however, there is no mechanism to cancel each calibration in the standby state, and in order to make cancellation, it is necessary to wait until execution of each calibration is started, and therefore, the printing chances are lessened. There is provided a mechanism to display kinds of jobs in which printing is recommended at the point of time of end of each calibration and to enable cancellation of the calibration function of calibrations other than effective calibration after the effective calibration is executed.

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Warabi, Japan

Hidekazu Nakashio