Canon Kabushiki Kaisha

Takashi Yabe

Kenichi Ohta

Manabu Ohga

In response to reception of instructions to print a color sample from a user, first, a printing unit is caused to perform calibration. Then, after the calibration is completed in the printing unit, control is performed so that print data is generated by execution of predetermined image processing for image data representing the color sample and printing processing of the print data is performed in the printing unit.

Control apparatus, control method, and storage medium for performing a predetermined image processing based on a result of calibration on image data

In processing to thicken a white thin line, the application range thereof is controlled to as to prevent a white thin line not intended by a user from being thickened. The thickening processing is performed for a line that has a density less than or equal to a predetermined density and includes a pixel having attribute information of a drawing object; and not performed for a line that has a density less than or equal to the predetermined density and includes a pixel not having attribute information of the drawing object.

Image processing apparatus, control method thereof and storage medium for performing thickening processing

An image processing apparatus includes a rendering unit, a reception unit, and a smoothing unit. The rendering unit executes rendering processing on page description language (PDL) data and generate bitmap data. The reception unit receives a setting of a rendering condition that is used in the rendering processing in order for the rendering unit to generate bitmap data in which a diagonal line, having a predetermined line width designated by the PDL data, is thicker than a horizontal line having the predetermined line width. The smoothing unit executes smoothing processing on the generated bitmap data. The smoothing unit executes smoothing processing of thickening the diagonal line within the bitmap data based on reception of the setting of the rendering condition by the reception unit, and the smoothing unit executes smoothing processing of thinning the diagonal line based on non-reception of the setting of the rendering condition by the reception unit.

Image processing apparatus, image processing method, and storage medium to switch between thickening and thinning a line drawn diagonally

A printing control apparatus performs binding processing for binding a plurality of sheets without using a staple to enable a user to easily separate a sheet from a sheet bundle after the binding processing. The printing control apparatus causes a binding unit to perform a binding processing for binding a plurality of sheets without using a staple, and then controls the binding unit to perform a binding processing for binding the plurality of sheets and a sheet different from the plurality of sheets.

Printing control apparatus, binding control apparatus, and method for controlling printing control apparatus

There are provided: an attribute determination unit configured to determine an attribute of an object included in image data to be subjected to printing processing; a color conversion unit configured to convert the color space of the image data into a color space compatible with a printing apparatus in accordance with the determination results obtained by the attribute determination unit; an edge determination unit configured to determine an edge of an object included in the image data whose color space has been converted by the color conversion unit; and a black monochromatization unit configured to convert the color of a pixel, which is a pixel of an achromatic object of the objects of the image data whose color space has been converted into the color space compatible with the printing apparatus and which is a pixel determined to be an edge by the edge determination unit, into black alone.

Apparatus, printing apparatus, control method of printing, and storage medium

An image processing apparatus determines whether a color image is formed by reading an original with a reading unit or input from an external apparatus, and sets a conversion method for converting the color image into a monochrome image such that when an image obtained by monochrome converting the color image is output onto a recording medium, security information included in the color image is difficult to be discriminated by human eyes, if the color image is formed by reading an original. If the color image is input from the external apparatus, the image processing apparatus sets a monochrome conversion method selected by a user. The apparatus then converts the color image into a monochrome image by the set monochrome conversion method.

Image processing apparatus and method for converting a color image into a monochrome image

An image processor and an image processing method which can minimize variation of color tone or density in an image after screen processing, even if semi-transparency has been specified. The image processor generates semi-transparent image data by overlaying a semi-transparent object on the PDL data to be rendered semi-transparent. Subsequently, screen processing is performed on the semi-transparent image data, by dither processing. Subsequently it is determined whether or not to define the screen processed semi-transparent image data as the image data for printing. If the result of determination is No, the halftone value of the semi-transparent object is modified to be larger than the current value.

Apparatus and method determining whether object specified to enable an underlying object to be seen there through is included in data to be printed, and medium having instructions for performing the method

A line width is derived based on the number of black pixels counted in an area set so that in a case where a first line width is finer than a second line width, the area for the lines having a first line width is set larger than for the lines having a second line width.

Image processing apparatus, image processing method, and storage medium for measuring line width of lines

An image processing apparatus includes a determination unit configured to determine whether a repetitive object is appropriate for being measured for density correction, a decision unit configured to decide, from pages including the repetitive object determined as appropriate for being measured for the density correction, a plurality of measurement pages to be measured for the density correction and a measurement position in the measurement pages, a measurement unit configured to measure density of the measurement position in the printed measurement pages, and a density correction unit configured to perform the density correction according to the measured density in the measurement pages for a page different from the measurement pages.

Image processing apparatus, control method for image processing apparatus, and storage medium for correcting density using a reusable object

Upon setting of a halftone process of an initial setting, there is such a problem that graininess deteriorates due to an aging change or an environmental change. To solve this problem, an image processing apparatus executes a halftone process on a test image for tone correction and prints the processed test image; forms a tone correction table in accordance with read values from the printed test image; obtains graininess from a read value of a low density portion of a tone correction patch of the test image for the tone correction; discriminates whether the obtained graininess exceeds a predetermined reference level; and changes a setting of the halftone process so as to reduce the graininess when it is discriminated that the obtained graininess exceeds the predetermined reference level.

Image processing method and apparatus utilizing halftone processing and test patch

The present invention provides an image processing apparatus able to shorten the processing time for automatic tone correction. The image processing apparatus includes: printing unit for conducting tone correction for bitmapping a print job, and then printing the tone-corrected bitmap data; automatic tone correcting unit for conducting automatic tone correction while the printing unit is processing the print job; and configuring unit for configuring an image quality mode for printing by the printing unit. Depending on the image quality mode configured by the configuring unit, the automatic tone correction conducted by the automatic tone correcting unit while the print job is being processed may not be conducted.

Image processing apparatus, image processing method, and program

Image processor and image processing method processing an image that includes a semi-transparent object or an image with periodically varying density

The type of profile used in color processing is determined and a calibration method of correcting color reproducibility of an output device is set selectively in accordance with the type of profile determined. In determining the profile type, it is determined whether the profile is a device-link profile.

Image processing apparatus and method

Input print data can assume one of a RGB color space, CMYK color space, and Gray color space. When graphic arts are principally to be printed, data of these color spaces is converted into CIE Color Space XYZ as a standard color space, and data of the standard color space is converted into a CMYK color space according to the Output Profile of a printer, which then prints the converted data. On the other hand, when office documents are principally to be printed, conversion into the standard color space is skipped, and input color space data is directly converted into a print color space CMYK, and the converted data is then printed.

Image forming apparatus and its control method, and computer program

A convenient environment flexibly coping with an environment in which an image forming apparatus capable of accepting a plurality of jobs is used can be constructed. For this purpose, in a job processing method of an image forming system including the image forming apparatus capable of accepting a plurality of jobs including a first job, print processing of the first job is performed by the image forming apparatus, and performance of print processing of a second job input after the first job can be prohibited based on checking information including at least any one of information associated with the first job subjected to the print processing and information associated with the second job although print processing of the second job can be performed by the image forming apparatus.

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Yokohama, Japan

Takashi Yabe