Fuji Xerox Co., Ltd.

Hidetoshi Kawashima

Masahiko Kubo

Jun Koyatsu

Toshifumi Takahira

Kiyoshi Une

Akihiro Ito

Toshio Koriyama

Toshihiro Iwafuchi

Ryosuke Higashikata

Yasunari Kishimoto

Yasuki Yamauchi

Yuichi Nishikuni

Noriko Hasegawa

Atsushi Kitagawara

Yousuke Tashiro

Toshie Kobiyama

Taro Yokose

Kenji Hara

Toshiyuki Yano

Toru Misaizu

Jungo Harigai

Shinji Tabata

Masayuki Kaneda

Kota Matsuo

Akhiro Ito

An image forming apparatus includes: an image forming unit that forms an image on a recording material by ejecting ink; and an image processing unit that, in a case where information of a bar code image is included in image information for forming an image by the image forming unit, carries out a process of making a drop size of the ink used for pixels constituting an edge portion in the bar code image smaller than a drop size of the ink used for pixels constituting a portion other than the edge portion.

Image forming apparatus, image processing device and image forming method

A metallic color conversion unit performs color conversion on an input color value so that a color of a colorimetric value of a print result when a printer performs printing by using each of at least one process color toner by each corresponding amount, which is a conversion result obtained by performing the color conversion on the input color value in accordance with a metallic level designated, and by using a toner including a metallic particle by an amount, which is obtained by a metallic amount calculation unit in accordance with the designated metallic level, becomes close to a color of a colorimetric value of a print result when the printer performs the printing by using each of the at least one process color toner by each corresponding amount, which is a conversion result obtained by converting the input color value by a normal color conversion unit.

Image processing apparatus which performs color conversion based on metallic level designated

A color processing device includes a converter that converts a combination of values of N&#x2212;1 colors obtained by eliminating a specific color included in N colors from an input color signal expressing a color by a combination of values of the N colors, into a corresponding combination of values of M&#x2212;1 colors, N being 4 or larger, M being larger than N; and an output unit that, if a total value of the values of the M&#x2212;1 colors after the conversion by the converter and a value of the specific color included in the input color signal exceeds a predetermined limit value, changes a value of at least one of M colors obtained by adding the specific color to the M&#x2212;1 colors such that the total value becomes the limit value or smaller, and outputs values of the M colors as an output color signal.

Color processing device that converts combination of colors into larger number of combination of colors, color processing method, and storage medium

A color processing apparatus includes an obtaining unit, a setting unit, and a color converting unit. The obtaining unit obtains a predetermined corresponding relationship between total amount limit information regarding limitation of a total amount of inks of colors, and a combination in which, among droplet diameters of inks of colors ejectable to satisfy the total amount limit information, droplet diameters of at least two or more inks are made uniform, and the types of droplet diameters of inks of the colors are two or fewer types. The setting unit sets the combination of droplet diameters corresponding to the accepted ink total amount limit information, on the basis of the obtained corresponding relationship. The color converting unit converts a color in an input color gamut reproducible by an input device into a color in an output color gamut in accordance with the set combination of droplet diameters.

Color processing for converting an input color gamut into an output color gamut in accordance with a set combination of ink droplet diameters

A color processing apparatus includes a correction unit. When, among colors on a color gamut boundary from a lowest-lightness color on an achromatic color axis to a highest-chroma color in a predetermined color space in an output color gamut of an output device in the color space, there exist a high-lightness color whose lightness is higher than that of the highest-chroma color and a color with the same lightness as that of the high-lightness color but with different chroma, and when there exists a low-lightness color whose lightness is lower than that of the lowest-lightness color on the achromatic color axis in the color space, the correction units corrects the low-lightness color to a higher lightness side higher than that of the lowest-lightness color on the achromatic color axis.

Color processing apparatus and method, and non-transitory computer readable medium

An image processing apparatus includes a setting unit, a generating unit, and a converting unit. The setting unit sets a gloss level of each of plural areas into which an image is divided. The image is formed by forming plural toner images having different colors using plural first toners and at least one second toner having at least one same color as the first toners and by fixing the plural toner images onto a recording medium so as to be superimposed on one another. The generating unit generates multi-level image data for each of the first toners and the at least one second toner in accordance with the gloss levels set by the setting unit. The converting unit converts multi-level image data of toners having the same color into binary image data. The converting unit also converts multi-level image data of toners having different colors into binary image data.

Image processing apparatus, image forming apparatus, and computer readable medium storing program

An image processing apparatus includes a setting unit and a correcting unit. The setting unit sets a gloss level of an image to be formed by forming plural toner images using a transparent toner and plural color toners having different colors and by fixing the plural toner images onto a recording medium in such a manner that the plural toner images are placed on top of one another on the recording medium. The correcting unit corrects image data defining density values per pixel of the toner images formed using the plural color toners of the respective colors so that a total density value that is a sum of a density value per pixel of the toner image formed using the transparent toner and density values per pixel of the toner images formed using the plural color toners of the respective colors may not exceed a predetermined threshold.

An image processing device includes a first output unit that performs predetermined image processing for image data, and outputs image data having m bits per pixel; a second output unit that performs pseudo gradation-increase processing by a dither method or a multilevel error diffusion method for the output image data, and outputs image data having n bits per pixel, where n&#x3c;m; and a compression unit that compresses the output image data. When a dither matrix for the dither method or a filter for the multilevel error diffusion method used by the second output unit for the pseudo gradation-increase processing is divided into plural pixel groups each including plural adjacent pixels and when each pixel group serves as a unit, processing parameters respectively set for pixels in the same pixel group are similar as compared with processing parameters respectively set for pixels in different pixel groups.

Image processing device, image processing method, and storage medium for performing pseudo graduation-increased processing

There is provided an image file creation device including: an obtaining section that obtains image data forming a color image, conversion conditions for converting the image data into color data of a device-independent color space, and basic viewing conditions for viewing the color image; an input section that inputs target viewing conditions for viewing a formed image that is formed by using the image data; and a creation section that creates an image file containing a main data region for storing the image data, the conversion conditions and the basic viewing conditions, and a sub-data region for storing the target viewing conditions.

Image file creation device, method and program storage medium, image processing device, method and program storage medium, and image processing system

A bi-color-image-signal generating apparatus includes a reception unit and a generating unit. The reception unit receives specification of a specified color in a case of generating a bi-color image signal from a color image signal. The bi-color image signal has color components representing two colors which are an achromatic color and a chromatic color that is the specified color. The generating unit obtains an amount of each color material which is to be used to form an image having the two colors from the color image signal on the basis of a brightness of the specified color, an amount of each color material which is necessary for image formation using the specified color, and a brightness of the color image signal, and generates the bi-color image signal from the color image signal using the obtained amount of each color material.

Bi-color-image-signal generating apparatus, method, and computer program product, and image forming system, using relative brightness of two specified colors

An image processing apparatus includes: a printing unit that prints image information containing two or more colors with a plurality of color information corresponding to a plurality of specified colors; and a changing unit that changes, when a total toner amount is larger than a threshold value, at least one of the plurality of color information corresponding to one of the plurality of specified colors so that the total toner amount to be used for printing the image information is smaller than the threshold value.

Image processing apparatus, image forming apparatus, image processing method and computer readable medium for controlling toner consumption

An image processing apparatus includes a storage unit, a judgment unit and a conversion unit. The storage unit stores a reference color characteristic. The judgment unit judges as to whether or not a difference between an input color characteristic that is a color characteristic of input image data and the reference color characteristic is equal to or less than a predetermined threshold value. The conversion unit converts the input image data into a color characteristic that can be reproduced by an image reproducing apparatus, based on the reference color characteristic if the difference is equal to or less than the predetermined threshold value.

Image processing apparatus, image reproducing system and computer-readable medium

An image processing apparatus includes a first print information receiving unit for receiving first print information including image data and color information, a color conversion parameter generating unit that generates a color conversion parameter for converting a color signal of the image data to a color signal of a color space fixed in advance, based on the color information included in the first print information, and a second print information transmitting unit that generates second print information by adding the color conversion parameter to the first print information. Also disclosed is an image processing method.

Image processing apparatus and method, image output apparatus, image processing system, recording medium in which image processing program is stored, and recording medium in which image output program is stored

A color conversion device is provided including: a setting unit that sets a conversion mode, based on characteristics of a source color region related to an input image signal in a color space, for converting the input image signal to an image signal that falls within at least one color region from a plurality of color regions that have been defined in the color space; and a conversion unit that converts the input image signal in accordance with the conversion mode into the image signal that falls within the color region.

Device, method, and program storage medium for color conversion, device, method, and program storage medium for color conversion coefficient generation

In an image processing apparatus, a first conversion unit converts, on the basis of an input device profile, input data into first device-independent data expressed by a color space that is independent of an apparatus. A storage unit stores plural conversion profiles for converting using a color appearance model in the color space that is independent of the apparatus in correspondence with plural device characteristics that are dependent on apparatuses. A selection unit selects a conversion profile corresponding to characteristics of the input device, characteristics of an output device, observation conditions of the input data and the output data. A second conversion unit converts, on basis of the selected conversion profile, the first device-independent data into second device-independent data. A third conversion unit converts the second device-independent data into the output data on the basis of an output device profile.

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Kanagawa, Japan

Hidetoshi Kawashima