Fuji Xerox Co., Ltd.

Nec Electronics Corporation

Akihiro Ito

Yasunari Kishimoto

Yasuki Yamauchi

Hidetoshi Kawashima

Kiyoshi Une

Noriko Hasegawa

Ryosuke Higashikata

Yuichi Nishikuni

Toshio Koriyama

Yousuke Tashiro

Toshie Kobiyama

Toshihiro Iwafuchi

Junichi Shimizu

Koji Aikawa

Ryosuku Higashikata

Tomoko Taguchi

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 signal processing apparatus includes a total amount calculating unit, a limit value calculating unit and a correcting unit. The total amount calculating unit calculates a total amount value of an input color signal in an output device color space which has, as color components, colors of coloring materials used in an output device. The limit value calculating unit calculates a limit value for limiting a total amount of a color signal, in accordance with the calculated total amount value. The correcting unit corrects the input color signal in the output device color space so that the total amount value of the input color signal becomes the calculated limit value or less.

Color signal processing apparatus, color signal processing method, color conversion apparatus, and computer-readable medium for mapping colors of an input color signal to colors of an output device color space

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

The color processor is provided with: a conversion source color data acquiring part for acquiring conversion source color datasets in a first color space; a gamut storage for storing a gamut; a determining part for determining whether or not each of the conversion source color datasets exists in the gamut; a first color conversion processor for performing color conversion processing on each of conversion source color datasets A in the conversion source color datasets by use of a color conversion characteristic model, the conversion source color datasets A being determined to exist in the gamut; and a second color conversion processor for performing color conversion processing on each of conversion source color datasets B in the conversion source color datasets by use of color conversion correspondence, the conversion source color datasets B being determined not to exist in the gamut.

Color processor, computer readable medium and color processing method

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.

Image processing apparatus and image processing method

An image forming device that carries out color reproduction using plural of color materials having: a setting unit setting a color material curbing mode that curbs an amount of color material; and a color information inputting unit that inputs input color information. The image forming device further has a converting unit that, when the color material curbing mode is set by the setting unit, converts the input color information inputted by the color information inputting unit into output color information in a color material curbing region, on the basis of correspondence relationships that are set in advance such that a region that is color-reproducible by the image forming device is kept within the color material curbing region that is narrowed such that an amount of the color material is curbed.

Image processing device and an image processing method for curbing the amount of color material consumed and suppressing a deterioration in image quality

A color conversion device for color-converting an input image signal in an input color reproduction region of a source device, in a predetermined color space, by mapping the input image signal into an output color reproduction region of a destination device in the predetermined color space, comprising: a calculation portion for calculating a mapping destination in the output color reproduction region of a pre-specified characteristic point in the input color reproduction region; a correction portion for correcting the output color reproduction region such that a region including a saturation higher than the calculated mapping destination is eliminated; and a mapping portion for mapping the input image signal into the corrected output color reproduction region, is provided.

Color conversion device, color conversion method and color conversion program

An SC-type optical receptacle includes a first and a second holder each having a hollow chamber longitudinally penetrating therethrough, and a hollow cylindrical sleeve fitted in the chamber of the holders to thereby retain the frontal facets of a pair of ferrules so as to keep the frontal facets butted to each other. The wall thickness of the sleeve is constant over the entire length thereof, and is not less than 0.55 mm.

Optical receptacle and optical receptacle module

An average calculating section calculates an average of nine pixel values of each pixel block. With an assumption that the average value is expressed by 9 bits as a.sub.1 a.sub.2 a.sub.3 a.sub.4 a.sub.5 a.sub.6 a.sub.7 a.sub.8 a.sub.9 (a.sub.k : 1-bit value), a data allocating section allocates the respective bits a.sub.1 -a.sub.9 to 3.times.3 bits of each memory block of a two-value data storing section. After the nine bits a.sub.1 -a.sub.9 are read out from the two-value data storing section, a data reconstructing section combines those nine bits into the original average value, and repeatedly copies the average value to form a 3.times.3 pixel block.

Growing community of inventors

Ebina, Japan

Akihiro Ito