Fuji Xerox Co., Ltd.

Gtx Corporation

Fuji Xerox Corporation

Yoshihiro Terada

Kazuman Taniuchi

Hiroshi Sekine

Katuyuki Kouno

Yoshiharu Hibi

Kazuyasu Sasuga

Marvin T Ling

Masahiro Ishiwata

Alan J Filipski

Kiyomasa Endoh

Hiroyoshi Uejo

Junichi Shimizu

Noriaki Seki

Hiroaki Ikegami

Kenji Ebitani

Toshiya Koyama

Toru Yamasaki

Yasuhiko Iwamoto

Isao Kuwahara

In case of a 'N-up' function, a correcting unit executes a correcting process operation with respect to an image read by an image input unit, a editing unit executes a magnification changing process operation, and thereafter, 'N' sheets of images are placed side by side to form a single synthesized image at a time when the processed image is stored into a storage unitWhen transmitting the synthesized image, an attribute of the image set from a U/I is added to the synthesized image and the control unit transmits the resulting image to an external apparatus. As a result, a reception side can execute an optimum processing operation with respect to the synthesized image with reference to the attribute added to the image. As a consequence, even in a &#x201c;network copy&#x201d;, the &#x201c;N-up&#x201d; function can be realized in a high image quality similar to that of a &#x201c;direct copy&#x201d;.

Image processing apparatus, image processing method, image processing program, and storage medium

The reproduction of a copy inhibit image and the abuse of data through a network are to be prevented without sacrificing various page editing functions. An image read unit scans an original placed on an original carrying table and thereby generates RGB color image signals of multi-value. An image processing unit performs various image processing and, upon detection of a copy inhibit original, performs image working for preventing faithful reproduction of the copy inhibit original. An image storing unit temporarily stores page by page original images provided from the image processing unit. If a copy inhibit image is contained in the original images, the image working is performed by the image processing unit to prevent faithful reproduction and the images after the image working are stored in the image storing unit. An image output unit performs a printing operation in accordance with image data outputted from the image processing unit.

Image processing system, image processing method, and image input system

An image processing apparatus and a recording medium which can improve the quality of a color document image. Smoothing conditions which are defined by three parameters of 'filter size', 'offset', and &#x201c;overlap&#x201d; are set. An edge image which was generated in an edge detection processing is referred to, and a determination is made as to whether an edge pixel exists in a noticed region. When the edge pixel does not exist in the noticed region, a smoothing processing is carried out. When the edge pixel exists in the noticed region, it is determined inappropriate to effect the smoothing processing, and the process goes to a subsequent processing without effecting the smoothing processing. The processing is carried out until the image scanning ends. When the image scanning ends, the next smoothing conditions are set and the processing which is the same as the one described above is performed.

Image processing device and recording medium

An image processing apparatus and a recording medium which can improve the quality of a color document image are provided. An input image is converted into an image having low resolution. A subtractive color image is generated using the converted image having low resolution. From the subtractive color image, adjacent pixels which are allocated to the same representative color are unified so as to extract an FCR (Flat Color Region) candidate region. A region candidate is redetermined using an image having resolution which is higher than the subtractive color image. Next, a boundary of the FCR is detected and an ultimate FCR is determined. Selection of a representative color of the determined FCR is carried out, and a specific color processing which replaces a color which is close to a pure color with the pure color is effected. Finally, image regeneration is carried out by overwriting and drawing (synthesizing) the FCR on the input image.

An image resolution conversion method converting an image of a first resolution represented by multivalued digital data into an image of a second resolution by interpolation, comprises the steps of assigning a block defined by a plurality of pre-conversion pixels of the first resolution image to each post-conversion pixel, performing edge detection in the block based on data for each pixel of the block, and performing resolution conversion by a first interpolation method when at least the result of the edge detection satisfies predetermined conditions, and performing resolution conversion by a second interpolation method when the result of the edge detection does not satisfy the predetermined conditions.

Image resolution conversion method and appratus thereof

An image processing apparatus for converting a color image into an image of an N (N=2, 3, . . . ) number of colors, i.e., black and other colors, is disclosed. In the image processing apparatus, a gray-component extracting unit extracts a gray component signal from input color image signals, and produces remaining-color-component signals. A black signal generating unit generates a black signal by using the gray component signal and the remaining-color-component signals. A color signal generating unit generates a color signal by using the remaining-color-component signals. The image processing apparatus may further include first print signal generating means for developing a black signal outputted from the black signal generating means into a black dot pattern, second print signal generating means for developing a color signal outputted from the color signal generating means into a color dot pattern, and adjust means for adjusting the print signals outputted from the first and the second print signal generating means so that when a black dot of the black dot pattern and a color dot of the color dot pattern occupy the same dot position, one of the black and the color dots is preferentially used for print.

Image processing apparatus

A multi-color marker editing system for editing a color image by reading a designated marker. The multi-color marker editing system includes an image reading unit for reading color image data, a color-coordinate converting unit for converting the read image data into color data in a color coordinate system defined by optical density, hue and saturation, a color detecting unit for detecting a designated marker color from the read color image data, an image density converting unit for converting a density of the detected marker color image data, and a marker editing unit for making a marker color editing for each color to the density-converted marker color image data.

Multi-color marker editing system

A texture image processing system for image processing apparatus comprises, first calculator for calculating a maximum value and a minimum value of texture image data; second calculator for calculating an average value and a gain value with employment of said maximum value and minimum value; and synthesizing processor for synthesizing texture image data by image picture data, this synthesizing processor synthesizing the texture image data with the image picture data by multiplying a difference between the texture image data and the average value by the gain value. Also, synthesizing processor synthesizes the texture image data with chromaticity information of the image picture data, or chromaticity information of the image picture data with predetermined chromaticity information, chromaticity information of the texture image data. With the above-described structures, both of hue and saturation in the image picture data are maintained, and also the synthesized texture image having no great brightness change over its entire region is obtained.

Image processing apparatus for combining image data and texture image

A color image editing apparatus capable of improving color detecting accuracy, color-converting a chromatic color into a neutral (achromatic) color and vice verse and performing a hue conversion, while maintaining gradation. The color image editing apparatus in which image signals read out by an image reading unit are converted to density, hue and chroma signals by color display coordinate system convertor to perform a color image editing operation inlcudes a detector for detecting whether or not density, hue and chroma of a detected color image is within predetermined density, hue and chroma ranges, respectively. It is judged by a judging unit whether or not a color of the detected color image is of a predetermined color in responses to an output of the detector, and a color changing unit means converts the density, hue and chroma independently in response to the judgement result of the judging unit.

Color image editing apparatus

An image processing system assigns weight factors to two respective image signals of the equivalent color space so that the two image signals are combined according to the respective weight factors. For example, two weight factors having a sum of unity are assigned to the respective image signals. Alternatively, two weight factors are assigned independently.

Image combining in image processing apparatus

A mono color image outputting system for an image processing apparatus applies a color correction separated color signals in the input section converts them into recording signals of color material, before outputting a color image. In the mono color outputting system, a gradation property of value data in the input section is linearly compressed to correspond to a gradation property of value data in the output section.

Color image outputting system for an image processing apparatus

A color image recording device for use in a color copying machine, a color facsimile, a color printer and the like, which has a function to perform color edit processings including a color conversion processing, a coloring processing and the like.editing with ease and with high accuracy. Data B, G, and R output from an image read unit are converted to data L*, a*, and b* respectively by first color signal conversion unit and further the data a* and b* are then converted to data H and C by third color signal conversion unit. Image data V, H and C are color edited by image edit block and the output thereof H and C are converted to a* and b* respectively by fourth color signal conversion unit. The outputs of the first color signal conversion unit are also input to delay unit, are delayed by a time equal to a processing time in image edit unit by the delay unit, and are then input to selector unit. The selector unit, in accordance with a switching control signal S.sub.cont output from the image edit block, outputs either of the color edited data L*, a* and b* that are output from the image edit unit or the data L*, a* and b* that are output from the delay unit.

Color image recording device with color edit and conversion processing

A color converter capable of conversions between various kinds of color signals appropriate for use over a network (i.e., RGB signals, various luminance/chromaticity separated signals that are expressed by linear transformations of said RGB signals, and CIE LAB signals, which signals may or may not be gamma-corrected) and the internal color signals of devices connected to the network can be realized by rewriting associated coefficients and constants using the same circuit. Accurate color conversions can always be accomplished with an inexpensive system layout.

Growing community of inventors

Kanagawa, Japan

Yoshihiro Terada