Abstract: An object of the present invention is to reflect the photographer's intention on image processing. A computer PC as image processing device acquires metadata along with image data to be processed. The metadata includes comment data added later by the photographer of the image, which represents the content of the image data in a human language. The image processing device analyzes the comment data by the aid of an analysis dictionary DB 15 to set an image processing parameter on which the content of the comment data is reflected. Using this image processing parameter enables the image processing to reflect the intention of the photographer.

Abstract: In a color correction table generating method, an image processing method, an image processing device and a recording media, which performs a better color reproduction, after a scaling section correlates a white point of a color space of an image input signal to a maximum brightness point having the same chromaticity as the white point and having the maximum brightness in a color space of an output device, a three dimensional color correction table, which correlates a color point of the color space of the image input signal to a color point of the color space of the image output device, is generated in the color space wherein the white point substantially corresponds to the maximum brightness point, When a color of the image input signal is reproduced by the output device, by executing a white point correction and using the three dimensional color correction table, a better color reproduction is obtainable by way of a wider color space.

Abstract: In order to provide a projection system, projector, program, information storage medium and image processing method which can reduce an unpleasantness to an observer in an image calibration when it is executed in consideration of the ambient light, a calibration information output section selects and outputs calibration information, a color light sensor then measures XYZ values in the respective projected calibration images, and a measurement data is then stored in a sensing value holding section, when a synchronizing signal judgment section judges that no synchronizing signal has been inputted. When all the color correcting measurement data have been provided, a 3D-LUT update section updates a 3D-LUT stored in the 3D-LUT storage section, based on the measurement data. When all the brightness correction measurement data have been provided, a 1D-LUT update section updates a 1D-LUT stored in a 1D-LUT storage section to execute the calibration, based on the measurement data.

Abstract: The image processing device of the present invention maps signal values on saturation segments to corresponding signals on an achromatic axis. In conjunction with this, mapping of color signal present around the saturation segments is mapped while preserving the continuity prior to mapping. The image processing device determines the displacement level entailed in mapping color signal surround a saturation segment so as to be inversely proportional to distance from the saturation segments. Since chroma of signals on the saturation segments change precipitously before and after mapping, by mapping signal surround the saturation segments so as to preserve the continuity of the original signals of signals surround the saturation segments, chroma gradation of signals on the saturation segments and signals around saturation segments can be preserved with a high degree of accuracy.

Abstract: At least one of a plurality of achromatic object color ranges is selected based on the image targeted for processing, and a color adjustment process is executed based on the selected achromatic object color range. Image may be reproduced using a color image data after a color correction of the color image data, the color correction being performed according to illumination light source associated with the color image data. Image data may also be output after the color correction. Image data may also be output associated with data related to the illumination light source, to reproduce the image after the color correction.

Abstract: In order to optimize a color conversion table in accordance with environment of a user since a conventional color conversion table used in a printer driver is not optimized in accordance with the environment of the user, when an installer operation is executed by a computer 21 constituting an image processing device 20, a color conversion table 21b2b is formed from a pre conversion color conversion table 21b2c at step S130 and according to a processing of increasing lattice points in this case, the lattice points are increased by nonlinear interpolation calculation using Lagrange interpolation equation at step S430 or the lattice points are increased by linear interpolation, and in that case the number of the lattice points may be fixed or may be a number in accordance with environment or input image by which the color conversion table 21b2b having a pertinent size can be formed from the pre conversion color conversion table 21b2c having a small size.

Abstract: In the present invention, in order to perform black printing in a color space for printing comprising a plurality of approximately equivalent element colors, such as CMY, a CPU system 100 multiplies an undercolor amount, CMYmin, which is a common minimum component in the plurality of element colors, by the predetermined generation ratio BGR, to generate a black color component. In this case, the generation ratio BGR of the black color component is made smaller as the data before conversion becomes brighter, whereby the generation amount Kout of the black color component is small for the brighter color if the undercolor amount CMYmin is the same. When the printing operation is performed with reference to a color conversion table for printing obtained in this way, dot corresponding to black color component is unremarkable.

Abstract: The present invention makes an image data supplier such as an image shooting apparatus controllable of image processing that is performed in an image output apparatus according to image data for the purpose of improving image quality.

Abstract: In order to provide a projection system, projector, program, information storage medium and image processing method which can reduce an unpleasantness to an observer in an image calibration when it is executed in consideration of the ambient light, a calibration information output section selects and outputs calibration information, a color light sensor then measures XYZ values in the respective projected calibration images, and a measurement data is then stored in a sensing value holding section, when a synchronizing signal judgment section judges that no synchronizing signal has been inputted. When all the color correcting measurement data have been provided, a 3D-LUT update section updates a 3D-LUT stored in the 3D-LUT storage section, based on the measurement data. When all the brightness correction measurement data have been provided, a 1D-LUT update section updates a 1D-LUT stored in a 1D-LUT storage section to execute the calibration, based on the measurement data.

Abstract: A CPU 200 reads a graphics file GF from a memory card MC and temporarily places the read graphics file GF in RAM 210. CPU 200 acquires graphics processing control information GI from the read out graphics file GF and searches for a WorkSpaceColor tag designating a work color space for graphics processing. If CPU 200 successfully finds a WorkSpaceColor tag it acquires, from the designated work color space information, work color space matrix values and a second gamma correction value which is the gamma correction value for the designated work color space, and executes graphics processing in the designated work color space.

Abstract: A purpose of the present invention is to provide an image processing apparatus for reproducing natural colors.

Abstract: When an sRGB color space and an wRGB color space have a common white point in a device-independent color space, the CPU 31 of a color printer 20 eliminates deviation of the white points of the two color spaces occurring when a color value of the sRGB color space has been converted to a color value of the wRGB color space using a matrix operation L, by correcting the coefficients of matrix L. As a result of correction a matrix L′ is obtained. CPU 31 executes gamma correction on the RGB color space color value obtained by a matrix operation S, and then executes matrix operation L′. CPU 31 executes inverse gamma correction on the color value obtained by a matrix operation L′.

Abstract: In conventional black printing, there arises a problem that dot is more remarkable compared to a color difference as for a relatively large dot diameter such as a color printer.

Abstract: CPU 150 performs a matrix operation on image data GD, and then increases the effective digit place number of the color values of the image data GD to increase the tone number of the image data GD from 8-bit tone to 18-bit tone. CPU 150 performs a gamma correction process, a matrix operation N−1M, and an inverse gamma correction process, and then restores the tone number of the image data GD to the original 8-bit tone, and performs automatic quality adjustment. As a result, the 8-bit tone of the original image data GD is preserved throughout image processing, and reproductive color number of the image data GD is preserved as well.

Abstract: There are provided an image display system of environment-compliant type, image display method and information storage medium which can reproduce color of an image suiting taste of a user. A color conversion LUT generating section 160 is used to correct a look-up table in an LUT storage section 122 based on a target profile in a target profile storage section 162 selected by a user, a projector profile in a projector profile storage section 164 and viewing environment information from a color light sensor 60 which detects the viewing environment, and the corrected look-up table is then used to display an image.

Abstract: In order to perform black printing in a color space for printing approximately equivalent element colors such as CMY, a CPU system multiplies an undercolor amount CMYmin which is a common minimum component in the element colors by a predetermined generation ratio BGR to generate a black color component. In this case, the generation ratio BGR of the black color component is made smaller as the data before conversion becomes brighter, whereby a generation amount Kout of the black color component is small for the brighter color if the undercolor amount CMYmin is the same. When the printing operation is performed with reference to a color conversion table for printing obtained in this way, a dot corresponding to the black color component is unremarkable.

Abstract: A Makernote data storage area contains a plurality of sets of output device control information CI designating image output conditions and image output conditions for achieving the best image output results in output devices, given the color reproduction characteristics and image output characteristics of individual output devices. Output device control information CI includes identifying information as information designating output devices, and output control information for controlling designated output devices. As graphics file GF includes output device control information CI for a plurality of output devices, Makernote data storage area contains a plurality of combinations of identifying information and output control information corresponding to output device control information CI.

Abstract: The technique of the present invention ensures output of an image subjected to image processing, which does not depend upon the output environment but reflects the color reproduction characteristics of a shooting device and the intention of a photographer in shooting. The process generates an image file that includes picture data generated by a digital still camera, as well as control data and output specification information attached thereto. The control data controls the details of image processing according to the color reproduction characteristics of the camera and the intention of the photographer in shooting. The output specification information specifies, for example, the address of a printing device used as an output resource, the type of printing paper used for printing, and the number of copies. The image file is transmitted to an image processing system on a network.

Abstract: The present invention is to provide a color correction table generating method, an image processing method, an image processing device and a recording media, which performs a better color reproduction.

Abstract: To provide a method for generating color-correction lookup table for better using a color reproduction area of an output system, an image processing apparatus, an image processing method, and a recording medium.