Abstract: An image correction data calculation method comprises the steps of acquiring an input-output characteristic at each of a plurality of display elements on a display screen of an image display device, on the basis of image data captured by a CCD camera (steps S101 to S105), setting a target input-output characteristic to be obtained at each of the plurality of display elements (step S106), and calculating image correction data used to correct the input-output characteristic for an input image signal, according to the locations of display elements on the screen, on the basis of the input-output characteristic acquired in the acquisition step and the target input-output characteristic to be obtained (step S107).

Abstract: In a color reproduction device, an input profile that is referenced in converting an input image from an image input device into a device-independent color image is created based on image input device information, shooting- and observation-time lighting data, and subject data, allowing accurate conversion of the input image to the device-independent color image. In reproducing the image by an image output device, the spectral reflectance of the subject itself is calculated from image input device information and shooting-time lighting data, thereby reducing the effect of the shooting-time lighting. The colors of the subject under observation lighting are calculated from observation-time lighting data. A color reproduced image is estimated accurately on the basis of the subject data even if the input image has little information.

Abstract: A color reproducing system includes a color image input section. A color image processing device has an image processing section for performing a predetermined processing on color image data input through the color image input section. A storage section stores therein the color image data which has been input through the color image input section. A color image output section outputs the color image data which has been stored in the storage section. The color image processing device further includes a processing selection section for performing selection about whether or not the predetermined processing is performed on the color image data input through the color image input section.

Abstract: A multiprojection system that displays one color image by joining a plurality of color images projected by respective projectors is disclosed. The system includes an image capturing section including an optical section having a plurality of filter characteristics corresponding to a plurality of basic colors constituting the color image projected by the projectors, and capturing an image of each of the basic colors via the optical section; and a calculating section calculating offset correction data for each of the basic colors on the basis of a luminance distribution of offset light of each of the basic colors obtained by allowing the image capturing section to capture a black level image projected by the projectors.

Abstract: There is provided a projection type image display system comprising color image displaying means for displaying an image to be projected onto a screen, means for storing a correlation between an initial XYZ-tristimulus value of an image projected onto the screen at the time of initial adjustment and an initial luminance value of the image projected onto the screen at the time of initial adjustment, luminance measuring means for measuring a maximum luminance value of each of primary colors of an image projected onto the screen upon lapse of a predetermined time from the initial adjustment, means for estimating an XYZ-tristimulus value of the image on the screen upon lapse of the predetermined time based on the maximum luminance value and the correlation, and means for calculating a color correction coefficient based on the estimated XYZ-tristimulus value.

Abstract: In a color reproduction device, an input profile that is referenced in converting an input image from an image input device into a device-independent color image is created based on image input device information, shooting- and observation-time lighting data, and subject data, allowing accurate conversion of the input image to the device-independent color image. In reproducing the image by an image output device, the spectral reflectance of the subject itself is calculated from image input device information and shooting-time lighting data, thereby reducing the effect of the shooting-time lighting. The colors of the subject under observation lighting are calculated from observation-time lighting data. A color reproduced image is estimated accurately on the basis of the subject data even if the input image has little information.

Abstract: A multiprojection system that displays one color image by joining a plurality of color images projected by respective projectors is disclosed. The system includes an image capturing section including an optical section having a plurality of filter characteristics corresponding to a plurality of basic colors constituting the color image projected by the projectors, and capturing an image of each of the basic colors via the optical section; and a calculating section calculating offset correction data for each of the basic colors on the basis of a luminance distribution of offset light of each of the basic colors obtained by allowing the image capturing section to capture a black level image projected by the projectors.

Abstract: A color reproducing system includes a color image input section. A color image processing device has an image processing section for performing a predetermined processing on color image data input through the color image input section. A storage section stores therein the color image data which has been input through the color image input section. A color image output section outputs the color image data which has been stored in the storage section. The color image processing device further includes a processing selection section for performing selection about whether or not the predetermined processing is performed on the color image data input through the color image input section.

Abstract: An image correction data calculation apparatus of the invention includes a calibration pattern display unit for creating and supplying a calibration pattern, an image display unit for displaying the calibration patterns supplied thereto, an image capturing unit for capturing the calibration patterns displayed on the image display unit, and an arithmetic operation unit for calculating image correction data based on pattern-captured images obtained by capturing the calibration patterns and based on pattern information including information such as the pattern-captured images obtained by capturing the calibration patterns, the coordinates of the calibration patterns, and the like.

Abstract: There is provided a projection type image display system comprising color image displaying means for displaying an image to be projected onto a screen, means for storing a correlation between an initial XYZ-tristimulus value of an image projected onto the screen at the time of initial adjustment and an initial luminance value of the image projected onto the screen at the time of initial adjustment, luminance measuring means for measuring a maximum luminance value of each of primary colors of an image projected onto the screen upon lapse of a predetermined time from the initial adjustment, means for estimating an XYZ-tristimulus value of the image on the screen upon lapse of the predetermined time based on the maximum luminance value and the correlation, and means for calculating a color correction coefficient based on the estimated XYZ-tristimulus value.

Abstract: In a color reproduction device, an input profile that is referenced in converting an input image from an image input device into a device-independent color image is created based on image input device information, shooting- and observation-time lighting data, and subject data, allowing accurate conversion of the input image to the device-independent color image. In reproducing the image by an image output device, the spectral reflectance of the subject itself is calculated from image input device information and shooting-time lighting data, thereby reducing the effect of the shooting-time lighting. The colors of the subject under observation lighting are calculated from observation-time lighting data. A color reproduced image is estimated accurately on the basis of the subject data even if the input image has little information.

Abstract: In a color reproduction device, an input profile that is referenced in converting an input image from an image input device into a device-independent color image is created based on image input device information, shooting- and observation-time lighting data, and subject data, allowing accurate conversion of the input image to the device-independent color image. In reproducing the image by an image output device, the spectral reflectance of the subject itself is calculated from image input device information and shooting-time lighting data, thereby reducing the effect of the shooting-time lighting. The colors of the subject under observation lighting are calculated from observation-time lighting data. A color reproduced image is estimated accurately on the basis of the subject data even if the input image has little information.

Abstract: A color measuring system includes a color classifying apparatus and a color nonuniformity checking apparatus capable of measuring color nonuniformity which simplify the configuration, reduce cost, withstand mechanical vibration, and are capable of classifying the colors of objects well without limiting the light source even when its spectrum varies, and which are capaple of further improving the color classification accuracy.

Abstract: The present invention provides a simple, low-cost color classification apparatus having a high resistance to mechanical vibrations and capable of properly performing color classification even if a light source is not specified and its spectrum changes. A color classification apparatus of the present invention is further including an image pickup means for picking up a spectrum of light reflected by a target object, a plurality of bandpass filters having different bands and arranged between the target object and the image pickup means, and a classifying means for calculating a classification spectrum for classification using a statistic technique from a spectrum of light reflected by the target object and picked up by the image pickup means, and classifying the target object using the classification spectrum.