Abstract: A texture pattern is reduced from an image easily. An image processing apparatus matches the spatial frequency component of a first texture pattern taken to be a reference with the spatial frequency component of a second texture pattern included in a target image and reduces the spatial frequency component of the second texture pattern included in the target image based on results of the matching.

Abstract: Provided is an information processing apparatus comprising: a first obtaining unit configured to obtain viewpoint information indicating change of a virtual viewpoint corresponding to a virtual viewpoint video generated on the basis of a plurality of images captured from a plurality of directions with a plurality of image capturing apparatuses; a second obtaining unit configured to obtain condition information indicating a condition associated with the amount of change of a background in the virtual viewpoint video; a determination unit configured to determine whether the viewpoint information obtained by the first obtaining unit satisfies the condition indicated by the condition information obtained by the second obtaining unit; and an output unit configured to output information according to the result of the determination by the determination unit.

Abstract: An image processing apparatus extracts an image area corresponding to a margin area of a chart for evaluation from a scanned image obtained by scanning a printed material on which the chart is printed. The image processing apparatus evaluates the printed material based on, in a case when a printing medium used for the printing is determined to be a printing medium having a specific characteristic based on the image area corresponding to the margin area, the scanned image from which influence based on the specific characteristic is decreased.

Abstract: The image processing apparatus extracts an image area corresponding to a margin area of a chart for evaluation from a scanned image obtained by scanning a printed material on which the chart is printed. The image processing apparatus evaluates the printed material based on, in a case where a printing medium used for the printing is determined to be a printing medium having a specific characteristic based on the image area corresponding to the margin area, the scanned image from which influence based on the specific characteristic is decreased.

Abstract: Provided is an information processing apparatus comprising: a first obtaining unit configured to obtain viewpoint information indicating change of a virtual viewpoint corresponding to a virtual viewpoint video generated on the basis of a plurality of images captured from a plurality of directions with a plurality of image capturing apparatuses; a second obtaining unit configured to obtain condition information indicating a condition associated with the amount of change of a background in the virtual viewpoint video; a determination unit configured to determine whether the viewpoint information obtained by the first obtaining unit satisfies the condition indicated by the condition information obtained by the second obtaining unit; and an output unit configured to output information according to the result of the determination by the determination unit.

Abstract: Provided is an information processing apparatus comprising: a first obtaining unit configured to obtain viewpoint information indicating change of a virtual viewpoint corresponding to a virtual viewpoint video generated on the basis of a plurality of images captured from a plurality of directions with a plurality of image capturing apparatuses; a second obtaining unit configured to obtain condition information indicating a condition associated with the amount of change of a background in the virtual viewpoint video; a determination unit configured to determine whether the viewpoint information obtained by the first obtaining unit satisfies the condition indicated by the condition information obtained by the second obtaining unit; and an output unit configured to output information according to the result of the determination by the determination unit.

Abstract: Provided is an information processing apparatus comprising: a first obtaining unit configured to obtain viewpoint information indicating change of a virtual viewpoint corresponding to a virtual viewpoint video generated on the basis of a plurality of images captured from a plurality of directions with a plurality of image capturing apparatuses; a second obtaining unit configured to obtain condition information indicating a condition associated with the amount of change of a background in the virtual viewpoint video; a determination unit configured to determine whether the viewpoint information obtained by the first obtaining unit satisfies the condition indicated by the condition information obtained by the second obtaining unit; and an output unit configured to output information according to the result of the determination by the determination unit.

Abstract: Provided is an image processing apparatus capable of adjusting a color of an image of an observation target depending on differences between viewing angles. The image processing apparatus obtains a viewing angle of a first observation target and a viewing angle of a second observation target, and then corrects the color of each observation target by using the obtained viewing angles of the first and second observation targets.

Abstract: Provided is an image processing apparatus capable of adjusting a color of an image of an observation target depending on differences between viewing angles. The image processing apparatus obtains a viewing angle of a first observation target and a viewing angle of a second observation target, and then corrects the color of each observation target by using the obtained viewing angles of the first and second observation targets.

Abstract: This invention provides a technique for efficiently estimating spectral radiance factors of fluorescence of a sample. To this end, for a sample which contains a fluorescent substance, first spectral reflectance data and second spectral reflectance data are obtained by making two different variable-angle measurements using a general colorimeter under a white light source. Ratios n of the first spectral reflectance data to the second spectral reflectance data in a long-wavelength spectrum range outside a fluorescent spectrum range of the sample are calculated. Then, difference data between spectral reflectance data as results of multiplying the second spectral reflectance data by the ratios n, and the first spectral reflectance data are calculated. The difference data are divided by values obtained by subtracting 1 from the ratios n, thereby calculating spectral reflectances of fluorescence of the sample, that is, spectral radiance factors.

Abstract: This invention provides a technique for efficiently estimating spectral radiance factors of fluorescence of a sample. To this end, for a sample which contains a fluorescent substance, first spectral reflectance data and second spectral reflectance data are obtained by making two different variable-angle measurements using a general colorimeter under a white light source. Ratios n of the first spectral reflectance data to the second spectral reflectance data in a long-wavelength spectrum range outside a fluorescent spectrum range of the sample are calculated. Then, difference data between spectral reflectance data as results of multiplying the second spectral reflectance data by the ratios n, and the first spectral reflectance data are calculated. The difference data are divided by values obtained by subtracting 1 from the ratios n, thereby calculating spectral reflectances of fluorescence of the sample, that is, spectral radiance factors.

Abstract: Input and output units using different signal processing systems cannot be connected to a single image input apparatus. On the basis of the signal format of image data acquired by the input unit and the signal format of image data that can be processed by the output unit, the signal format of image data to be supplied from the input unit to the output unit is controlled.

Abstract: Estimating the spectral distribution of an object requires not only the time of image sensing by a multi-spectrum camera but also, in order to process all band information acquired, large amounts of memories for storing all the band information of all pixels, and the processing time for processing all the band information. In this invention, when the spectral distribution data of a total wavelength region is to be estimated from color data and a plurality of spectral distribution data different in wavelength region, the color data is acquired, and, on the basis of the configuration of spectral distribution data defined in accordance with the acquired color data, spectral distribution data necessary for the estimation is acquired. In this way, the spectral distribution data of the total wavelength region is estimated.

Abstract: A photographing environmental light spectral distribution detector acquires spectral distribution data of photographing environmental light upon photographing an object image, and an observation environmental light spectral distribution data detector acquires those of environmental light used upon observing a reproduced image. A signal processor converts an image signal photographed by a camera under the photographing environmental light in accordance with the spectral distribution data of respective types of environmental light, generates colorimetric data that an output unit can output, and outputs the colorimetric data to the output unit, thus accurately reproducing the original color of the object while the object is placed under the observation environmental light.

Abstract: A color reproduction region of an image formation apparatus is to be effectively used and characteristic in lightness, hue and chroma is to be smoothed. In case of creating tables for separating color into color of coloring agent available in the image formation apparatus, a maximum line in the color reproduction region of the image formation apparatus is defined, internal lines in the color reproduction region of the image formation apparatus are defined and the tables are created by performing interpolation processing on the basis of the maximum line and the internal lines.

Abstract: To provide an output image of high quality with no graininess produced. An image processing method for controlling a starting point which produces a black component between vertices showing a plurality of chromatic colors and a vertex showing a black in a reproducible color space of a color output apparatus when a look-up table for converting an input color signal into a plurality of color components including a black component is prepared, which controls the starting point producing said black component based on the value of a complementary color component corresponding to a chromatic color which is inconspicuous in the graininess of a black recording material in an output image.

Abstract: In order to implement color conversion which makes images output using different recording sheets appear to have the same color appearance, mapping points and mapping parameters used to obtain an output gamut having a shape similar to that of the gamut of an input color space are determined on the basis of input color space information and output gamut information, and a mapping gamut used to convert an input color signal into an output color signal is generated using the mapping points and mapping parameters.

Abstract: A photographing environmental light spectral distribution detector acquires spectral distribution data of photographing environmental light upon photographing an object image, and an observation environmental light spectral distribution data detector acquires those of environmental light used upon observing a reproduced image. A signal processor converts an image signal photographed by a camera under the photographing environmental light in accordance with the spectral distribution data of respective types of environmental light, generates calorimetric data that an output unit can output, and outputs the colorimetric data to the output unit, thus accurately reproducing the original color of the object while the object is placed under the observation environmental light.

Abstract: Estimating the spectral distribution of an object requires not only the time of image sensing by a multi-spectrum camera but also, in order to process all band information acquired, large amounts of memories for storing all the band information of all pixels, and the processing time for processing all the band information. In this invention, when the spectral distribution data of a total wavelength region is to be estimated from color data and a plurality of spectral distribution data different in wavelength region, the color data is acquired, and, on the basis of the configuration of spectral distribution data defined in accordance with the acquired color data, spectral distribution data necessary for the estimation is acquired. In this way, the spectral distribution data of the total wavelength region is estimated.

Abstract: Input and output units using different signal processing systems cannot be connected to a single image input apparatus. On the basis of the signal format of image data acquired by the input unit and the signal format of image data that can be processed by the output unit, the signal format of image data to be supplied from the input unit to the output unit is controlled.