Abstract: The present invention relates to an information processing device and method, and program that can properly perform gamut conversion of content. A restoration conversion state confirming unit 171 of a restoration gamut conversion control unit 162 performs confirmation such as gamut conversion state of image data read out from an optical disc 110 and the existence or not of restoration metadata. An information exchange unit 172 communicates with an output device 103 via a communication unit 165, and performs information exchange such as the existence or not of restoration processing functionality and gamut conversion functionality and the like. A determining unit 173 determines whether or not restoration processing is performed with a playing device 102, based on information obtained by the restoration conversion state confirming unit 171 and the information exchange unit 172.

Abstract: Improving color calibration, and similar operations, by generating an optimal raw RGB color chart, in the raw RGB domain, for an imaging device with a given type of image sensor, such as for a digital still camera. Calibration is performed in response to a constraint which takes into account the spectral sensitivity of the image sensor used on the camera as well as spectral reflectance and spectral radiance of multiple illuminants. Calibration is performed using the raw RGB color chart which is illuminant independent and image sensor specific and which can match the calibration performance of known calibration standards, such as Macbeth 24.

Abstract: An imaging device having five color filters. The five color filters include three color filters of a R (red) filter, a G (green) filter, and a B (blue) filter of a primary color system and two color filters of a Y (yellow) filter and a C (cyan) filter of a complementary system. The G filter has a checker shape G filter so that the space information of green is obtained four times larger than that of each of the other colors.

Abstract: A signal processing system includes: defining a nonlinear function; defining a set of requirements for an output signal; obtaining an input signal; applying a cubic polynomial fitting to approximate the nonlinear function and provide an approximated nonlinear function; assigning a set of fitted polynomial parameters to the approximated nonlinear function; transforming the input signal with the approximated nonlinear function to provide a transformed signal; modifying the transformed signal by adjusting the set of fitted polynomial parameters to provide a modified signal meeting the set of requirements for the output signal; and outputting the modified signal.

Abstract: An information processing apparatus includes a control unit for controlling a color gamut conversion method that converts a color gamut of content data into a desired color gamut in accordance with the use of the content data; and a color gamut conversion unit for performing the color gamut conversion with respect to the content data by a method based on the control of the control unit.

Abstract: An information processing device includes: a control unit to determine whether to perform, according to the relation between a gamut of an image subjected to gamut conversion beforehand and a target gamut, a first conversion processing to perform gamut conversion processing to convert the gamut of the image into the target gamut after performing restoring processing to return at least a portion of the image gamut into the state before the gamut conversion, and a second conversion processing to perform the gamut conversion processing without performing the restoring processing; a restoring unit to execute the restoring processing according to control by the control unit; and a gamut conversion unit to execute the gamut conversion processing according to control by the control unit.

Abstract: The color calibration using colored rays method achieves illuminant independence in calibrating digital still cameras. A constraint is developed using matrix-vector operations and properties of the Kronecker product. The constraint ensures similar calibration performance between colored rays set and the Macbeth ColorChecker. An optimization scheme using orthogonal non-negative matrix factorization with the new constraint is able to obtain the optimal colored rays set. Then, by acquiring an image of the optimal colored rays set, a camera is able to determine an adjustment matrix for color calibration. Experimental results show that compared to traditional calibration approach for digital still cameras, the colored rays approach gives smaller color error under various evaluation illuminants with only one shot needed.

Abstract: An information processing device includes: a color gamut information generating unit configured to generate color gamut information representing the color gamut of image data based on table information indicating the highest chroma point at each equal hue plane regarding a plurality of equal hue planes.

Abstract: A recording device includes a color gamut conversion control unit, a color gamut conversion unit, and a recording unit. The color gamut conversion control unit controls a method of converting the color gamut of content data, on the basis of a user-specified condition specified by a user. The color gamut conversion unit converts the color gamut of the content data in accordance with the control of the color gamut conversion control unit. The recording unit records, on a recording medium, the content data, the color gamut of which has been converted by the color gamut conversion unit in accordance with the control of the color gamut conversion control unit, or the content data, the color gamut of which has not been converted by the color gamut conversion unit in accordance with the control of the color gamut conversion control unit.

Abstract: A signal processing system includes: defining a nonlinear function; defining a set of requirements for an output signal; obtaining an input signal; applying a cubic polynomial fitting to approximate the nonlinear function and provide an approximated nonlinear function; assigning a set of fitted polynomial parameters to the approximated nonlinear function; transforming the input signal with the approximated nonlinear function to provide a transformed signal; modifying the transformed signal by adjusting the set of fitted polynomial parameters to provide a modified signal meeting the set of requirements for the output signal; and outputting the modified signal.

Abstract: An imaging device having a hybrid RGBYC color filter using a primary color system RGB filter and a complementary color system YC filter is composed. Four G filters that directly relate to resolution and that is close to a luminance signal that human eyes sense are arrayed in a checker shape so that the number of the G filters is four times larger than the number of filters of each of the other colors. An array shown in FIG. 10A is composed of low resolution rows (G, R, G, and B) and high resolution rows (C, G, Y, and G) that are alternately arrayed in each line. When signals are read if exposure times are varied for individual lines, the signals that are read can easily have a wide dynamic range. An array shown in FIG. 10B has two Gs, a low sensitivity color, and a high sensitivity color in each line and each row. Thus, the luminance difference is small in the horizontal direction and the vertical direction. Thus, the reading method in the array shown in FIG.

Abstract: An imaging device having five color filters. The five color filters include three color filters of a R (red) filter, a G (green) filter, and a B (blue) filter of a primary color system and two color filters of a Y (yellow) filter and a C (cyan) filter of a complementary system. The G filter has a checker shape G filter so that the space information of green is obtained four times larger than that of each of the other colors.

Abstract: An information processing device, configured to perform color gamut conversion for compressing or enlarging the color gamut of image data, includes: a selecting unit configured to select a generating method of table information for specifying a non-mapping boundary which is a boundary between a region where the coordinate movement of a pixel to be processed is not performed, and a conversion source region where the coordinate movement of the pixel to be processed is performed, and a mapping limit boundary which is a boundary other than the non-mapping region, of the conversion source region, for each hue, from a plurality of generating methods according to a predetermined condition, with the color gamut conversion; and a table information generating unit configured to generate the table information using the method selected from the plurality of generating methods.

Abstract: An information processing device, configured to perform color gamut conversion for compressing or enlarging the color gamut of image data, includes: a selecting unit configured to select a plurality of coordinate movement directions to be synthesized for determining the coordinate movement destination of a pixel to be processed during the color gamut conversion; a coordinate moving unit configured to move the coordinates of the pixel to be processed in each of the selected plurality of directions; and a synthesizing unit configured to synthesize coordinate movement in the selected plurality of directions.

Abstract: A color chart for color calibration of imaging devices that has nearly identical calibration performance as the Macbeth ColorChecker or another set of reference colors, but with substantially fewer color patches. For example, the color chart has similar 2nd order statistical characteristics, auto-correlation matrix and major principal components as the Macbeth ColorChecker. The color chart is developed by applying Orthogonal Non-negative Matrix Factorization (ONMF) to the set of reference colors, using non-negativity and smoothness constraints to achieve physically realizable colors and using orthogonality constraints to obtain similar statistical properties to that of any input set of reflectances including, but not limited to, the Macbeth ColorChecker. Seven colors provide nearly identical calibration performance to that of twenty-four colors in the Macbeth ColorChecker.

Abstract: In an image pick-up apparatus including an image pick-up unit comprised of color filters having different spectral characteristics, and serving to pick up image of object, there are provided an adjustment unit for adjusting color reproduction value and noise value representing noise feeling, a matrix coefficient determination unit for determining matrix coefficients on the basis of adjustment of the adjustment unit, and a matrix transform processing unit for performing matrix transform processing with respect to image which has been picked up at the image pick-up device unit on the basis of the matrix coefficients.

Abstract: characteristic are improved. An imaging device having a hybrid RGBYC color filter using a primary color system RGB filter and a complementary color system YC filter is composed. Four G filters that directly relate to resolution and that is close to a luminance signal that human eyes sense are arrayed in a checker shape so that the number of the G filters is four times larger than the number of filters of each of the other colors. An array shown in FIG. 10A is composed of low resolution rows (G, R, G, and B) and high resolution rows (C, G, Y, and G) that are alternately arrayed in each line. When signals are read if exposure times are varied for individual lines, the signals that are read can easily have a wide dynamic range. An array shown in FIG. 10B has two Gs, a low sensitivity color, and a high sensitivity color in each line and each row. Thus, the luminance difference is small in the horizontal direction and the vertical direction. Thus, the reading method in the array shown in FIG.

Abstract: The present invention relates to an imaging device and a method of processing an imaging result in an imaging device, and is applied to e.g. an electronic still camera to thereby allow the camera to correct image quality readily and flexibly with avoiding the deterioration of the image quality effectively. In the present invention, a three-dimensional look-up table is provided and an imaging result (Y2, Cb2, Cr2) is corrected by use of the three-dimensional look-up table.

Abstract: In an image pick-up apparatus including an image pick-up unit comprised of color filters having different spectral characteristics, and serving to pick up image of object, there are provided an adjustment unit for adjusting color reproduction value and noise value representing noise feeling, a matrix coefficient determination unit for determining matrix coefficients on the basis of adjustment of the adjustment unit, and a matrix transform processing unit for performing matrix transform processing with respect to image which has been picked up at the image pick-up device unit on the basis of the matrix coefficients.

Abstract: The present invention relates to an image processing apparatus and method in which more faithful colors are reproduced and noise is reduced, and to a method of manufacturing the image processing apparatus. A four-color color filter 61 is formed of a total of four filters, that is, an R filter that allows only red light to pass through, a B filter that allows only blue light to pass through, and a G1 filter that allows only green light in a first wavelength band to pass through, and a G2 filter, having a high correlation with the G1 filter, that allows only green light in a second wavelength band to pass through, the four filters defining a minimum unit. The G1 filter and the G2 filter are arranged at mutually diagonal positions within the minimum unit. RGB signals are generated in accordance with four kinds of signals which are transmitted through the four-color color filter 61 and which are obtained by an image sensor.