Abstract: An information processing device (20) includes an optimization processing unit (25) that optimizes, on a basis of an evaluation result acquired by evaluation of image quality of when image information for streaming distribution is decoded into a reproducible state on a reception side, a parameter of when the image information is generated.

Abstract: According to one embodiment, an image processor including: a corrector; a simulator; and a parameter calculator. The corrector calculates a correction image regarding a first image. The first image is processed. The simulator calculates a simulation image using the correction image. The simulation image is estimated to be acquired when the correction image is projected on a projection surface. The parameter calculator calculates a correction parameter regarding the projection surface using the simulation image and a second image acquired by imaging the projection surface. The corrector calculates the correction image using the first image and the correction parameter.

Abstract: According to one embodiment, an image processor includes a processor. The processor implements acquiring a first image and first information. The first information indicates a condition of a first projection surface. The first information includes a first color gamut of the first projection surface. The processor implements deriving a second color gamut according to the first color gamut derived by using the first information. The processor implements converting a chromaticity of the first image to obtain a second image. Each pixel of the second image has a color included in the second color gamut. The processor implements generating a first converted image by correcting the second image based on the first color gamut.

Abstract: According to one embodiment, an image processor includes: a detector; a calculator; and a corrector. The detector calculates a state signal indicating whether or not an operation is being performed on a projection surface where an image is projected. The calculating is based on information relating to the projection surface. The calculator calculates a correction parameter based on the state signal and the information relating to the projection surface. The corrector generates a corrected image based on the correction parameter and an image to be processed.

Abstract: An information processing device connected to a projection unit comprising a shape acquiring unit, an observation point acquiring unit, an evaluating unit, and a generating unit. The shape acquiring unit is configured to acquire shape information regarding a projection plane onto which an image is projected by the projection unit and projection point information regarding a position of the projection unit. The observation point acquiring unit is configured to acquire observation point information regarding an observation point to observe the projection plane. The evaluating unit is configured to evaluate an appropriate level of the projection plane based on the shape information, the projection point information, and the observation point information. The generating unit is configured to generate an auxiliary information data based on the appropriate level.

Abstract: An image processing apparatus includes a weight calculation unit, a gamma calculation unit, and a conversion unit. The weight calculation unit calculates a weight coefficient to calculate a second gamma characteristic based on light information of an image. The second gamma characteristic has a narrower range of lightness than a first gamma characteristic. The first gamma characteristic represents a characteristic of a display connected to the apparatus in the dark. The gamma calculation unit calculates the second gamma characteristic based on the weight coefficient, and calculates a gamma conversion function based on the second gamma characteristic. The second gamma characteristic more approximates a lightness of the first gamma characteristic if the light information is darker, and more approximates a gradation of the lightness of the first gamma characteristic if the light information is brighter. The conversion unit converts pixel values of the image, based on the gamma conversion function.

Abstract: According to an embodiment, an image processing apparatus includes a corresponding point calculator, a parameter calculator, a corrector, and a detector. The corresponding point calculator calculates corresponding points between an input image and a captured image including a projection surface onto which a projection image is projected. The projection image is generated from the input image. The parameter calculator calculates a correction parameter based on the input image, the captured image, and the corresponding points. The corrector corrects pixel values of the input image using the correction parameter with respect to each color component. The detector detects a change in the projection surface. When the detector detects the change in the projection surface, the corresponding point calculator updates the corresponding points for the change, and the parameter calculator calculates the correction parameter based on the updated corresponding points.

Abstract: According to one embodiment, an image processor includes a processor. The processor implements acquiring a first image and first information. The first information indicates a condition of a first projection surface. The first information includes a first color gamut of the first projection surface. The processor implements deriving a second color gamut according to the first color gamut derived by using the first information. The processor implements converting a chromaticity of the first image to obtain a second image. Each pixel of the second image has a color included in the second color gamut. The processor implements generating a first converted image by correcting the second image based on the first color gamut.

Abstract: According to one embodiment, an image processor includes: a detector; a calculator; and a corrector. The detector calculates a state signal indicating whether or not an operation is being performed on a projection surface where an image is projected. The calculating is based on information relating to the projection surface. The calculator calculates a correction parameter based on the state signal and the information relating to the projection surface. The corrector generates a corrected image based on the correction parameter and an image to be processed.

Abstract: According to one embodiment, in an apparatus for generating a multi-viewpoint image, a separation unit separates a target image into a first diffuse reflection image and a first non-diffuse reflection image based on a pixel value of each pixel of the target image. The first non-diffuse reflection image has components except for the first diffuse reflection image. A first estimation unit estimates a change amount of each pixel among a plurality of first non-diffuse reflection images corresponding to viewpoints differently. A first generation unit generates a second non-diffuse reflection image by changing at least one of a shape and a luminance of each pixel of the first non-diffuse reflection image, based on the change amount of each pixel. A synthesis unit generates the multi-viewpoint image by synthesizing the first diffuse reflection image with the second non-diffuse reflection image. Each viewpoint image corresponds to each of the viewpoints.

Abstract: According to one embodiment, a controller includes: an analyzer; a determiner; a projection image generator. The analyzer analyzes an environment of a projection surface on which an image is projected, based on a capture image obtained by capturing a region including at least part of the projection surface. The determiner determines a parameter for controlling illumination light illuminating the region based on information regarding the analyzed environment. The projection image generator generates a projection image projected on the region based on the information regarding the environment and acquired image data.

Abstract: According to one embodiment, an image processor including: a corrector; a simulator; and a parameter calculator. The corrector calculates a correction image regarding a first image. The first image is processed. The simulator calculates a simulation image using the correction image. The simulation image is estimated to be acquired when the correction image is projected on a projection surface. The parameter calculator calculates a correction parameter regarding the projection surface using the simulation image and a second image acquired by imaging the projection surface. The corrector calculates the correction image using the first image and the correction parameter.

Abstract: An image processing apparatus includes a weight calculation unit, a gamma calculation unit, and a conversion unit. The weight calculation unit calculates a weight coefficient to calculate a second gamma characteristic based on light information of an image. The second gamma characteristic has a narrower range of lightness than a first gamma characteristic. The first gamma characteristic represents a characteristic of a display connected to the apparatus in the dark. The gamma calculation unit calculates the second gamma characteristic based on the weight coefficient, and calculates a gamma conversion function based on the second gamma characteristic. The second gamma characteristic more approximates a lightness of the first gamma characteristic if the light information is darker, and more approximates a gradation of the lightness of the first gamma characteristic if the light information is brighter. The conversion unit converts pixel values of the image, based on the gamma conversion function.

Abstract: According to an embodiment, an illumination apparatus includes a light source that emits at least two types of lights having different spectral distributions and a controller. The controller starts controlling of the light source. The controller sequentially performs switching-controlling of pre-set lighting-up patterns of the light source so as to switch at least one of a combination of the lights having different spectral distributions of the light source and a combination of intensities of the light source in response to the start of the control of the light source. The controller ends controlling of the light source after at least the switching-controlling of all the pre-set lighting-up patterns of the light source is performed.

Abstract: According to one embodiment, in an apparatus for generating a multi-viewpoint image, a separation unit separates a target image into a first diffuse reflection image and a first non-diffuse reflection image based on a pixel value of each pixel of the target image. The first non-diffuse reflection image has components except for the first diffuse reflection image. A first estimation unit estimates a change amount of each pixel among a plurality of first non-diffuse reflection images corresponding to viewpoints differently. A first generation unit generates a second non-diffuse reflection image by changing at least one of a shape and a luminance of each pixel of the first non-diffuse reflection image, based on the change amount of each pixel. A synthesis unit generates the multi-viewpoint image by synthesizing the first diffuse reflection image with the second non-diffuse reflection image. Each viewpoint image corresponds to each of the viewpoints.

Abstract: According to one embodiment, an image processing apparatus includes a scale down unit, a calculation unit, a scale up unit, and a subtraction unit. The scale down unit generates a scaled down image by scaling down a target image. The scaled down image has a size smaller than the target image. The calculation unit calculates a pixel value of a diffuse reflection component of each pixel in the scaled down image, and generates a first diffuse reflection image having the pixel value and the same size as the scaled down image. The scale up unit generates a second diffuse reflection image by scaling up the first diffuse reflection image. The second diffuse reflection image has the same size as the target image. The subtraction unit generates a specular reflection image by subtracting the second diffuse reflection image from the target image.

Abstract: An image processing device includes a hue calculation unit configured to calculate a hue of a pixel included in a target image; an extraction unit configured to extract a first group including a pixel, a hue of which is close to a hue of the target pixel; a chromaticity calculation unit configured to calculate a chromaticity of the pixel included in the first group and that of the target pixel; a diffuse reflection factor calculation unit configured to calculate an estimated diffuse reflection factor by using the chromaticity of the pixel included in the first group and that of the target pixel; and a separation unit configured to separate a diffuse reflection component from a pixel value of the target pixel by using the diffuse reflection factor, the diffuse reflection component representing a component in the pixel value that varies as the diffuse reflection factor varies.

Abstract: An image processing device includes a hue calculation unit configured to calculate a hue of a pixel included in a target image; an extraction unit configured to extract a first group including a pixel, a hue of which is close to a hue of the target pixel; a chromaticity calculation unit configured to calculate a chromaticity of the pixel included in the first group and that of the target pixel; a diffuse reflection factor calculation unit configured to calculate an estimated diffuse reflection factor by using the chromaticity of the pixel included in the first group and that of the target pixel; and a separation unit configured to separate a diffuse reflection component from a pixel value of the target pixel by using the diffuse reflection factor, the diffuse reflection component representing a component in the pixel value that varies as the diffuse reflection factor varies.

Abstract: There is provided an image display apparatus that corrects the gradation of an input video signal in accordance with an ambient illuminance, in which the adaptation amount of the eye and a surface reflection amount are calculated based on an illuminance signal acquired through a sensor, and the screen luminance of the screen and the gamma conversion for the video signal are controlled based on the adaptation amount of the eye and the surface reflection amount.

Abstract: An image display device includes: an image input unit configured to input an image; a content categorizer configured to determine a content category of the image; a database configured to store adjustment items corresponding to each of a plurality of content categories, the adjustment items being related to sensibility words each representing an impression for images; an adjustment item display configured to display the adjustment items corresponding to the content category, the adjustment item being selectable by a user; a receiver configured to receive set values of the adjustment items selected from the user; an image quality parameter calculator configured to calculate image quality parameters in accordance with the set values of the adjustment items; an image processor configured to perform image processing on the image in accordance with the image quality parameters; and an image display configured to display the processed image.