Abstract: An image processing apparatus includes an identifier identifying, for each pixel in the frame image, minimum pixel values for each color component from pixel values of surrounding pixels for each color component. The surrounding pixels are positioned around the pixel. The identifier also identifies, as a common pixel value, a minimum value in the minimum pixel values identified for each color component. The apparatus further includes a generator generating a preprocessed image which can be obtained by replacing a pixel value of each pixel in the frame image with the common pixel value identified for the pixel by the identifier, a low pass filter generating a first subframe image by applying a low-pass filter to the preprocessed image, and a subtractor generating, as a second subframe image, a difference image between the frame image and the first subframe image.

Abstract: Systems and methods in accordance with embodiments of the invention are disclosed that use super-resolution (SR) processes to use information from a plurality of low resolution (LR) images captured by an array camera to produce a synthesized higher resolution image. One embodiment includes obtaining input images, determining an initial estimate of at least a portion of a high resolution image using a plurality of pixels from the input images, and determining a high resolution image that when mapped through the forward imaging transformation matches the input images to within at least one predetermined criterion using the initial estimate of at least a portion of the high resolution image. In addition, each forward imaging transformation corresponds to the manner in which each imager generates the input images, and the high resolution image has a resolution that is greater than any of the input images.

Abstract: An image processing device configured to be installed in a vehicle includes an image acquirer, an image selector, a first luminance adjuster, a synthetic image generator, and an image provider. The image acquirer acquires camera images captured by cameras provided on the vehicle. The image selector selects one of the camera images as a representative image based on luminances of the camera images. The first luminance adjuster adjusts a luminance of at least one of the other camera images based on a luminance of the representative image. The synthetic image generator generates a synthetic image showing a periphery of the vehicle, based on the representative image and the other camera images the luminance of at least one of which has been adjusted by the first adjuster. The image provider outputs, to a display device installed in the vehicle, information corresponding to the synthetic image.

Abstract: Provided is an image processing system capable of coping with data which is obtained in a new color filter array, and making full use of the performance of a receiving-side device by reducing the influence of a difference in the performance of the receiving-side device on an image quality. An image processing system 100 includes a transmitting-side device 101 and a receiving-side device 102. The transmitting-side device 101 generates intermediate data by preprocessing RAW data, generates three-plane color data by processing synchronization of the intermediate data, and outputs placement information for specifying pixel positions corresponding to the three-plane color data and the intermediate data. The receiving-side device 102 restores the intermediate data using the three-plane color data and the placement information from the transmitting-side device 101, and generates the three-plane color data from the restored intermediate data.

Abstract: An image processing apparatus divides image data captured while a flash light is not emitted into a plurality of areas, calculates color evaluation value for each of the divided areas. The apparatus divides image data captured while the flash light is emitted into a plurality of areas and to calculate color evaluation value for each of the divided areas. The apparatus determines a movement for each of the plurality of areas in accordance with the calculated color evaluation value and the calculated color evaluation value. The apparatus performs white balance processing into image data in accordance with the determined movement.

Abstract: A photographic apparatus with supplemental light adjusting function and the supplemental light adjusting method used in the same are provided. The photographic apparatus comprises a light source and a photographic element. The method comprises steps of: photographing by the photographic element; illuminating by the light source once the operating condition of a default photographing mode is conformed, and reaching a first supplemental light intensity by the light source within a first length of time; completing photographing by the photographic element once the light source reaches a second supplemental light intensity which is greater than the first supplemental light intensity.

Abstract: In an image capture apparatus and a method of controlling the apparatus which can apply image correction processing which influences the contrast of a shot image, image quality degradation of an image shot by using input-output characteristics where an output value logarithmically increases with a linear increase in input value is suppressed. When using input-output characteristics where an output value logarithmically increases with a linear increase in input value (S101), internal functional blocks are controlled to invalidate image correction functions which influence the tone characteristics or contrast of an image (S103).

Abstract: The embodiments of the present invention provide a method and an apparatus for controlling a working mode, and an electronic device. The method for controlling the working mode comprises: detecting, by an electronic device, an intensity of light entering a first camera; and switching, by the electronic device, the working mode, when detecting that a change of the intensity of light entering the first camera meets a first preset condition. The embodiments of the present invention can simplify the operation steps of the electronic device, and quickly and conveniently switch the working mode of the electronic device, such that the user obtains better experiences.

Abstract: In accordance with an example embodiment a method, apparatus and a computer program product are provided. The method comprises partitioning an image into a plurality of super pixel cell areas and determining surface orientations for the plurality of super pixel cell areas. A surface orientation is determined for a super pixel cell area based on depth information associated with the image. The method further comprises receiving at least one virtual light source indication for modifying an illumination associated with the image. The illumination is modified by modifying brightness associated with one or more super pixel cell areas from among the plurality of super pixel cell areas based on the at least one virtual light source indication and surface orientations corresponding to the one or more super pixel cell areas from among the determined surface orientations for the plurality of super pixel cell areas.

Abstract: In an image processing apparatus, a reduced image in which an input image having a color pattern of a plurality of colors of different pixel densities is reduced is generated. A luminance signal is generated from the reduced image. A contour compensation signal is generated from weighted color signals of the reduced image. The luminance signal and the contour compensation signal are combined. If a reduction ratio of the reduced image is greater than a threshold, a weighting used for a color signal for which a pixel density is high in the input image is increased in comparison to a case where the reduction ratio is not greater to the threshold.

Abstract: An apparatus for processing an image in a digital camera includes an image signal collection unit configured to process an image collected from a lens into image information using a CMOS image sensor (CIS), and an image correction unit configured to compensate for an intensity in response to a compensation curve corresponding to the image information collected by the image signal collection unit and output an image signal compensated depending on the intensity.

Abstract: An image capturing apparatus determines a scene of a captured image, and, depending on the scene determination result, performs image capture with an expanded dynamic range, or performs a dynamic range contraction process based on the captured image. In the case of executing the dynamic range expansion process, the image capturing apparatus performs image capture at a decreased ISO speed, and performs tone correction for compensating the decrease in ISO speed with respect to the captured image. The image capturing apparatus is thereby capable of performing image capture with a dynamic range that takes into consideration the subject and the scene.

Abstract: A method and an apparatus for acquiring an image of a subject are provided. The method for acquiring the image of the subject includes acquiring a first preliminary image and a second preliminary image of the subject through an image sensor operatively coupled to an electronic device, determining a candidate emission time relating to an acquisition of an output image of the subject, based on a difference between state information of at least part of the first preliminary image and state information of at least part of the second preliminary image, comparing the candidate emission time with a time corresponding to a synchronization period where a plurality of lines of the image sensor simultaneously acquires the output image, and acquiring the output image of the subject based on the comparison.

Abstract: A technique/system using imaging cameras to detect and actively track intense light sources, such as the Sun, then provide electronically-generated and localized shades, via the Liquid Crystal Display (LCD) shutter screen imbedded on viewing glasses or windshields, tracking the intense projections as they traverse across the viewing glasses during dynamic motion allowing the viewer to directly and comfortably observe the scene with intense light sources and any displays or objects in direct or nearby line-of-sight that are normally washed-out by eye saturation due to extremely intense illumination. This intense illumination shielding technique/system can be used for providing improved vision in situations where the viewing location is confined relative to the primary viewing glasses where direct observation or see-through may occur with intense light sources in view from the near and far field and also with the entire system in a dynamic motion environment.

Abstract: A method including: obtaining, with an image processing apparatus, a white point that corresponds to an image captured by a camera with only the natural light as a light source; obtaining, with the image processing apparatus, a white point that corresponds to an image captured by the camera with only the artificial light as a light source; determining, with the image processing apparatus, a ratio of an intensity of natural light for a pixel to an intensity of an artificial light for the pixel within an image captured by a camera under mixed illumination of the natural light and the artificial light; and determining, with the image processing apparatus, a white point for the pixel in the image under mixed illumination based on the ratio of the intensity of natural light to the intensity of artificial light for the pixel in the image, the white point for only the natural light, and the white point for only the artificial light.

Abstract: A digital camera includes: a horizontal reduction (resizing) processor 301 for reducing a RAW image from single-sensor color imaging device to an image corresponding to a video recording size in an input line direction; a memory section 303 storing horizontally resized image data; a plurality of vertical reduction (resizing) processors 304, 306, and 308 reducing (resizing), in a vertical direction orthogonal to the input line direction, a plurality of pieces of reduced line data read out from the memory section 303; and horizontal reduction (resizing) processors 310 and 312 reducing a plurality of images reduced (resized) in the horizontal and vertical directions back into images of a display size and a face detection size in the input line direction.

Abstract: An imaging apparatus disclosed in the present application includes a lens optical system including a lens and a stop; an imaging; and an array-form optical element located between the lens optical system and the imaging device and including optical components extending in a row direction in a plane vertical to an optical axis of the lens optical system, the optical components being arrayed in a column direction in the plane. The imaging device includes pixel groups, each of which includes first pixels arrayed in the row direction and second pixels arrayed in the row direction at positions adjacent, in the column direction, to the first pixels. The pixel groups are arrayed in the column direction. Border positions between the optical components are respectively offset in the column direction with respect to corresponding border positions between the pixel groups.

Abstract: A perceptual radiometric compensation system adaptable to a projector-camera system includes a brightness scaling unit that scales down brightness of an input image and obtains appearance attributes by a color appearance model (CAM). A hue adjustment unit adjusts hue of the input image toward tone of a colored projection surface by the CAM.

Abstract: An image processing apparatus obtains light field data, and selects a subject. The apparatus outputs restriction information which is information for not focusing on the selected subject, and is information for restricting reconstruction of the light field data.

Abstract: An imaging control device for controlling a facial image taking apparatus which radiates light from a light source to a face and takes an image of the face is disclosed. The imaging control device determines an intensity of environmental light and a degree of reflection by a pair of eyeglasses. When it is determined that the intensity of the environmental light is greater than or equal to a predetermined determination value and the degree of the reflection by the eyeglasses is greater than or equal to a predetermined determination value, the imaging control device sets an intensity of the light radiated from the light source to a predetermined intensity that makes states of eyes in the facial image recognizable.

Abstract: There is provided an information processing device including a detection unit configured to detect a motion of the information processing device, a setting unit configured to set a location or orientation of a virtual light source for an image having depth information based on a result of the detection performed by the detection unit, and a display control unit configured to apply an illumination effect to the image based on the location or orientation of the virtual light source set by the setting unit and the depth information.

Abstract: An image processing device includes a dynamic range compressor that changes a characteristic of a tone curve depending on a position on input image data so as to compress a dynamic range of the image data, and a coordinate converter that converts coordinates of the image data of which the dynamic range has been compressed.

Abstract: A low-frequency region of an output target image is specified. Luminance correction is performed with the target amount decided in advance for a pixel, among pixels included in the target image, which is included in the low-frequency region and has a luminance value equal to or smaller than a predetermined value, and the target image after the correction is output. Then, an effective correction amount is obtained based on the luminance distribution of the target image before the correction and the luminance distribution of the target image after the correction, which has been corrected with the target amount decided in advance. A luminance correction target amount for the next correction target image is decided based on the luminance distribution of the target image and the ratio of the effective correction amount to the target amount decided in advance.

Abstract: A lens on an image capture device is illuminated with a known light source. The current light field created by illuminating the lens is measured at an image sensor on the device. In response to detecting that the current light field measurement fails to satisfy a threshold, a notification is provided on the device.

Abstract: An imaging system 100 for imaging a sample in a medium carried in a container WP as an imaging object comprises: an imager 21 which obtains an original image by imaging the imaging object; and a data processor 33 which generates multi-gradation image data by performing a gradation correction on the original image, wherein the data processor 33 associates a luminance value corresponding to a luminance of the medium in the original image with a maximum gradation value in the gradation correction.

Abstract: According to one embodiment, a solid state imaging device includes an imaging substrate unit, a lens unit, and a color filter unit. The imaging substrate unit has a major surface including first region and second regions including pixels. The lens unit is separated from the major surface in a first direction perpendicular to the major surface. The lens unit includes a first lens overlapping the pixels of the first region when projected onto the major surface and a second lens overlapping the pixels of the second region when projected onto the major surface. The color filter unit is provided between the imaging substrate unit and the lens unit and is separated from the imaging substrate unit. The color filter unit includes a first color filter provided between the first region and the first lens, and a second color filter provided between the second region and the second lens.

Abstract: An image processing apparatus capable of properly synthesizing a strobe-illuminated image and non-strobe-illuminated images, irrespective of a condition for illuminating a photographic subject. A sensitivity of strobe emission photographing is set to be lower than a sensitivity of non-strobe emission photographing, and a strobe-illuminated image and plural sheets of non-strobe-illuminated images are continuously photographed with the set sensitivities. The strobe-illuminated image is gain-processed with a gain amount, and positional deviations of the plural sheets of non-strobe-illuminated images relative to the strobe-illuminated image are corrected. An averaged image obtained by synthesizing the gain-processed image and the images after the positional deviation correction is synthesized with the strobe-illuminated image, while taking account of amounts of strobe illumination in the strobe-illuminated image, thereby obtaining a synthesized image.

Abstract: An imaging apparatus includes: an unpolarized light-emitting portion configured to emit light having an unpolarized component; a polarized light-emitting portion configured to emit light having a predetermined polarized component via a first polarization filter; and an imaging element configured to image a subject, which is irradiated with light by one of the unpolarized light-emitting portion and the polarized light-emitting portion, through a second polarization filter, the first polarization filter and the second polarization filter having polarization directions in an orthogonal relationship to each other, the imaging element being further configured to image the subject irradiated with light by the unpolarized light-emitting portion and the subject irradiated with light by the polarized light-emitting portion in a time division manner and output an unpolarized light image and an orthogonal polarized light image that are obtained as a result of imaging.

Abstract: An imaging device 100 is equipped with an image acquisition unit 51, a first calculation unit 52 and a correction information calculation unit 53. The image acquisition unit 51 acquires image data including a luminance component and color components, via an optical system. The first calculation unit 52 detects shading of the luminance component included in the image data, and detects shading of the color difference components. The correction information calculation unit 53 calculates luminance shading correction coefficients and color difference shading correction coefficients. The correction information calculation unit 53 then converts the calculated color difference shading correction coefficients so as to have predetermined ratios with respect to the calculated luminance shading correction coefficients. A correction processing unit 62 corrects plural sets of image data on the basis of the converted color difference shading correction coefficients, and then performs pixel addition of the images.

Abstract: The amount of resources needed to provide automatic exposure control (AEC) for a camera of a computing device, as well as the amount of latency required to determine an appropriate exposure setting for current conditions, can be improved utilizing an ambient light sensor (ALS) that is integrated with a camera module corresponding to the camera. The ALS can capture data regarding the amount of ambient light around the device, and a microprocessor or other component of the camera module can analyze the data using an AEC algorithm or other such process to determine one or more initial exposure settings for the camera. This process can be completed without sending image data to a host processor or other such component. Providing relatively accurate initial exposure settings can, in at least many situations, enable the AEC algorithm to more quickly converge to proper settings than is possible using conventional approaches.

Abstract: An apparatus and method for compensating for back light of an image are provided. The method includes receiving an image at a preset time interval, upon receiving the image, dividing pixels constituting the received image according to preset ranges, determining whether the received image is a back light image by confirming a distribution degree of pixels of each of the divided ranges, adjusting the brightness of the back light image when the received image is the back light image, and storing the received image and the back light compensated image.

Abstract: An imaging apparatus includes an imaging unit configured to capture an object image, a smoothing unit configured to smooth a dynamic range of luminance of an image signal generated based on the object image captured by the imaging unit, and a color conversion unit configured to perform a color conversion with respect to a color of the image signal whose dynamic range is smoothed by the smoothing unit and is specified by a user.

Abstract: Image tone adjustment using local tone curve computation may be utilized to adjust luminance ranges for images. Image tone adjustment using local tone curve computation may reduce the overall contrast of an image, while maintaining local contrast in smaller areas, such as in images capturing brightly lit scenes where the difference in intensity between brightest and darkest areas is large. A desired brightness representation of the image may be generated including target luminance values for corresponding blocks of the image. For each block, one or more tone adjustment values may be computed, that when jointly applied to the respective histograms for the block and neighboring blocks results in the luminance values that match corresponding target values. The tone adjustment values may be determined by solving an under-constrained optimization problem such that optimization constraints are minimized. The image may then be adjusted according to the computed tone adjustment values.

Abstract: An image processing apparatus includes: an image acquiring unit that acquires an image signal of a monochromatic image acquired by imaging a subject and an image signal of a color image acquired by imaging the subject, the color image having at least a plurality of pieces of color information; and an interpolation processing unit that generates an interpolated image by interpolating color information missing at each pixel forming the color image, based on a signal value of each pixel forming the monochromatic image.

Abstract: This invention discloses an image pickup device and an image synthesis method thereof The image pickup device comprises an image-pickup module, an image-synthesis module, a database and a processing module. The image-pickup module captures a plurality of temporary images of a scene. The image-synthesis module extracts a part of each temporary image and combines the parts to form a panorama temporary image, and splits the panorama temporary image into a plurality of zone-areas according to at least one threshold value and a panorama luminosity histogram. The database stores a lookup table for recording a plurality of exposure values. The plurality of the exposure values correspond to luminance values of the zone-areas respectively. The processing module obtains the plurality of exposure values corresponding to the luminance values and obtains a weighting-exposure value by an equation, and controls the image-pickup module to capture the panorama image according to the weighting-exposure value.

Abstract: A novel lighting system includes an image capture device, an image processor, and an image projector. In a particular embodiment, the image capture device captures and converts images of a subject into image data, the image processor generates illumination patterns based on the image data, and the image projector projects the illumination patterns onto the subject. Optionally, the lighting system includes a controlled feedback mechanism for periodically updating the illumination pattern. In a more particular embodiment, the lighting system continually updates the illumination pattern to illuminate the subject in real-time.

Abstract: An image pickup apparatus generates a display image signal by implementing predetermined dynamic range expansion processing on an image signal obtained by performing underexposed image pickup, and detects an image region in which a pixel within a predetermined gradation range exists as a warning region from the image signal either prior to implementation of the predetermined dynamic range expansion processing or following implementation of the predetermined dynamic range expansion processing. The image pickup apparatus synthesizes the display image signal with a warning pattern corresponding to the warning region and displays the synthesized image as a live view image.

Abstract: A flash detection unit calculates a line average luminance of each line of the current screen of image data and a screen average luminance of a past screen at least one screen before the current screen and compares the calculated line average luminance with the calculated screen average luminance to detect whether the current screen includes a line of high luminance due to a flash. A holding unit holds the past screen of the image data. A flash correction unit, if it is detected that some lines of the current screen have high luminance, replaces the lines having high luminance in the current screen with corresponding lines of the past screen held in the holding unit to correct the image data.

Abstract: Systems, methods, and devices for obtaining a properly exposed strobe-illuminated image are provided. One method for doing so may include, for example, gathering image capture statistics during a first period when a strobe is not emitting light and during a second period when the strobe emits a preflash. These image capture statistics may include distinct image capture control statistics and luma values associated with the periods. Final image capture control statistics then may be determined based at least in part on the first luma value normalized to the first image capture control statistics and the second luma value normalized to the second image capture control statistics. Thereafter, the final image capture control statistics may be used to capture a properly exposed strobe-illuminated image when the strobe emits a main flash.

Abstract: An image processing apparatus includes a clip part and an incremental processing part. The clip part sets a threshold value as an output luminance value of a process object pixel when a luminance value of the process object pixel of an image data having luminance values of a plurality of pixels is less than the threshold value set in advance. The incremental processing part finds and holds an incremental value of the output luminance value relative to the luminance value of the process object pixel, and finds the output luminance value of the process object pixel by subtracting the incremental value from the luminance value when the luminance value of the process object pixel is the threshold value or more.

Abstract: The purpose of the present invention is to provide sophisticated AWB technologies. According to one aspect of the present invention, there is provided a technology for adjusting a white balance of a frame of image data including a plurality of color elements. This technology is characterized by comprising: dividing the frame into a plurality of blocks including a plurality of pixel data; judging, for each of all of or a part of the blocks, whether the block is likely to be grey or not, and; deciding gains for adjusting a white balance using the blocks judged as being likely to be grey.

Abstract: An image processing method includes adjusting a brightness of each of a first image and a second image based on a first exposure time when the first image is captured and a second exposure time when the second image is captured, respectively, the first and second images being generated by capturing a same object under different light conditions, estimating an intensity of light, reaching the object when the second image is captured, based on the adjusted brightness of each of the first and second images, separating the second image into two or more regions according to the estimated intensity of light, determining a target brightness that a final result image is to have, adjusting the brightness of the second image, by different amounts for each of the separated regions, based on the target brightness and generate the final result image based on the adjusted brightness of the second image.

Abstract: A method and apparatus for generating an image of a seal impression. N still images of a face of a seal are combined. N is at least 2. The N still images of the face correspond respectively to N beams of light that had previously irradiated the face in succession from N respective different directions respectively corresponding to N different angles of incidence of the light on the face. The combining of the N images include generating in the composite image a common area of pixels that commonly appears on the face of the seal in all still images of the N still images. The common area includes a character area pertaining to where an engraved character is located on the face of the seal.

Abstract: An image processing apparatus includes an input unit configured to receive an input image to be processed; a brightness-information extracting unit configured to extract, from the image, brightness information indicating brightness of the whole image; a luminance-value-distribution-information extracting unit configured to extract, from the image, luminance-value-distribution information indicating a distribution of luminance values in the image; and a scene determining unit configured to determine a scene of an object included in the image on the basis of the extracted brightness information and the extracted luminance-value-distribution information.

Abstract: An image pickup apparatus includes an image pickup element including a plurality of pixels corresponding to a plurality of respective micro lenses and the first photoelectric conversion portion and the second photoelectric conversion portion that are included in each of the pixels and share a corresponding one of the micro lenses, and a signal processing unit configured to correct an addition signal of outputs from the first photoelectric conversion portion and the second photoelectric conversion portion included in each of the pixels and a first signal generated from a plurality of signals of the first photoelectric conversion portions corresponding to the micro lenses, and the signal processing unit corrects the addition signal for each of the pixels and corrects the first signal for the first photoelectric conversion portions.

Abstract: A solid-state imaging device includes a pixel array unit in which unit pixels are arranged in a matrix shape and a signal processing circuit that obtains a first video signal and performs processing for combining the first and second video signals. The signal processing circuit includes judging means that judges whether a pixel of interest in the pixel array unit is a pixel to be saturated during an exposure period, calculating means that sets the pixel of interest as a correction pixel and calculates a correction amount on the basis of a luminance value of the second video signal of a peripheral pixel of the correction pixel, and correcting means that applies the correction amount to a luminance value of the first video signal of the correction pixel to thereby correct a noise signal amount due to photo-charges leaking from the peripheral pixel into the correction pixel.

Abstract: Embodiments of the disclosure compensate for global movement and in-scene movement during image capture by a computing device. A sequence of images is accessed by the computing device. Accelerometer readings and/or gyroscope readings corresponding to each of the accessed images are used by the computing device for calculating global movement among each of the accessed images. Each of the accessed images is re-aligned based on the calculated global movement. The re-aligned images are combined into a single output image. The intensity values of each of the pixels in the re-aligned images are compared with the intensity values of each of the corresponding pixels in a reference image. Based on the comparison, the intensity values associated with the pixels in the re-aligned images are selectively accumulated to generate an output image that is blur-free, low-light enhanced, and high dynamic range.

Abstract: Provided is a color lighting control method including a lighting device having a plurality of lighting unit, the method including the steps of: (a) applying predetermined input voltages to the plurality of lighting units respectively and obtaining image data through the camera; (b) calculating an image histogram that is a distribution graph for displaying the number of pixels corresponding to each monochrome level intensity through the image data; (c) calculating a standard deviation of the image histogram; and (d) calculating an optimal input voltage value for each of the plurality of lighting units within an adjustment range of the predetermined input voltages, wherein the optimal input voltage value maximizes the standard deviation.

Abstract: The present invention relates to methods and apparatuses for providing guide information for a camera. An image is collected through the camera. The image includes a subject illuminated by a light source. An optimized direction is determined for the light source relative to the subject. Guide information is generated that specifies an adjustment of the light source relative to the subject for achieving the optimized direction for the light source. The generated guide information is outputted to provide a visual, audible, or tactile indication.

Abstract: A chromaticity correction device corrects chromaticity of a video signal displayed on a display panel of a display device to correspond to a change in a luminance value of the display panel. The chromaticity correction device includes a luminance detection unit which detects the luminance value, a backlight driving level detection unit which detects a backlight driving level, a temperature detection unit which detects an internal device temperature or an ambient temperature, a reference luminance value calculation unit which estimates a reference luminance value in a characteristic of an initial state, a chromaticity calculation unit which obtains a chromaticity change amount of white point chromaticity and estimated white point chromaticity that is an estimated value of current white point chromaticity, a chromaticity correction value calculation unit which obtains a chromaticity correction value and a chromaticity correction circuit which corrects the chromaticity of the video signal.