Abstract: A video signal processor is provided, having an inverse quantizer, an inverse transform processor, an in-loop filter; and a decoded picture buffer. The video signal processor is configured to receive a video signal including a picture comprising quantized pixels, wherein the picture includes a first region and a second region. The first region comprising a first plurality of blocks and having a first quantization parameter based on a first average measure of spatial activity information of the first plurality of blocks; and a second region comprising a second plurality of blocks and having a second quantization parameter based on a second average measure of information of the second plurality of blocks. The inverse quantizer being configured to inverse quantize the pixels of the blocks comprising the first region using the first quantization parameter and inverse quantize the pixels of the blocks comprising the second region using the second quantization parameter.

Abstract: A power system for display apparatuses, which may predict in real time the amount of supplied current for displaying an image in a display apparatus, includes an image data analyzer analyzing image data input from the outside to predict a pixel degradation degree of each of pixels included in a display panel and predicting an amount of current supplied to the display panel on the basis of the predicted pixel degradation degree and a power supply supplying the display panel with power corresponding to the predicted amount of supplied current.

Abstract: An image processing apparatus includes a first obtainment unit configured to obtain high dynamic range (HDR) data that represents a high-dynamic range (HDR) image, a second obtainment unit configured to obtain print information to perform printing based on the HDR data obtained by the first obtainment unit, a third obtainment unit configured to obtain display information of a display apparatus that is to perform a display based on the HDR data, and a conversion unit configured to perform dynamic range conversion based on the display information obtained by the third obtainment unit, and then to perform dynamic range conversion based on the print information obtained by the second obtainment unit.

Abstract: An image processing apparatus includes a graphical image generator that generates a first graphical image and a second graphical image, and a mode switching unit that switches between a first display mode and a second display mode so that a display displays the first graphical image or the second graphical image. Each graphical image includes a color wheel indicating a two-dimensional color space of hue and saturation and a lightness bar indicating a one-dimensional color space of lightness. In the first graphical image, each position in the color wheel and the lightness bar is indicated by the hue and saturation indicated by that position. In the second graphical image, a distribution of colors included in the color image in the color space of hue and saturation or the color space of lightness is superposed on the color wheel and the lightness bar.

Abstract: An image is processed using a combination of techniques, particularly, in which low frequency information is processed using multiple tone control and high frequency information is processed using local tone mapping. An image is divided into a plurality of blocks including a given block. Low frequency information and high frequency information of the given block are separated. The low frequency information is processed using multiple tone control. The high frequency information is processed using local tone mapping. A processed image is then produced based on the processed low frequency information and based on the processed high frequency information, the processed image corresponding to the image captured using the image sensor. The processed image is then output for storage or display. Processing the low frequency information can include using a gain curve and bilinear interpolation. Processing the high frequency information can include using an edge preservation filter.

Abstract: A color measurement apparatus comprising: a color measurement unit configured to perform color measurement of an image on a sheet, the color measurement unit including a light source; a reference member used for calibration of the color measurement unit; a moving unit configured to move the color measurement unit to a first position at which the light source irradiates a region other than the reference member with light and a second position at which the light source irradiates the reference member with light; and a control unit configured to, after causing the light source to emit light when the color measurement unit is positioned at the first position, and then moving the color measurement unit to the second position, execute the calibration based on data obtained by causing the light source to irradiate the reference member with light.

Abstract: Some embodiments provide an image editing application that edits an image. The image editing application displays an image in a display area. The image editing application displays a rotatable user interface item. In response to receiving a user input, the image editing application rotates the rotatable user interface item. The image editing application rotates the image displayed in the display area based on the rotation of the rotatable user interface item.

Abstract: A method for identifying electronic device is applied to a terminal device and includes: sending, in response to receiving a power-on signal of the electronic device, a detection signal to the electronic device; acquiring waveform information of the detection signal; and determining a type of the electronic device according to the waveform information.

Abstract: A method at a print device may include receiving, from a supply, signals indicative of a print functionality from a set of authorizable functionalities for the print device. The set of authorizable functionalities may comprise: (1) a color depletion print mode, (2) an increased resolution print mode, (3) a refill pump increased speed mode, or a combination thereof. The method may also include enabling the print functionality on the print device based on the received signals.

Abstract: A method, in which one or more processing devices perform operations, includes compiling a static shader at initialization of a media-processing application. The static shader is configured to transform color data from multiple pre-transform color spaces to multiple post-transform color spaces. A runtime of the media-processing application occurs subsequent to the initialization, and the method further includes determining, during the runtime, that the static shader is applicable to a color transform from a pre-transform color space to a post-transform color space. The method further includes executing the static shader to perform the color transform, based on determining that the static shader is applicable to the color transform.

Abstract: The present disclosure provides devices, systems and computer-readable media for identifying object characteristics using a machine learning model trained to de-emphasize brightness values. The machine learning model can be trained using modified training data. Modifying the training data can include converting the training data from an original color space into a color space having a brightness channel. The values of the brightness channel for the training data can then be modified. After the values of the brightness channel are modified, the training data can be converted back into the original color space and used to train the machine learning model. A detection device can be configured with the machine learning model and used to identify object characteristics.

Abstract: A USB Type-C receiver device, includes: a port including a channel configuration input; a ground pin; and a protection circuit for protection against high voltages on the channel configuration input, wherein the protection circuit includes a resistive circuit coupled between the channel configuration input and the ground terminal and configured to form both a voltage divider and a resistive pull-down circuit coupled between the channel configuration input and the ground pin.

Abstract: A device link profile adjustment method of a computer carrying out a process of adjusting a device link table in a device link profile expressing a correspondence relationship between a first coordinate value of a first device-dependent color space and a second coordinate value of a second device-dependent color space, the method including: accepting an adjustment target at an adjustment point, using a coordinate in a profile connection space as a reference; and adjusting the device link table based on the adjustment target and a color conversion table including a device-independent coordinate value of the profile connection space of an original profile used to create the device link table.

Abstract: A method for generating a high dynamic range image (HDRI) includes acquiring a first illuminance diagram, generating a second illuminance diagram from the first illuminance diagram by modifying a dynamic range of at least a portion of the first illuminance diagram, and generating the HDRI based on the second illumination diagram. The first illuminance diagram is obtained based on a camera response function and an illuminance logarithm obtained based on a plurality of images having different exposure conditions.

Abstract: A method of noise filtering an image is presented. The method includes the steps of (A) computing a non-smooth amount for at least one area of the image, (B) computing a tone value for the at least one area of the image, (C) computing an adjusted non-smooth amount for the at least one area by adjusting the non-smooth amount for the at least one area of the image based on the tone value for the at least one area of the image, and (D) performing one or more image processing steps on the at least one area of the image based on the adjusted non-smooth amount.

Abstract: A method and device for reconstructing image data is provided that is representative of an original image data from a decoded image data and parameters obtained from a bitstream, the parameters having been processed from said original image data. The method provides a desaturating of a luma component, an inverse-mapping of desaturated luma component and a correction of chroma components. These operations are being modulated according to the value of a single modulation factor mod representative of a peak luminance of a presentation display on which the reconstructed image is intended to be displayed, a peak luminance of a particular range image and a peak luminance of the original image data or the mastering display used to grade the original image data.

Abstract: The present disclosure relates to a color vector conversion method and device suitable for a display device. The method includes determining a three-dimensional vector of a first intersection point according to the three-dimensional vector of the to-be-converted point and a three-dimensional vector of a reference point. The method includes determining a three-dimensional vector of a second intersection point according to the three-dimensional vector of the first intersection point and a three-dimensional vector of a first vertex. The method includes converting the three-dimensional vector of the second intersection point to an N-dimensional vector according to N-dimensional vectors of two endpoints located on the first side. The method includes determining an N-dimensional vector of the first intersection point according to the N-dimensional vector of the second intersection point.

Abstract: In a method to improve the coding efficiency of high-dynamic range images coded in a perceptually quantized IPT color space (IPT-PQ), the values of the chroma components (P/T) of an input signal in IPT-PQ color space are divided by a factor of two before being encoded with standard-based encoders, such as AVC or HEVC; thus better matching the covariance characteristics of YCbCr signals. In addition, the order of the P and T chroma components may be swapped and the sign of the T chroma component may be inverted. Color transformation matrices for efficient forward and backward reshaping in the IPT-PQ color space are provided.

Abstract: An image processing apparatus comprises an input unit configured to input a plurality of image data shot with a plurality of different exposures; a determination unit configured to determine whether each of the plurality of image data includes an exposure defect; a generation unit configured to generate a plurality of panoramic images respectively corresponding to the plurality of exposures by panoramically composing a plurality of image data shot with the same exposure based on a result of the determination; an alignment unit configured to perform alignment between the plurality of panoramic images using image data determined not to include the exposure defect and image data obtained by performing luminance correction for image data determined to include the exposure defect; and a composition unit configured to perform high dynamic range composition for the plurality of aligned panoramic images.

Abstract: The present invention provides a method and apparatus for generating a high dynamic range image (HDRI). After acquiring a first illuminance diagram, a base layer and detail layers are extracted from the first illuminance diagram, where the base layer contains low frequency information of the first illuminance diagram and the detail layers contain high frequency information of the first illuminance diagram. The dynamic range of the base layer is then compressed while dynamic ranges of the detail layers remain uncompressed. Further, a second illuminance diagram is generated from the first illuminance diagram by fusing the base layer with the compressed dynamic range and the detail layers, the second illuminance diagram is mapped onto a plurality of preset color channels; and the images on the plurality of preset color channels are fused into the HDRI. Therefore, the detail information in the original illuminance diagram can be preserved.

Abstract: The disclosure extends to methods, systems, and computer program products for producing an image in light deficient environments with luminance and chrominance emitted from a controlled light source.

Abstract: The present principles relate to a method and a device for reducing noise in a component of a picture. The method includes obtaining a low-pass filtered component by low-pass filtering the component of the picture, for a current pixel in the component of the picture. For at least one current neighboring pixel of the current pixel, computing a distance, relative to the current neighboring pixel, between the value of the current pixel in the low-pass filtered component and the value of the current neighboring pixel in the low-pass filtered component. When the distances relative to the at least one neighboring pixels of the current pixel are lower than a first threshold, modifying the value of the current pixel in said component of the picture according to a linear combination of the value of the current pixel in the component of the picture and the value of the current pixel in the low-pass filtered component.

Abstract: An image processing apparatus performs color adjustment based on an original document read by a reading device. The image processing apparatus includes an image data acquirer configured to acquire image data that is generated as the reading device reads a gradation pattern formed on a recording sheet; a density corrector configured to extract, from the image data, a color component by which a read value of a process color changes according to variations in a total spectral sensitivity characteristic of the reading device, and correct a read value of the color component to a reference density; and a color adjuster configured to perform the color adjustment on the color component, based on a difference between the read value of the color component that has been corrected to the reference density and a read value that is a reference of the reading device.

Abstract: An object is to more accurately compare diagnosis indexes with each other, which are calculated from data obtained in different environments with a cardiac-function diagnostic medicine. A conversion function calculation unit acquires a first phantom Heart/Mediastinum ratio (H/M ratio) and a second phantom H/M ratio based on a phantom, the first phantom H/M ratio that is an H/M ratio of the phantom in the first imaging environment being acquired by performing, based on phantom data that is data of a first phantom image obtained by imaging the phantom in the first imaging environment and digital phantom data that is data of a digital phantom including a cardiac ROI and a mediastinum ROI, positioning of the digital phantom on the first phantom image, and by calculating based on the phantom data of the first phantom image to which the cardiac ROI and the mediastinum ROI are set; and obtains a conversion function based on the first phantom H/M ratio and the second phantom H/M ratio.

Abstract: An image processing apparatus includes a skin area extraction unit that extracts a skin area from image data, a chromaticity computation unit that computes hue information and saturation information of the skin area, a hue conversion unit that converts the hue information so that the hue information is in agreement with target information, a reception unit that receives a change instruction to change the saturation information, a parameter determination unit that determines a conversion parameter based on the change instruction, and a saturation conversion unit that converts the saturation information based on the conversion parameter.

Abstract: An image processing apparatus includes a setting unit, an averaging unit, a determination unit, a quantization unit, an addition unit and a detection unit. The averaging unit divides image data based on a division size and phase set by the setting unit to subject pixels included in the resultant respective division regions to an averaging processing to calculate an average value. The quantization unit configured to obtain a quantization value for each of the plurality of pixels. The addition unit adds the quantization values, that are obtained so that at least one of the division size and the phase is different from the other, to generate addition image data. The determination unit determines the quantization threshold value so that the quantization threshold value in a case where the division size is a first size is higher than the quantization threshold value in a case where the division size is a second size larger than the first size.

Abstract: The image processing device includes a gradation correction unit (gamma correction processing unit 33) which performs gradation correction, a restoration processing unit, a sharpening processing unit, a sharpening and recovery control unit 37 which is able to adjust a restoration rate of restoration processing and a sharpening rate of sharpening processing by controlling the restoration processing unit and the sharpening processing unit, a sharpening and recovery control unit 37 which acquires a total sharpening and restoration rate based on the restoration rate and the sharpening rate and one rate of the restoration rate and the sharpening rate and calculates the other rate of the restoration rate and the sharpening rate based on the total sharpening and restoration rate, and a brightness information acquisition unit. The sharpening and recovery control unit adjusts the restoration rate and the sharpening rate according to acquired brightness information.

Abstract: An original image is subjected to reduction processing while minimizing cutting of intrinsically-reproducible frequency bands. A solid-state image-capturing device is provided with: a photoelectric conversion unit that is formed by arraying pixels of a plurality of colors having predetermined color-array periodicity in two-dimensionally, vertically and horizontally; a pixel mixing and reading unit that mixes pixel signals obtained by the photoelectric conversion unit, in each of pixels of the same colors in an n×n (n denotes a desired integer of 2 or more) block, and that outputs multi-channel reduced image signals with a reduction ratio 1/n; and an inter-channel displacement correcting unit that corrects inter-channel displacements of the reduced image signals output by the pixel mixing and reading unit and that outputs corrected reduced image signals.

Abstract: An adaptable eye artifact identification and correction method is disclosed. Eye artifacts are identified and classified based on color, severity, shape, eye location, and cause. Based on this classification, an eye artifact correction algorithm is selected from a series of eye artifact correction techniques. For minor artifacts, simple color correction techniques are deployed to restore the iris color and to drive the pupil to once again appear black. For severe eye artifacts face detection and metadata analysis are utilized to search the user's image collection for recent images of the subject without the eye artifact condition. Once located, these images provide eye color and shape information for use to replace the pixels expressing the eye artifact condition. The non-artifact eye images are used to provide the appropriate eye color and shape to correct the eye artifact condition for more severe eye artifacts.

Abstract: An image pickup apparatus which is capable of setting image quality as desired by a user when performing tone correction according to a luminance histogram of a taken image. A luminance histogram obtaining unit obtains a luminance histogram from image data. A luminance tone correction unit performs tone correction on the image data using a correction curve generated based on the obtained luminance histogram. A user setting unit receives a setting as to a correction intensity of the tone correction from the user and sets parameters for determining coordinate values of control points on the correction curve. A luminance tone control unit generates the correction curve based on the luminance histogram and determines the coordinate value according to the parameters set by the user setting unit.

Abstract: An image processing apparatus includes a color component image generator for extracting a particular color component from an input image to generate a color component image, an expanded-color-component image generator for expanding particular pixels in the color component image to generate an expanded-color-component image, an edge pixel extractor for extracting edge pixels from the expanded-color-component image, and a document region detector for detecting a document region from the edge pixels.

Abstract: A method of processing an image is disclosed. The method comprises obtaining an image decomposed into a set of scaled images, each being characterized by a different image-scale; and calculating, for each of at least some scaled images, a relative luminance between the scaled image and another scaled image of the set, using intensities in the scaled image and intensities in the another scaled image. The method further comprises processing each scaled image using an adaptation procedure featuring an image-specific effective saturation function of the relative luminance, thereby providing a processed scaled image; combining at least some of the processed scaled images to provide a combined image; and outputting the combined image to a computer readable medium.

Abstract: A method of producing a color image using a display comprised of pixels comprising red, green and blue primary color subpixels. The method comprises reducing the color gamut and increasing the brightness of the image relative to a base level, decreasing power to the display to reduce the brightness of the image, restoring color to the image to approximately the base level by modifying image pixel data using a three-dimensional lookup table to produce output image pixel data, and communicating the output image pixel data to the display. The display may be an LCD display, an LED display, an OLED display, a plasma display, and a DMD projector. Reducing the color gamut and increasing the brightness of the image may be accomplished by adding white to the image. The white may be added adaptively according to an algorithm by which the amount of white added decreases with increasing color saturation.

Abstract: A display processing apparatus includes a first correcting unit that, based on original data containing first-type color image data that indicates a color image in each drawing area and containing first-type gloss control image data that indicates a type of gloss effect to be given to a recording medium and indicates a gloss area to which the gloss effect is to be given in each drawing area, corrects color saturation of an area in the first-type color image data that corresponds to the gloss area specified by the first-type gloss control image data depending on the type of gloss effect, to thereby generate first-type corrected image data; and a display control unit that, on a display unit, displays the first-type corrected image data as a print preview of a projected printing result of the original data.

Abstract: Methods and apparatuses for adjusting a global dynamic range of an image are described. An image is decomposed into (i) a low spatial frequency component and (ii) a high spatial frequency component. The global dynamic range of the low spatial frequency component is adjusted to produce an adjusted low spatial frequency component. The image is reconstructed with (i) the adjusted low spatial frequency component and (ii) the high spatial frequency component to thereby produce a processed image.

Abstract: A photoelectric conversion apparatus has: a plurality of pixels having mutually different color filters, and generating pixel signals by a photoelectric conversion; a color selecting switch for selecting the pixel signals generated by the plurality of pixels having mutually different color filters; a first amplifier circuit for amplifying at mutually different gains the pixel signals generated by the pixels having mutually different color filters and selected by the color selecting switch; a reference voltage connecting switch for selecting a reference voltage; and a second amplifier circuit for amplifying at mutually different gains the reference voltages correspondingly to the pixel signals of mutually different colors.

Abstract: An image forming apparatus is a color converting device for converting a first color value acquired from printing data to a second color value. A color position calculating section calculates a hue plane and a chroma of the first color value. A color value converting section converts the first color value to the second color value using a K-monochrome color conversion table in which achromatic colors are set as monochromatic colors when the chroma of the first color value calculated by the color position calculating section is greater than a chroma threshold value ?, and using a hue plane color conversion table in which the achromatic colors are set as mixed colors of a plurality of colors when the chroma is not greater than the chroma threshold value ?.

Abstract: An image formation apparatus includes: a data generation unit configured to generate image data based on image formation data giving an instruction to print an image including image regions, the image data indicating pixel values of the image regions; and an image formation unit configured to form the image on a recording medium based on the image data generated by the data generation unit. The data generation unit generates the image data such that a boundary between one of the image regions and an image region adjacent to the one image region is highlighted, if the pixel value of the one image region and the pixel value of the adjacent image region are approximate to each other.

Abstract: An image processing device includes a processor and a memory storing computer-readable instructions therein. The computer-readable instructions, when executed by the processor, cause the image processing device to perform: acquiring a plurality of hue values from a plurality of pixels of the image; determining an index value of the image based on the plurality of hue values, the index value representing a degree of change in hue of the image before and after executing a color conversion on the image; and setting a color conversion method to a first method when the index value represents that the degree of change in hue of the image is comparatively low, and setting the color conversion method to a second method when the index value represents that the degree of change in hue of the image is comparatively high.

Abstract: A method of processing an image is disclosed. The method comprises obtaining an image decomposed into a set of scaled images, each being characterized by a different image-scale; and calculating, for each of at least some scaled images, a relative luminance between the scaled image and another scaled image of the set, using intensities in the scaled image and intensities in the another scaled image. The method further comprises processing each scaled image using an adaptation procedure featuring an image-specific effective saturation function of the relative luminance, thereby providing a processed scaled image; combining at least some of the processed scaled images to provide a combined image; and outputting the combined image to a computer readable medium.

Abstract: In a case where a determination is made that a density of a pixel of interest is greater than a threshold, or in a case where a pixel having a greater density than the threshold is present in a neighborhood of the pixel of interest at a predetermined distance from the pixel of interest, exposure with intensity corresponding to a density of the pixel of interest to which a predetermined density has not been added is performed on a photoreceptor drum at a position corresponding to the pixel of interest. Otherwise, exposure with intensity corresponding to a density of the pixel of interest to which the predetermined density has been added is performed on the photoreceptor drum at the position corresponding to the pixel of interest.

Abstract: An image forming apparatus includes a data converting module, a communicating unit, a differential data obtaining module, and a combining module. The data converting module is configured to convert image data to displayed image data. The communicating unit is configured to send via a network the displayed image, and to receive an edited displayed image via the network which is edited based on the displayed image. The differential data obtaining module is configured to obtain differential data of at least a difference between the image data and the edited image data. The combining module is configured to combine the image data with the differential data into combined image data.

Abstract: An image processing device comprises: a first output device having a first color gamut and outputting an image based on a given first color reproduction target value; a second output device having a second color gamut and outputting an image based on a second color reproduction target value; a color gamut information acquirer for acquiring a first color gamut information relating to the first color gamut of the first output device and a second color gamut information relating to the second color gamut of the second output device; and a target value generator for producing a second color reproduction target value for the second output device by correcting the given color reproduction target value for the first output device based on acquired first and second color gamut information by the color gamut information acquirer.

Abstract: A gradation-correcting curve to correct a gradation of an input image is generated. Gradation correction based on the gradation-correcting curve is made to a boundary pixel of a color-reproduction space at the same saturation as that of a target lattice point and at a hue of the target lattice point. An equal-saturation line is set by using the boundary pixel of the color-reproduction space after the gradation correction. A saturation-correction amount of the target lattice point is decided based on the gradation-correcting curve and the equal-saturation line.

Abstract: An image forming apparatus includes a base value setting unit and a correction value calculating unit. The base value setting unit sets a base value of an image process condition on the basis of the area ratio of an image to be formed. The correction value calculating unit calculates a correction value obtained by correcting the base value set by the base value setting unit on the basis of at least the pattern of the image. The image is formed based on the correction value calculated by the correction value calculating unit.

Abstract: A method for correcting the color of an image using a multi-touch capable touch-screen of a digital device used for photo or video equipment. The method turns away from the traditional three ways color correction systems or slide system used for conventional color correction control device by effectively using movements of hands and the line of them. Accordingly, the number of controls for color correction of images may be reduced.

Abstract: An image processing apparatus includes: an image processing unit that executes image processing on an input image; a point light source detection unit that detects a point light source included in the input image; a scene determination unit that determines whether or not the input image shows a vivid scene based on a detection result of the point light source detection unit and an image signal of the input image; and a control unit that controls the image processing unit to change image processing for the input image in accordance with a determination result of the scene determination unit.

Abstract: A method for color grading input video data for display on a target display comprises obtaining target display metadata indicative of a capability of the target display, obtaining input video data metadata indicative of image characteristics of the input video data, automatically determining initial values for parameters of a parameterized sigmoidal transfer function, at least one of the initial values based at least in part on at least one of the target display metadata and the input video data metadata and mapping the input video data to color-graded video data according to the parameterized transfer function specified using the initial values.

Abstract: An image processing device processes image data, which expresses an image and is edited to image data including, in correspondence with each pixel of the image, a pixel value field that holds a pixel value of the pixel and an attribute value field that holds an attribute value. The image processing device includes a first and a second image processing module, and a connection module that is connected to the first and second image processing modules, and moves the image data from one image processing module to the other image processing module. At least one of the image processing modules has a first function to output an image processing result for a pixel value of the input image data as an output pixel value, and a second function to output an image processing result for a pixel value of the input image data as an output attribute value.

Abstract: An information processing apparatus including a read image obtainer and a setting value calculator implemented by circuitry. The read image obtainer obtains a scanned determination image, including a plurality of different dot patterns output by an image forming apparatus on a recording medium. The setting value calculator, for each of the different dot patterns of the obtained scanned determination image, determines densities of different colors of the respective dot pattern and a total number of pixels influencing the density of each coefficient of a dot gain correction filter, with respect to each target pixel. The setting value calculator further configured calculates the coefficients of the dot gain correction filter based on the determined densities of the different colors of the different dot patterns and the total number of pixels, determined for each coefficient of the dot gain correction filter and for each of the different dot patterns.