| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 348649000 | Hue control | 35 |
| 20080218636 | APPARATUS AND METHOD FOR ADJUSTING INPUTTED COLOR CONCERNING TOTAL AND SPECIFIC COLORS - A specific color-adjusting stage adjusts data of an inputted color with respect to a specific color. A total color-adjusting stage adjusts the data of the inputted color with respect to a total color. The specific color-adjusting stage and the total color-adjusting stage are provided in parallel. A composing unit composes linearly an output of the specific color-adjusting stage and an output of the total color-adjusting stage. When a degree that the total color-adjusting stage adjusts the data of the inputted color increases, then a degree that the specific color-adjusting stage adjusts the data of the inputted color decreases, and vice versa. | 09-11-2008 |
| 20080239156 | Image pickup apparatus - An image pickup apparatus is equipped with an image pickup device in which pixels coated with different color filters are arranged. Further, the image pickup apparatus includes a separation unit that separates a video signal outputted from the pixels coated with the different color filters into three color image signals; an adjustment signal generation unit for generating a color balance adjustment signal and a hue adjustment signal from the separated three color image signals; and an adjustment unit for adjusting the video signal outputted from the pixels coated with the different color filters by using the color balance adjustment signal and hue adjustment signal generated by the adjustment signal generation unit. | 10-02-2008 |
| 20080246883 | IMAGE PROCESSING PROGRAM, IMAGE PROCESSING METHOD, AND IMAGE PROCESSOR - A parameter for determining a chrominance correction curve for use in correcting the chrominance component of each pixel is determined from one or more parameters for determining a luminance correction curve for use in correcting luminance applied to the entirety of one frame of motion picture data. The chrominance component of each pixel is corrected using the chrominance correction curve. | 10-09-2008 |
| 20080259216 | COLOR SIGNAL CONVERTING APPARATUS, VIDEO DISPLAY APPARATUS INCLUDING THE SAME, AND COLOR SIGNAL CONVERTING METHOD - According to one embodiment, a color signal converting apparatus includes: a minimum value detecting section detecting a minimum value signal having a smallest value among a plurality of input color signals; a difference extracting section extracting a difference between the minimum value signal detected by the minimum value detecting section and a reference value; a difference adding section adding the difference extracted by the difference extracting section to each of the plural color signals; and a saturation converting section converting saturation of each of the plural color signals to which the difference is added, according to a ratio of brightness of the plural input color signals and brightness of the plural color signals to which the difference is added by the difference adding section. | 10-23-2008 |
| 20080266459 | Multiple format video display - In one embodiment a video system comprises a connector selection module to receive a first video signal, a color correction module comprising logic to select a color correction routine for the first video signal based on at least one of a video format identifier associated with the first video signal, an input connector associated with the first video signal, or a metadata tag associated with a data file containing the first video signal, applying the color correction routine to the first video signal; and presenting the first video signal on a video display. | 10-30-2008 |
| 20080284915 | Method and apparatus for adjusting chroma and luma for a video signal - A system that adjusts chroma and luma values for a video signal is presented. During operation, the system receives a matrix of coefficients, which when applied to the chroma values and the luma values of a video signal produces substantially the same result as performing a sequence of discrete operations on the chroma values and the luma values, wherein the sequence of discrete operations includes one or more color-representation-conversion operations and one or more processing amplifier operations. For a given pixel of the video signal, the system performs a matrix-multiplication operation between a matrix representation of the chroma values and the luma values for the given pixel and the matrix of coefficients to produce a modified pixel. | 11-20-2008 |
| 20090046206 | VIDEO PROCESSING APPARATUS AND VIDEO PROCESSING METHOD - According to one embodiment, a hue signal and an actually measured saturation value are generated based on received first and second color signals and a saturation maximum value is generated based on a hue signal and received luminance signal. The first and second color signals are subjected to a correction process when the actually measured saturation value exceeds the saturation maximum value and the luminance signal and the first and second color signals that are subjected to the correction process are converted into R, G and B signals. | 02-19-2009 |
| 20090059079 | Image Processing Device, Image Processing Method, and Computer Program - An image processing device corrects a color of a specific area in a target image into an appropriate color. A representative brightness value represents the specific area in a first color space that has a brightness index value. Representative color component values represent the specific area in a second color space that has no brightness index value and a plurality of color component values. The color of the specific area is corrected based on the representative brightness and color component values. The brightness of the specific area is corrected by modifying the brightness index value in the first color space and the color component values in the second color space. First and second brightness correction degrees are set on the basis of the representative brightness value. | 03-05-2009 |
| 20090091660 | METHOD AND APPARATUS FOR PROCESSING COLOR COMPONENTS OF PIXEL THROUGH ADDING WHITE LIGHT ADAPTIVELY - A method and an apparatus of processing a plurality of color components of a pixel are provided. The method includes: finding a maximum value of the color components; determining a scaling factor and an adjusting value according to the maximum value; and adjusting each of the color components according to a multiplication utilizing the scaling factor and an addition utilizing the adjusting value. The apparatus includes: a maximum value determining module, for finding a maximum value of the color components; a first adjustment control module, coupled to the maximum value determining module, for determining a scaling factor and an adjusting value according to the maximum value; and an adjusting module, coupled to the first adjustment control module, for adjusting each of the color components according to a multiplication utilizing the scaling factor and an addition utilizing the adjusting value. | 04-09-2009 |
| 20090167955 | Apparatus and Method for Decoding Extended Color Space Data - In one embodiment, an image decoding system for a YC | 07-02-2009 |
| 20090180029 | System for adjusting color image quality and method thereof - A system for adjusting color image quality includes converting color video signal sources into component video signals including a luminance signal and chrominance signals. A signal axis rotation circuit performs coordination transformation on the chrominance signals in accordance with a hue calibration parameter; and a multiplier multiplies the coordinate-transformed chrominance signals with a chroma calibration parameter to obtain output chrominance signals. The output chrominance signals and the luminance signal together form a component chrominance signal, which is applied to and output by a chrominance signal inverse conversion unit. | 07-16-2009 |
| 20090290068 | Signal Processing Device And Projection Display Apparatus - A signal processing device including: a color coordinate adjuster performing color coordinate adjustment processing for adjusting color coordinates of an image input signal according to a color reproduction range of a display device; a brightness adjuster performing brightness adjustment processing for adjusting a brightness component of the image input signal; and a coefficient controller controlling a color coordinate adjustment coefficient and a brightness adjustment coefficient. The coefficient controller controls the brightness adjustment coefficient so as to decrease the brightness component of the image input signal, when saturation of a pixel having a first hue is high, controls the brightness adjustment coefficient so as to increase the brightness component of the image input signal, when saturation of a pixel having a second hue is high, and decreases the brightness adjustment coefficient when increasing the color coordinate adjustment coefficient. | 11-26-2009 |
| 20100007799 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM - An image processing apparatus acquires a time interval which is set in a display apparatus and at which the display screen is updated, determines a profile used for a color correction process based on the acquired time interval, and performs the color correction process using the determined profile to an input video signal. | 01-14-2010 |
| 20100060795 | Color interpolation device and color interpolation method - A color interpolation device may include a gradient grade calculation block calculating horizontal derivatives and vertical derivatives using composite video signals output from a current pixel and adjacent pixels and calculating a gradient grade using a linear composition of the horizontal derivatives and vertical derivatives, a horizontal/vertical YUV calculation block calculating horizontal YUV components and vertical YUV components of the current pixel from the composite video signals, and a YUV/RGB conversion circuit mixing the horizontal YUV components and the vertical YUV components based on the gradient grade and converting mixed YUV components generated as a result of the mixing to RGB components. | 03-11-2010 |
| 20100085487 | Joint enhancement of lightness, color and contrast of images and video - In some embodiments, color and contrast enhancement video processing may be done in one shot instead of adjusting one of color and contrast enhancement, then the other, and then going back to the first one to readjust because of the second adjustment. In some embodiments, global lightness adjustment, local contrast enhancement, and saturation enhancement may be done at the same time and in parallel. Lightness adjustment improves visibility of details for generally dark or generally light images without changing intended lighting conditions in the original shot, and is used to enhance the range of color/saturation enhancement. Local contrast enhancement done in parallel improves visual definition of objects and textures and thus local contrast and perceived sharpness. | 04-08-2010 |
| 20100208141 | IMAGE PROCESSING DEVICE INCLUDING DEFINITION ENHANCEMENT - Image processing devices include a color extractor circuit configured to extract color information from input image data, a color shifter circuit configured to color shift the input image data according to the extracted color information and a definition enhancement circuit configured to detect a color difference from the color-shifted image data and to unsharp mask filter the color-shifted image data according to the detected color difference. | 08-19-2010 |
| 20100220237 | METHOD AND SYSTEM FOR COLOR CORRECTING DISPLAYS WITH DIFFERENT COLOR GAMUTS - There are provided a method and system for color correcting displays with different color gamuts. The method includes performing color correction on source picture content, using at least one of a non-reference type display having a non-reference color gamut and a reference type display having a reference color gamut. The performing step includes mastering the source picture content to provide mastered color corrected picture content for display on the reference type displays having a reference color gamut. The performing step further includes generating metadata for a subsequent inverse color gamut mapping that color transforms the mastered color corrected picture content for display on non-reference type displays having a non-reference color gamut. The subsequent inverse color gamut mapping is an inverse operation of a color gamut mapping applied during the color correction to obtain the mastered color corrected picture content for display on the reference type displays having the reference color gamut. The source picture content is mastered only for the reference type displays having the reference color gamut. | 09-02-2010 |
| 20100253852 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND COMPUTER PROGRAM - An image processing apparatus includes an extraction unit configured to extract a plurality of luminance low frequency components different in frequency band from a luminance component of image data, and a color adjustment unit configured to execute color adjustment of the image data using the image data or the luminance component of the image data and the plurality of luminance low frequency components, wherein, when an effect of color adjustment based on the luminance low frequency component having a relatively low frequency is larger than an effect of color adjustment based on the luminance low frequency component having a relatively high frequency among the plurality of luminance low frequency components, the color adjustment unit reduces the effect of color adjustment based on the luminance low frequency component having the relatively low frequency. | 10-07-2010 |
| 20100289962 | IMAGE DISPLAY APPARATUS AND METHOD OF COMPENSATING FOR WHITE BALANCE - An image display apparatus and a method of compensating for white balance are disclosed. The method of compensating for white balance of an image display apparatus includes reading a picture status mode (PSM) set in the image display apparatus, measuring the light amounts of RGB color signals from an external light source of the image display apparatus and detecting a color temperature of the external light source, calculating a difference between the detected color temperature of the external light source and a color temperature of the white balance of the set PSM, performing white balance gain compensation for correcting the color temperature of an input image according to the PSM using the calculated difference between the color temperatures, and displaying an image of which the white balance gain is compensated for. Accordingly, it is possible to correct a difference between color temperatures according to a PSM of an input image and an external light source in TV viewing conditions of various environments and maintain sharp white balance of an output image. | 11-18-2010 |
| 20110001881 | IMAGE PROJECTION APPARATUS AND METHOD OF CONTROLLING THE SAME - An image projection apparatus that can perform a wall color correction and an ambient light correction obtains a wall color correction parameter by projecting a calibration image for the wall color correction and then obtains an ambient light correction parameter by projecting a calibration image for the ambient light correction, which has been subjected to the wall color correction using the wall color correction parameter. | 01-06-2011 |
| 20110149166 | COLOR CORRECTION TO COMPENSATE FOR DISPLAYS' LUMINANCE AND CHROMINANCE TRANSFER CHARACTERISTICS - Displays are provided with circuitry performing color correction to compensate for the displays' luminance and chrominance transfer characteristics. Some techniques are suitable for RGBW displays and for subpixel-rendered displays. Some displays include an external light source (e.g. a backlight unit in LCDs), and the color correction is coordinated with dynamic control of the light source. | 06-23-2011 |
| 20110310303 | PROJECTION APPARATUS PROVIDING REDUCED SPECKLE ARTIFACTS - A projection apparatus for producing color images having reduced speckle artifacts comprising: at least three narrow band light sources having first, second and third visible wavelength bands; a digital image source providing color digital image data; at least one spatial light modulator for forming a color image using light responsive to the color digital image data; a projection display surface including a reflective layer that reflects incident illumination in the first, second, and third wavelength bands; and a fluorescent agent that absorbs a fraction of the incident light in the first visible wavelength bands and emits light in a corresponding first emissive visible wavelength band; and a projection lens that projects the color image onto the projection display surface; wherein return light from the projection display surface contains light in both the first incident visible wavelength band and the first emissive visible wavelength band, thereby reducing speckle artifacts. | 12-22-2011 |
| 20120038829 | DISPLAY APPARATUS - A display apparatus includes: input port for receiving input of video signal representing display color in red, green, and blue hues; display portion including pixel with red, green, blue and yellow sub-pixels for performing plasma emission in red, green, blue and yellow hues, respectively; and converter for converting video signal and outputting conversion signal for causing sub-pixels to emit light, respectively, such that display color corresponding to display color represented by video signal is displayed on display portion, wherein conversion signal output by converter includes red and green conversion signals for causing red and green sub-pixels to perform plasma emission at lower luminosity value than luminosity value used in the video signal, respectively, and yellow conversion signal for causing yellow sub-pixel to perform plasma emission, and yellow sub-pixel performs plasma emission with shorter afterglow time than red and green sub-pixels. | 02-16-2012 |
| 20120154682 | DISPLAY APPARATUS AND DISPLAY APPARATUS DRIVING METHOD - A display apparatus includes: a display panel that includes display elements having a current-driven light-emitting portion, in which the display elements are arranged in a two-dimensional matrix in a first direction and a second direction, and that displays an image on the basis of a video signal; and a luminance correcting unit that corrects the luminance of the display elements when displaying an image on the display panel by correcting a gradation value of an input signal and outputting the corrected input signal as the video signal. The luminance correcting unit includes a reference operating time calculator, an accumulated reference operating time storage, a reference curve storage, a gradation correction value holder, and a video signal generator. | 06-21-2012 |
| 20120154683 | Display apparatus and display apparatus driving method - A display apparatus includes: a display panel that includes display elements having a current-driven light-emitting portion, in which the display elements are arranged in a two-dimensional matrix in a first direction and a second direction, and that displays an image on the basis of a video signal; and a luminance correcting unit that corrects the luminance of the display elements when displaying an image on the display panel by correcting a gradation value of an input signal and outputting the corrected input signal as the video signal. The luminance correcting unit includes a reference operating time calculator, an accumulated reference operating time storage, a reference curve storage, a black-level shift amount holder, and a video signal generator. | 06-21-2012 |
| 20120206655 | Color balance - Some embodiments provide a program that performs a color balance operation. The program identifies an image that includes several pixels. Each pixel includes a luma component value and chroma component values. The program analyzes the luma component values of the pixels in the image to identify several luma ranges. The program determines, for each luma range in the several luma ranges, a set of transforms for modifying chroma component values of pixels in the image in order to remove a color cast from the image. The program applies the sets of transforms to the image to remove the color casts from the image. | 08-16-2012 |
| 20130100351 | METHOD AND APPARATUS FOR REDUCED COMPLEXITY VIDEO PROCESSING VIA SPECIAL CHROMA HANDLING - A method and apparatus for reduced complexity video and image processing with special chroma handling are disclosed. Frame-type decisions are made on a video stream made up of a sequence of frames. A first subset of the frames are selected to be monochrome and generated without chroma data. A second subset of the frames are selected to be in color and generated with chroma components. In one embodiment, the first subset of frames includes odd frames and the second subset of frames includes even frames in the video stream. Under higher video frame rates, the lack of color in every other frame is not visible to the end viewer. Accordingly, subsequent processing of the output video stream permits luma-only processing of many frames in the video stream, extensively reducing the amount of computation. | 04-25-2013 |
| 20130194506 | Method, Apparatus and Computer Program Product for Providing Improved Gray Mapping - An apparatus for providing improved color intensity mapping may include a processor. The processor may be configured to divide color intensity value byte data into high priority portions and low priority portions distributed as constellation points in a constellation matrix and to provide separation between each of the constellation points by assigning a unique mapping code to a plurality of the constellation points. | 08-01-2013 |
| 20130201402 | DISPLAY DEVICE AND COLOR ADJUSTMENT METHOD THEREOF, AND METHOD FOR DISPLAYING VIDEO SIGNAL - A device for image processing includes: a video signal receiver, for receiving at least one video signal; a color engine, comprising a local adjusting unit, for dividing pixels of an image frame of the at least one video signal into multiple pixel groups according to luminance factors of the pixels in HSI color space and adjusting the luminance factors of a specific pixel group of the pixel groups having luminance factors in a predetermined range that is a part of a full range of luminance factor by moving the pixels of the specific pixel group from a region to another region of the HSI color space without changing color axes of the HSI color space. | 08-08-2013 |
| 20130265498 | PROJECTOR - A projector includes a light modulation part modulating light generated by a light source part, a video signal processing part processing a video signal to be input, and a projection optical system projecting the light modulated by the light modulation part onto an external projection target to obtain a projected video image. The video signal processing part includes a blue light effect alleviating part alleviating effects of blue light on retinas. In a case where only a ratio of a blue signal included in the video signal is high, the blue light effect alleviating part performs control to reduce the brightness of the projected video image as a whole by reducing signal values of the blue signal, a green signal, and a red signal. | 10-10-2013 |
| 20130314604 | COMPUTER-READABLE STORAGE MEDIUM STORING IMAGE PROCESSING PROGRAM, IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD - A computer-readable storage medium storing an image processing program that causes a computer to execute a process includes, synthesizing, for each of frames included in a video image and to be processed, a synthesis image with an image of a synthesis target region existing in the frame by repeatedly executing a calculation using a Poisson's equation on the basis of the image of synthesis target region existing in the frame to be processed and the synthesis image to be replaced with the image of the synthesis target region, and thereby calculating, from an initial value image, a synthesis result image corresponding to a result obtained by synthesizing the synthesis image with the synthesis target region so as to sequentially execute a synthesis process on the frames of the video image; and setting, for each of the frames to be processed, initial values by setting, as the initial value image. | 11-28-2013 |
| 20140204274 | DISPLAY DEVICE AND COLOR ADJUSTMENT METHOD THEREOF, AND METHOD FOR DISPLAYING VIDEO SIGNAL - A device for image processing includes a video signal receiver, for receiving at least one video signal, wherein an image frame of the at least one video signal includes: a plurality of pixel groups; a color engine; and an output stage, coupled to the color engine, for outputting the adjusted at least one video signal. The color engine includes: a local adjusting unit, configured to locally adjust at least one of color hue, luminance factor and saturation of a specific pixel group of the pixel groups without adjusting any other pixel group of the pixel groups, wherein the specific pixel group has color hue in a predetermined range that is a part of a full range of color hue; and a global adjusting unit, configured to globally adjust at least one of color hue, luminance factor and saturation of each of the pixels of the image frame. | 07-24-2014 |
| 348651000 | Digital | 1 |
| 20120026405 | System and Method of Creating or Approving Multiple Video Streams - In an embodiment, a system generates multiple video streams. The system includes a color grading device and an appearance mapping device. The appearance mapping device operates on the data generated by the color grading device, and both the output of the color grading device and the output of the appearance mapping device may be displayed (and edited) simultaneously. In this manner, the efficiency of the editing process is improved. | 02-02-2012 |
| 348652000 | Fleshtone corrector (e.g., fixed) | 2 |
| 20100315559 | CONTOUR FREE POINT OPERATION FOR VIDEO SKIN TONE CORRECTION - A method for color tone correction is disclosed. The method generally includes the steps of (A) generating a plurality of first intermediate components by scaling a plurality of first color components towards a first ideal color, wherein the first color components (i) are for a first plurality of pixels in an input video signal and (ii) fall inside a first region of a color space, (B) generating a plurality of first corrected components by adjusting the first intermediate components such that a first mapping of the first color components to the first corrected components is both (i) continuous in the color space and (ii) non-overlapping in the color space and (C) generating an output video signal by combining the first corrected components with a plurality of unaltered color components, wherein the unaltered color components (i) are for a second plurality of the pixels and (ii) fall outside the first region. | 12-16-2010 |
| 20110134328 | VIDEO PROCESSING APPARATUS AND VIDEO PROCESSING METHOD - A video processing apparatus includes: a skin color region detection device that detects a skin color region in one frame from hue/saturation/brightness signals; a skin color area calculation device that calculates the skin color area of one frame based on the skin color region detection result; a gamma correction control device that generates a gamma correction control signal for a luminance signal based on the skin color area calculation result; a gamma correction device that performs gamma correction according to the gamma correction control signal for the luminance signal; a color space transform device that transforms the gamma-corrected luminance signal and color-difference signals to the hue/saturation/brightness signals; a skin color correction device that corrects only the skin color based on the transformed signals; a color space inverse transform device that inverse-transforms the corrected hue/saturation/brightness signals to color signals; and a video display device that displays the color signals as video. | 06-09-2011 |
