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| Number | Title | Issue Date |
| 8098336 | System and method for using partial interpolation to undertake 3D gamma adjustment of microdisplay having dynamic iris control In a microdisplay TV with dynamic iris control, interpolation is used to undertake 3D gamma adjustment of the display for intermediate brightness levels. ... | 01/17/2012 |
| 7659945 | Color reproduction method and system, and video display method and device using the same A color reproduction correcting system and method, and a video display device and method can reproduce original color by considering signal source and display device. Each signal source information and each display device information can be stored. The signal source... | 02/09/2010 |
| 7605871 | Video signal processing apparatus and video signal processing method Based on a first table in which a value of an input luminance signal is corresponded to a value of an output luminance signal acquired by performing nonlinear correction processing on the input luminance signal, there is created a second table in which a value of th... | 10/20/2009 |
| 7414673 | Method and apparatus for correcting nonlinear color mixing errors The present invention discloses a method and an apparatus for correcting color mixing errors, which lets a color display device adopt a virtual material quantity concept and use at least one set of predetermined virtual primary colors to analyze mixed color signal v... | 08/19/2008 |
| 7391480 | Image processing apparatus and image processing method for performing gamma correction An image processing apparatus carrying out a gamma correction for input data includes polygonal line approximating apparatus for carrying out the gamma correction by a polygonal line approximation, a look-up table partially storing gamma correction data correspondin... | 06/24/2008 |
| 7369183 | Image display apparatus The present invention provides a technique for performing gamma correction processing when there are a plurality of characteristic areas, each of which is characterized by the high frequency in a luminance histogram to improve the impression of contrast. According t... | 05/06/2008 |
| 7359086 | Graphic-interface, anti-clipping, color-image correction Computer-based, anti-clipping, pre-printing, color-image correction via virtual color-parameter controllers that are provided within the graphic user interface of a print driver. Parameters accommodated include Red, Green and Blue offset, Lightness offset, Gamma and... | 04/15/2008 |
| 7330286 | Apparatus, method and computer program product for providing output image adjustment for image files A CPU of a color printer performs gamma correction and a matrix operation M on an RGB color space image data derived by a matrix operation S. Using gamma correction value settings, the CPU performs gamma conversion of image data. Matrix operation M converts the RGB ... | 02/12/2008 |
| 7327876 | Image processing device An image processing device includes: a color coordinate conversion device which converts color coordinates of a color signal which has been obtained by color separation; and a two dimensional look up table which is used for correcting a chromaticity signal which has... | 02/05/2008 |
| 7324164 | Display apparatus and control method thereof A display apparatus having a display to display a picture, including an input unit, a data operator, a storage unit to store data about a gamma curve to be applied corresponding to an average input brightness of an input video signal, an auto-adjuster to adjust a po... | 01/29/2008 |
| 7292370 | Image processing device and method In order to achieve to adjust saturation of an image without leading to a deterioration in image quality, there is provided an image processing device and method in which a conversion data has a conversion characteristic which suppresses a change in saturation in a ... | 11/06/2007 |
| 7289663 | Producing an extended color gamut luminance-chrominance digital image from a captured image A method for producing an extended color gamut luminance-chrominance digital image from a captured digital image includes determining an estimate of the colors of the captured digital image of an original scene and further processing to produce an extended range out... | 10/30/2007 |
| 7265795 | Video signal processing circuit, video display apparatus, and video display method Embodiments of the invention provide a video display technique with which a stable video with a high contrast can be obtained according to brightness of a screen. In one embodiment, a video signal processing system for a video display apparatus which performs displa... | 09/04/2007 |
| 7259798 | Image compensation apparatus The present invention provides an image compensation apparatus, by which a hardware structure is simplified and by which resolution of a remanded color gamut is enhanced when an inputted digital image is compensated to fit the characteristics of a display device. Th... | 08/21/2007 |
| 7257271 | Noise reduction in color digital images using pyramid decomposition A method of removing noise from a color digital image, including receiving an original color digital image including a plurality of pixels represented in a primary-color space; producing at least one residual digital image and at least one base digital image from th... | 08/14/2007 |
| 7253845 | Color non-uniformity correction for LCOS A method (400) and a system (100) for providing video signals to video displays includes the steps of receiving at least one input video signal (150), dithering the non-uniformity color correction (445), applying the non-uniformity color ... | 08/07/2007 |
| 7250967 | Apparatus for modifying reproduction frequency band of video signal False signals and noise are reduced in a device such as a digital still camera having a solid-state electronic image sensing device. To achieve this, a luminance signal generating circuit generates luminance signals Y1 and Y3 having different reproduct... | 07/31/2007 |
| 7233705 | Method and apparatus for reducing inaccuracies when processing color data with a tone map A method and apparatus that reduces the inaccuracies in the tone map operation in the dark areas of an image. ... | 06/19/2007 |
| 7215813 | Method and apparatus for color correction A graphical user interface for performing color correction and methods for implementing the color correction are disclosed. The graphical user interface allows a user to adjust the colorspace of the pixels in the image. In one embodiment, a color adjustment pad allo... | 05/08/2007 |
| 7215449 | Anti-clipping color-image correction Computer-based, anti-clipping, pre-printing, color-image correction via virtual color-parameter controllers that are provided within the graphic user interface of a print drier. Parameters accommodated include Red, Green and Blue offset, Lightness offset, Gamma and ... | 05/08/2007 |
| 7209146 | Methods and apparatuses for the automated display of visual effects Methods and apparatuses for the generation of visual effects according to the elapsed time for real time display. One embodiment of the present invention provides an automated mechanism for displaying visual effects (e.g., fade to or from a target color) through adj... | 04/24/2007 |
| 7209183 | Method of automatically setting image quality Provided is a method of automatically setting image quality, which maintains a brightness and a contrast of an image regardless of a status of an input signal. The method includes: (a) setting a variable range of brightness and a variable range of contrast; (b) conv... | 04/24/2007 |
| 7199839 | Color signal processing device for multi-primary color display and method thereof A color signal processing apparatus for a multi-primary display with a simple circuit construction and a color signal processing method achieves a display white by more than four display primaries. The color signal processing apparatus has a tristimulus value calcul... | 04/03/2007 |
| 7197182 | Color-matched digital playback Perceptually correctly rendering a color-matched image of a digital imagery including receiving and storing a digital data set representing the digital imagery; computing a three-dimensional lookup table (3-D LUT) using a color transform stack; simulating a real-tim... | 03/27/2007 |
| 7190411 | Gamma calibration An image processing system includes a frame store, a processing means and a monitor. The frame store stores a sequence of images from a film or video clip that will eventually be transferred to film for viewing in a theater. The image sequence is processed and possi... | 03/13/2007 |
| 7190391 | Image processing A method of scanning cinematographic film to produce digital images corresponding to images on frames of the film is provided, comprising the steps of: scanning the film and storing the digital images obtained; def... | 03/13/2007 |
| 7167214 | Signal processing unit and liquid crystal display device A signal processing unit in a liquid crystal display device, etc., includes a brightness component appearance frequency measuring unit that measures an appearance frequency of each brightness component in a video signal; a parameter outputting unit that outputs a di... | 01/23/2007 |
| 7164511 | Distinguishing positive and negative films system and method A system and method for scanning a photographic film using a scanner automatedly identifies the film as either a positive or negative and controls the scanner settings to perform the scan accordingly. The method includes performing a pre-scan of the film, sampling a... | 01/16/2007 |
| 7154562 | Methods and circuits for implementing programmable gamma correction A method of gamma correction includes selecting lower and upper reference curves corresponding to selected reference gamma values. A gamma correction curve is generated from a corresponding gamma correction value and cross-correlated with the upper and lower referen... | 12/26/2006 |
| 7148631 | Drive device and drive method of light emitting display panel After a command signal corresponding to a gradation whose light emission is controlled is outputted from a controller IC 4, based on this, a combination of respectively different intensity conversion data are extracted from a linear data table 11 and a... | 12/12/2006 |
| 7145608 | Method of using locality statistics characteristic to enhance gamma corrections This specification discloses a method of using locality statistics characteristic to enhance gamma corrections. Using the property that the color values of nearby digital image pixels are close to one another, the cache queue operation model is employed to partly re... | 12/05/2006 |
| 7142245 | Conversion of frame rate according to image date A projector is provided to suppress the degradation of the image quality of movies that are displayed on an image display device. The projector is configured to have a DVD playback function. Accordingly, when movie data that was read out from a DVD includes a movie ... | 11/28/2006 |
| 7119855 | Image display with display-switching function In an image display having a image generator for forming and displaying an optical image in accordance with inputted image signal and a controller for controlling the image generator, a controller (5) has a display-condition switching controller (510, 511 | 10/10/2006 |
| 7102698 | Method and apparatus for controlling brightness of image processing device A method and apparatus for controlling the brightness of an image processing device to improve a brightness characteristic of an image signal, by reducing a pedestal voltage range and correspondingly expanding a brightness control voltage range in a highlight mode. ... | 09/05/2006 |
| 7102696 | Method of effecting various anti compensation processes on segmented gray level of input image on plasma display panel A process of effecting various anti compensation processes on input image on a plasma display panel comprises the steps of a) performing a gamma (i.e., γ equal to 0.45) compensation process on a video signal received by the PDP with respect to a γ; b) dividing the... | 09/05/2006 |
| 7081902 | Apparatus, system, and method for gamma correction of smoothed primitives A graphics processor performed gamma correction of the coverage values of pixels. In one embodiment, a gamma correction factor is written into a run-time loadable lookup table of the graphics processor. The gamma corrected coverage values may be used in an anti-alia... | 07/25/2006 |
| 7072000 | Projection type color image display unit In a projection type color display unit having three optical shutters formed on substrates corresponding to three primary colors, a color separation circuit and a digitalizing circuit are provided on each substrate having the optical shutter, and signals correspondi... | 07/04/2006 |
| 7064740 | Backlit display with improved dynamic range A display is backlit by a source having spatially modulated luminance to attenuate illumination of dark areas of images and increase the dynamic range of the display. ... | 06/20/2006 |
| 7064773 | Display apparatus A display apparatus is constructed to make a plurality of light beams of mutually different colors incident to a display element and modulate the beams of the respective colors by the display element to form images of the respective colors. Purity of a predetermined... | 06/20/2006 |
| 7057653 | Apparatus capable of image capturing Apparatus for image capturing has preview function for monitor-outputting an image before capturing image to be recorded, image processing section including band correcting section for controlling frequency characteristic of color data constituting image data, gamma... | 06/06/2006 |
