312 results about "Color compensation" patented technology

A tandem white OLED includes an anode; a cathode; at least one broadband electroluminescent unit disposed between the anode and the cathode, wherein the broadband electroluminescent unit includes at least one light-emitting layer and produces at least one color component having an intensity less than desired; at least one color-compensating electroluminescent unit disposed between the anode and the cathode, wherein the color-compensating electroluminescent unit is selected to produce the at least one color component and to increase the color component intensity; and an intermediate connector disposed between each adjacent electroluminescent unit, wherein the intermediate connector has no direct connection to an external power source.

Provided are an image encoding method and apparatus and an image decoding method and apparatus that are capable of canceling a correlation remaining in a residual image by predicting the residual image by using residual pixel values of restored neighboring pixels of a current block and then encoding only the difference between the residual image and a predicted image of the residual image, where the residual image is obtained using an inter color compensation algorithm that predicts one of a plurality of color component images constituting an image by using one of the remnants of the color component images.

A color compensation apparatus for use in a display device includes a first video signal converter, a color gamut mapping and expansion unit, and a second video signal converter. The first video signal converter converts RGB values of a first video signal into first color stimulus values, and the color gamut mapping expansion unit performs a color gamut mapping and expansion process on the first color stimulus values in order to obtain second color stimulus values. The second video signal converter then converts the second color stimulus values into a second video signal based on property information of the display device. The second signal converter includes a plurality of modeling units for converting the second color stimulus values, which are divided for a plurality of channels, into image data of a second video signal using a plurality of modeling functions, respectively.

The embodiment of the present invention discloses a method for processing an inputted high dynamic range image and a display device and relates to the technical field of the display. The method and the display device are used for solving the problems of loss of image details, reduced contrast, color distortion and the like caused by the display of an HDR image or a video signal on a medium according to a method of the prior art. The method comprises a step of searching a tone mapping contrast coefficient table in each scene for a brightness value of each pixel point to obtain a tone mapping contrast coefficient of each pixel point in each scene, a step of weighting the tone mapping contrast coefficient of a same pixel point in each scene, and a step of taking the weighted tone mapping contrast coefficient as a color compensation coefficient, carrying out color compensation on each pixel point, and carrying out output.

A shifting amount of color compensation amount is calculated based on a shifting amount of color obtained from a shifting amount of color storage unit for each image forming unit, and shifting amount of color compensation in the pixel unit is performed by executing address conversion using the calculation result. A feature of an image to be processed is detected, and color density conversion compensation for performing shifting amount of color compensation in less than the pixel unit is performed according to the detected feature. Furthermore, half-tone processing or exceptional processing is selectively executed according to the detected feature.

The invention discloses a display device and an image compensation method thereof. The display device comprises an ambient light detector, a display image content analyzer and an image compensation processor, wherein the ambient light detector detects the ambient light brightness and generates the ambient light brightness grade according to the ambient light brightness; the display image content analyzer receives and analyzes the display image data and generates the display image data brightness grade according to the brightness of the display image data; the image compensation processor generates an image brightness enhancement value, an image color compensation value and an image edge enhancement degree according to the ambient light brightness grade and the display image data brightness grade; and the image compensation processor performs image processing on the display image data according to the image brightness enhancement value, the image color compensation value and the image edge enhancement degree to generate the image data after compensation.

A liquid crystal panel has a pair of substrates disposed almost parallel to each other. On each of the substrates, an electrode and an alignment film are formed. A liquid crystal layer having a negative dielectric anisotropy is sandwiched by the substrates. In the absence of voltage applied across the electrodes, the molecules of the liquid crystal layer align almost perpendicular to the substrates. In this liquid crystal layer, a dichroic dye, preferably a blue dichroic dye, is added to absorb the yellow component of an incident light. Instead of adding the dye into the liquid crystal layer, a color compensation layer containing the dye is formed on or adjacent to at least one of the substrates. The yellow component of an incident light to the liquid crystal panel is absorbed by the color compensation layer. As a result, the liquid crystal panel and the liquid crystal display using the panel do not show yellow coloring when the panel is observed from oblique directions.

Disclosed are a color compensation multi-layered member for a display apparatus, an optical filter for a display apparatus having the same, and a display apparatus having the same. The color compensation multi-layered member for a display apparatus includes a thin layer having a thickness of about 780 nm or less and a first refractive index; a first thick layer having a greater thickness than the thin layer, being formed on a surface of the thin layer, and having a second refractive index; and a second thick layer having a greater thickness than the thin layer, being formed on another surface of the thin layer, and having a third refractive index.

The invention discloses an image brightness and color balancing method and system for video stitching. The method comprises the steps of S1, acquiring two adjacent images to be stitched, calculating an image transformation matrix according to the two adjacent images to be stitched and setting an iteration suspensive condition; S2, determining the overlapping part of the two adjacent images to be stitched according to the image transformation matrix, and determining the brightness and color compensation coefficients of the images according to the brightness and color difference of the images with similar textures in the overlapping part; S3, adjusting the brightness and color of the two adjacent images to be stitched to obtain an adjusted image according to the brightness and color compensation coefficients of the images, and recalculating the image transformation matrix according to the adjusted image; S4, repeating S2 and S3 in sequence till the iteration suspensive condition is met, obtaining a final image transformation matrix and the brightness and color compensation coefficients of the final image, and saving the current original images to be stitched as reference images. By the adoption of the method and system, brightness and color jump occurring during video stitching can be eliminated.

The invention belongs to the technical field of financial security authentic identification and identification, and discloses an anti-counterfeiting bill authentic identification system and method based on multispectral image. The method comprises the steps: carrying out the image collection of an anti-counterfeiting bill through an image collection module, and obtaining anti-counterfeiting bill images under different spectrums; preprocessing the acquired bill images, wherein preprocessing includes color compensation, geometric correction, filtering and noise reduction; extracting anti-counterfeiting features from the infrared and ultraviolet images, and fusing multiple features to judge the authenticity of the anti-counterfeiting bill; and detecting a text area on the white light image, and recognizing bill face text information, wherein the bill face text information comprises bill types, affiliated organizations, bill numbers, accounts and money amounts. According to the invention,bill authentic identification is carried out by using a multi-mode multi-feature fusion mode, so that the authentic identification accuracy and reliability are improved; and the detail information ofthe anti-counterfeiting mark can be captured, and accurate matching of the feature points is achieved. Moreover, the matching speed is high, and the requirement of real-time performance of online detection can be met.

A filter 100 for a display device includes a transparent substrate 110; a near infrared ray blocking layer 120; and electromagnetic shielding layer 130; an external light blocking layer 140; and a color compensation layer 150. The near infrared ray blocking layer 120 is formed on the transparent substrate 110 and includes a metal thin film and a metal oxide thin film which are alternately layered, each of the metal thin film and the metal oxide thin film being layered one or more times. The electromagnetic shielding layer 130 is formed on the near infrared ray blocking layer 120 and includes a metal mesh pattern. The external light blocking layer 140 includes an external light blocking pattern 144, the external light blocking pattern including a plurality of external light blocking parts with a wedge shape which are filled with a light absorbing material and a conductive material. The color compensation layer 150 is formed on the external light blocking layer 140 and includes a polymer resin and at least two kinds of colorants selectively absorbing lights. The filter 100 has a transmittance of 5% or less at an 850 nm wavelength. The filter 100 has excellent performance in blocking near infrared rays and electromagnetic waves and high transmittance to visible light.

A system for, and method of, color-compensating a video signal. In one embodiment, the system includes: (1) a first transformation circuit configured to receive and transform a gamma-encoded input video signal into a gamma-encoded RGB video signal R′G′B′ and (2) a second transformation circuit coupled to the first transformation circuit and configured to receive and linearly transform the gamma-encoded RGB video signal R′G′B′ into a chrominance-compensated, gamma-encoded rgb video signal r′g′b′.

A light emitting system comprises an LED-based light emitting device and a controller for controlling operation of the device. The device comprises at least two LEDs that are operable to generate light of different colors that contribute to the emission product of the device. The controller is operable to control light emission from the LEDs in response to the measured intensity of the first and second color light contributions in the emission product. To measure the individual light contributions the controller is operable to interrupt, or at least change, light emission from one LED for a selected time period and during this time period to measure the intensity of the emission product of the device. The intensity of light of the first and second color can be determined by comparing the measured intensity with the measured intensity when the light emission from the other LED is interrupted or changed.

Compensation of lateral-color chromatic-aberration effects in a digital color-graphics projection display is achieved by providing projection optics for the projection display which is nontelecentric to a certain degree to establish an angled geometry for gathering light off axis for projection by the projection optics and by providing a plurality of component-primary-color object planes for object digital graphics of different primary colors to be projectively displayed through the projection optics. At least two of the component-primary-color object planes are located at different effective axial distances from the projection optics. The effective axial distances of the object planes from the projection optics are respectively keyed to the angled nature of the off-axis light gathering of the projection optics and to the lateral-color chromatic-aberration differences in lateral magnification by the projection optics at different primary colors so that such color-dependent differences in lateral magnification tend to be compensated.

An image processing apparatus and method using a depth image are provided. The image processing apparatus may include a region determination unit to determine a foreground region and a background region in a color image using a depth image, and a color compensation unit to compensate a color with respect to the foreground region and the background region.

The present invention discloses a liquid crystal display with function of static color compensation and method thereof, the purpose of the present invention is achieved by utilizing LC Off technique and light sensing technique. The liquid crystal display comprises: a liquid crystal plate; a backlight, disposed on at least one side of the liquid crystal plate; at least one light sensor, disposed adjacent to the liquid crystal plate, and the light sensor has a sensing plane which faces to the backlight; and a timing controller, which receives brightness value measured from the light sensor when LC Off and computes the data to monitor the brightness and chromaticity of the backlight.

The invention provides a method, a device and equipment for color compensation. The method comprises the following steps of obtaining existing current information of a light emitting source in a screen; determining compensation data of a component R, compensation data of a component B and compensation data of a component G of a pixel corresponding to the existing current information; according to the determined compensation data of the component R, component G and component B, respectively adjusting the component R, component G and component B, so as to compensate the display color of the screen. The method has the advantages that the display effect of the screen at different current is improved, and the defect of deviation of screen color along with the current change of the light emitting source is overcome.

The invention provides tools and techniques for clone brushing pixels in an image while accounting for inconsistencies in apparent depth and orientation within the image. The techniques do not require any depth information to be present in the image, and the data structure of the image is preserved. The techniques allow for color compensation between source and destination regions. A snapping technique is also provided to facilitate increased accuracy in selecting source and destination positions.

A digital light processing (DLP) projector and a color compensation method of a bulb of the DLP projector are provided. The DLP projector comprises a projecting unit, a sensing unit and a color compensation unit. The projecting unit comprises a bulb, a color wheel and a control module. The control module controls the energy provided for the bulb and the color of the color wheel according to an energy waveform so as to enable the projecting unit to project a plurality of color lights. The sensing unit detects the quality of the color lights projected by the projecting unit. The color compensation unit calculates a difference between the quality detected by the sensing unit and the original quality of each of the color lights, and adjusts the energy waveform accordingly, so as to compensate the difference of each of the color lights.