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| Number | Title | Issue Date |
| 8120670 | Apparatus and method for controlling gain of color signal An apparatus for controlling gain of color signal includes an auto white balance algorithm applying unit determining a white estimation region from an input image, and calculating a first color signal gain for correcting an average color signal level of pixels of th... | 02/21/2012 |
| 8094209 | Imaging signal processing apparatus An image signal processing apparatus includes a sensing section which includes R, G, and B pixels and produces R, G, and B color signals, a first adding section which adds, while weighting pixels, a color signal of a center pixel of a pixel arrangement and color sig... | 01/10/2012 |
| 8026954 | System and computer-readable medium for automatic white balancing Systems and computer-readable medium are disclosed for automatic white balancing of an input image. Accordingly, the system includes a cast detector configured to receive and classify an input image based at least in part on a selection of constituent pixels of the ... | 09/27/2011 |
| 7656435 | Image processing apparatus and pixel-extraction method therefor By sensing an object without performing light projection with a light projection unit, a first image is acquired, and by sensing the object while performing light projection with the light projection unit, a second image is acquired. Based on the acquired first imag... | 02/02/2010 |
| 7432961 | Electronic camera having white balance function An electronic camera of the present invention has an image pickup part, an ambient light colorimetric part, an operation member, a colorimetric calculation part, and a white balance adjustment part. The image pickup part captures an optical image through a photo-tak... | 10/07/2008 |
| 7423674 | Electronic camera having color adjustment function and program therefor An electronic camera controls an imaging section to generate a test image without flash and a main image with flash. Then, the electronic camera judges correlation between histogram distributions of the test image and the main image. If the correlation between the h... | 09/09/2008 |
| 7362356 | White balance correction including indicative white color determination based on regions in a divided image An entered image is divided into a plurality of blocks and it is determined, on a per-block basis, whether image data within an applicable block is indicative of the color white, based upon a condition, from among a plurality of conditions, that conforms to the posi... | 04/22/2008 |
| 7355637 | Apparatus and method for managing image data by obtaining spectral reflectance Object color data without an effect of illumination light is stored together with thumbnail image data generated on the basis of the object color data and data regarding illumination light so as to have a relationship therebetween, whereby the object color data is c... | 04/08/2008 |
| 7352894 | Systems and methods for illuminant estimation Embodiments of the present invention comprise systems and methods for estimation of an image illuminant. ... | 04/01/2008 |
| 7352409 | Blue stretch circuit and level detection circuit A blue stretch circuit of this invention has a first voltage detection circuit and a second voltage detection circuit, each of which detects that an amount of each of the first and the second color difference signals are within a predetermined range, a blue stretch ... | 04/01/2008 |
| 7342610 | Color balance adjustment of image sensed upon emitting flash light In a method of controlling an image sensing apparatus, which has an image sensing device, a flash light used to illuminate an object with light, and a shutter switch, when an image sensing instruction is issued upon depression of the shutter button, an image is sens... | 03/11/2008 |
| 7333138 | White balance adjustment apparatus and method for a digital image device An apparatus and method for a digital image device having an image-capturing device for photoelectrically changing an optical image focused through a lens unit, and for converting a signal output from the image-capturing device into a digital signal and processing i... | 02/19/2008 |
| 7327878 | Image pickup apparatus In an image pickup apparatus, a particular color signal is extracted from an input video signal based on the selected image taking mode information, white balance control amount calculating means calculates a control amount based on the extracted video signal of the... | 02/05/2008 |
| 7319483 | Digital automatic white balance device A digital white balance device is simply implemented in a digital processing scheme by employing a grey world algorithm. In the device, a timing controller receives vertical and horizontal synchronization signals of an input image and produces a timing control signa... | 01/15/2008 |
| 7307656 | White balance correcting device A white balance correcting device for correcting white balance by using video signals is arranged to be capable of accurately obtaining white balance even in a case where a picture includes only a small white part therein. The white balance correcting device is arra... | 12/11/2007 |
| 7233357 | Image pickup apparatus with image evaluation An image capture apparatus includes an image capture unit adapted to capture an image using an image pickup element, a switch adapted to instruct the image capture apparatus to start a recording process of recording a captured image to a recording medium, and a cont... | 06/19/2007 |
| 7227586 | Color signal processing A method of adjusting the N components of an N component color signal (such as the 3 components of an RGB color signal) with respect to color temperature of illuminating light when imaging a colored subject, comprising the step of computing the difference between ea... | 06/05/2007 |
| 7227571 | Color reproduction corrector for image input device and color reproduction correction method The present invention has an object to provide a color reproduction correcting device for image input apparatus capable of excellently reproducing colors without difficulties, even when an image is reproduced under an observation light source that is different from ... | 06/05/2007 |
| 7218344 | System and method for efficiently performing a white balance operation A system and method for efficiently performing a white balance operation preferably includes an electronic camera device that captures image data using a imaging device. A color manager may then convert the captured image data into perceptual color space data. The c... | 05/15/2007 |
| 7212235 | Image pickup apparatus An image pickup apparatus such as a video camera has the capability of automatic white balance control whereby the white balance is quickly adjusted for any object even just after an operator has turned on a power supply. An image pickup element converts an optical ... | 05/01/2007 |
| 7200279 | Method and system for image chroma suppression A method and system for image chroma suppression of an image sensor system. Chroma suppression is performed to reduce the false color phenomena. The amount of chroma suppression is performed based on the strength of spatial frequency for a current processing pixel m... | 04/03/2007 |
| 7190394 | Method for statistical analysis of images for automatic white balance of color channel gains for image sensors A process for performing white balancing of an image is performed by subdividing an image into a plurality of subframes, and then analyzing each subframe to determine if that subframe is predominantly monochromatic other than gray. If so, that subframe is excluded f... | 03/13/2007 |
| 7184079 | White balance adjustment method, image processing apparatus and electronic camera An image-capturing device captures a subject image through an exchangeable lens. A white balance sensor that is set at a position conjugate with the position of the image-capturing device relative to the exchangeable lens to receive the light from the subject image ... | 02/27/2007 |
| 7158174 | Method for automatic white balance of digital images A method of adjusting the color characteristics of a digital image includes receiving a digital image including a plurality of pixels, receiving non-pixel data relating to camera capture parameters including an aperture value, an exposure time value, and a speed val... | 01/02/2007 |
| 7154563 | Automatic brightness limitation for avoiding video signal clipping A brightness limitation system is employed in a television circuit to prevent the black reference voltage level and the video signal from entering a minimum signal clipping zone, to provide precise correction signal, limiting the brightness, to maintain a constant b... | 12/26/2006 |
| 7148921 | White balance adjustment method, image sensing apparatus, program, and storage medium An object of this invention is to always obtain accurate white balance regardless of photographing conditions. To achieve this object, a white balance adjustment method includes a first color temperature calculation step of calculating a first color temperature from... | 12/12/2006 |
| 7142218 | Image display device and electronic apparatus using same, and image display method of same An image display device of the present invention is provided with a liquid crystal display panel for displaying an image in accordance with an input of a chrominance signal, a sensor for sensing light characteristics of external light, and a chrominance signal conve... | 11/28/2006 |
| 7139425 | Method and apparatus for correcting white balance, method for correcting density and a recording medium on which a program for carrying out the methods is recorded The method and the apparatus which correct white balance estimate, by using at least gray and/or skin color information contained in an input color image, a color temperature of a photographing light source with which the color image has been formed and correct an i... | 11/21/2006 |
| 7133071 | Image pickup apparatus An image pickup apparatus using white sheet data for correcting the color of a picked-up image. Each image pickup data is converted into a file by an image filing unit and recorded by a medium-recording unit. Average value data of each color component data for part ... | 11/07/2006 |
| 7123293 | Image processing method to compensate for color differences due to a type of image sensing device In image processing on digital image signals, a color difference due to a type of image sensing device by which the image signals have been acquired is compensated. For this purpose, a characteristic value, such as an average of each digital image signal, is extract... | 10/17/2006 |
| 7113207 | Chrominance signal processing apparatus, image-sensing apparatus and control methods for same The present invention relates to a chrominance signal processing apparatus and method for providing optimal color processing according to the hue of the color image data. Red, green and blue signals are input to a chroma composition ratio determination circuit that ... | 09/26/2006 |
| 7098944 | Image processing apparatus and method In converting image sensing data into image data, a plurality of image sensing data meeting a predetermined condition are processed as a group of image sensing data. An image reproduction parameter is obtained from this image sensing data group, and each image sensi... | 08/29/2006 |
| 7088391 | Color video camera for film origination with color sensor and luminance sensor A technique for producing electronic video signals representative of color images of a scene includes use of a regular CCD for the color channel and a back-thinned CCD for a luminance channel; a technique for deriving blue and reconstructing full resolution R, G, B ... | 08/08/2006 |
| 7084880 | Video display device and color temperature correction method for the same A video display apparatus comprises a color temperature correction circuit which controls temperature color of an input video signal; a display device which displays an image upon basis of said video signal corrected by said color temperature correction circuit; and... | 08/01/2006 |
| 7081925 | Method and apparatus for adapting chromatic compensation The present invention relates to a method and an apparatus for adaptive compensation of chrominance, aiming at the optimization of colors of electronic images. The invention includes the experimental data obtained when the best viewing effects are achieved, the divi... | 07/25/2006 |
| 7061528 | Signal processing apparatus which suppresses a color signal according to luminance level To provide a signal processing apparatus and an image pickup signal processing method both of which restrain a color signal from being influenced by band limitation in a color processing system, thereby enabling signal processing which produces an undegraded image, ... | 06/13/2006 |
| 7020327 | Machine readable code image and method of encoding and decoding the same A machine readable code, a code encoding method and device and a code decoding method and device are provided. This machine readable code includes a data area made up of at least one data cell, in which different colors or shades are encoded and expressed depending ... | 03/28/2006 |
| 7002623 | Image processing apparatus for correcting a color and texture of an image and displaying the corrected image An image processing apparatus is provided which includes an image input apparatus for inputting an image including an object. The image is input into a reproducing environment converting unit, which sets a desired illuminating environment on a monitor display screen... | 02/21/2006 |
| 7002624 | Apparatus and method for obtaining object-color component data First image data is obtained by performing an image capturing operation with a flash and, subsequently, second image data is obtained by performing an image capturing operation without a flash. By using data of a differential image between the first and second image... | 02/21/2006 |
| 6975759 | Method and system for white balancing images using facial color as a reference signal A system for white balancing images using facial color as a reference signal is provided. The system includes a face detector that is operable to receive a digital image and to detect a human face within the digital image. A skin tone extractor is operable to extrac... | 12/13/2005 |
