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Class 348/179 - Color match comparator


Subclass of Class 348 - Television
Definition: Subject matter including a means for comparing a picture
No. of patents: 49
Last issue date: 02/01/2011


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NumberTitleIssue Date
RE42089Visual calibration target set method
A novel process of visual calibration of a computer display or the like in volves adjusting the appearance and relative appearance of targets and su targets displayed on the display. An objective method is provided for determining the precisely optimal brightness se...
02/01/2011
7358988Image signal processor for performing image processing appropriate for an output device and method therefor
A signal processor of an electronic still camera stores image data, obtained during photographing, into a buffer memory. A gain adjusting circuit performs multiplication on the stored image data with the exposure amount changed by 0.5 EV at a time. Next, a usage-spe...
04/15/2008
7339595Method and system for improved internet color
The present invention provides a technique for providing color corrected images to a user over a network. In particular, the present invention allows multiple image providers to provide color corrected images to a user when the user's computer and its associated dev...
03/04/2008
7327384Gamut false color display
A gamut error false color display uses false coloring on a monochrome image of a video picture being tested. Composite and component gamut error signals are extracted from an input video signal representing the video picture being tested. Such error signals may repr...
02/05/2008
7312815Method and apparatus for color calibration
The present invention provides a method and an apparatus for color calibration for calibrating an input color. A target color represented by a first coordinate pair (X1, Y1). An input color, which is to be calibrated, is represented by a second coordin...
12/25/2007
7301560Three-dimensional field for calibration and method of photographing the same
A three-dimensional field for calibration having a wide-angle area 110 and a zooming area 120 located within an area overlapped with the wide-angle area 110 comprises: a plurality of rough alignment reference marks 122 for zooming and a p...
11/27/2007
7277200Color Processing method and image processing apparatus
In color matching among media having different white points or different black points, how to address gray balances among media poses a problem. To solve this problem, upon converting a colorimetric value onto a color space that connects profiles, gray-balance corre...
10/02/2007
7266240Image processing system, projector, computer-readable medium, and image processing method
To provide an image processing system enabling association of the coordinates of a sensed projected image in a sensing area with the coordinates of the spatial light modulator, a projector is formed of: an image projecting section which projects calibration images; ...
09/04/2007
7262779Differential imaging colorimeter
A differential imaging colorimeter system and method which utilizes a RGB color camera to provide accurate differential colorimetry which can be employed as a portable, dedicated, offline system. The system utilizes a portable processor such as a laptop computer, a ...
08/28/2007
7221398Accurate preview for digital cameras
A digital camera and method that embodies a preview image that shows what the final image will look like, including depth of field and shutter speed temporal effects (blur). Preview images are displayed as a series of stop-action still images rather than as continuo...
05/22/2007
7215362Auto-calibration of multi-projector systems
The method for automatically calibrating a multi-projector system with at least two projectors, a digital camera and a control unit for controlling the projectors and the camera is performed according to the following steps: produc...
05/08/2007
7177466System and method for providing high fidelity color images
The present invention provides a technique for providing color corrected images to a user over a network. The user's computer and its associated devices may be remotely calibrated and or characterized and the data made available over the network to permit multiple i...
02/13/2007
7119760Color image display accuracy using green-limited gamma estimate
Improved color image display accuracy can be achieved across a computer network by obtaining information characterizing the color response of display devices associated with a client residing on the computer network, and using the information to modify color images ...
10/10/2006
7092008Remote color characterization for delivery of high fidelity images
The present invention provides a technique for providing color corrected images to a user over a network. The user's computer and its associated devices may be remotely calibrated and or characterized and the data made available over the network to permit multiple i...
08/15/2006
7071969Parameterized preview array for iterative image optimization in remote applications
A method of adjusting focus and/or other image parameters in a remotely-operated image capturing system, such as a scanning electron microscope (SEM), is provided. The method minimizes transmission bandwidth and allows a remote user to perform adjustment quickly wit...
07/04/2006
6995870System for distributing and controlling color reproduction at multiple sites
The system provides for controlling color reproduction of input color image data representing one or more pages or page constituents in a network having nodes (or sites). Each one of the nodes comprises at least one rendering device. The system distributes the input...
02/07/2006
6980231Color reproduction system
A color reproduction system includes a tristimulus value calculation unit for calculating tristimulus values (X, Y, Z) under observation illumination light corresponding to the spectral reflectance of an object, which is obtained by a spectral reflectance calculatio...
12/27/2005
6972772White point correction without luminance degradation
White point is corrected without degrading luminance on a display device. A white point manager modifies the balance between red, green and blue according to a target white point up to a threshold gray value. As the gray scale approaches white from the threshold gra...
12/06/2005
6963668Method and system for fast image correction
Compressed image files are partially preprocessed to expedite color correction and delivery of color corrected images. Color correction may be accomplished by processing only the luminance channel, only the color channels, or a combination of the luminance and color...
11/08/2005
6953250Color adjusting method for projector
A first area and a second are formed in an image projected by a projector. A standard image plate is placed in a surface on which an image for the first area is projected. A standard image has been drawn on a standard image plate and is displayed in correct colors w...
10/11/2005
6954216Device-specific color intensity settings and sub-pixel geometry
A method for determining device-specific information for pixels to obtain an optimal display of fine structure monochrome images on an output display device, the method comprising determining a set of device-specific pixel input values that will cause the display sy...
10/11/2005
6950551Terminal and input/output characteristic measurement method and calculation apparatus for display device
An apparatus for creating an ICC profile in a simple manner without using a specialized measuring instrument. A display control unit reads out a dot pattern image from a pattern image data holding unit and a grayscale pattern image containing a plurality of grayscal...
09/27/2005
6944334Color cross reference selection system and method
A system and method are proposed for the printing of all possible colors, including all permutations of primary inks used to make processed colors, in equal increments and of a size easily measurable with a device that will convert the colors into standard color coo...
09/13/2005
6895113Method and apparatus for distributing color corrected images across a network using distributed caching
Color corrected images are stored at one or more caching servers on a computer network. A client computer requests a color corrected image from a caching server, which attempts to select an image in response to the image request. If no images are available at the ca...
05/17/2005
6862029Color display system
Disclosed is a method and apparatus for controlling color displayed on a color monitor. The method includes, in one embodiment, the steps of: activating a first color scheme on the monitor; responsive to the activating of the first color scheme, measuring a first co...
03/01/2005
6809714Color image processing method, color image processing apparatus, and liquid-crystal display
The present invention embodies high-accuracy white point adjustment with a simple circuit configuration according to an efficient algorithm in a display system for full digital processing. More particularly, the present invention is directed to a digital video inter...
10/26/2004
6700627Method of characterizing a video display
A method of characterizing a video display, including the steps of providing a mathematical model of the display that relates code values to luminance output of the display, the model having a parameter that characterizes the display; displaying a referen...
03/02/2004
6686953Visual calibration target set method
A novel process of visual calibration of a computer display or the like in volves adjusting the appearance and relative appearance of targets and su targets displayed on the display. An objective method is provided for determining the precisely optimal br...
02/03/2004
6677988Image conversion processing method and apparatus, and recording medium
A plurality of reduced images (for the color temperature and the color rendering property) of a read image of an original are displayed. The user is asked to select a reduced image close to the color of the original from among the plurality of displayed r...
01/13/2004
6539110Method and system for color matching between digital display devices
A method and system for matching color displayed by source and destination display devices and particularly for providing color matching between a computer monitor and an ink printer. The technique of the present invention initially determines the combina...
03/25/2003
6480202Image processing device and method, image transmission/receptor system and method, and providing medium
Information on ambient light (viewing environment information) input from ambient light input section 101 is fed to viewing environment converting section 100a, which determines measured color values of monitor 103, and then fed to profile updating sectio...
11/12/2002
6084564Apparatus for determining a black point on a display unit and method of performing the same
To facilitate determination of a black point on a display unit, a reference brightness region and a comparison brightness region are displayed on the display unit. The former emits at a reference brightness that is used as a reference for determining the ...
07/04/2000
6008907Printer calibration
A system and method for calibrating a printer includes the steps or functions of: printing a predetermined color test pattern with the printer by transforming data, representing said predetermined color test pattern, from a device-independent color space ...
12/28/1999
5896168Apparatus and method for adjusting video characteristics of a CRT screen
An apparatus and method for adjusting video characteristics of a CRT screen having a plurality of adjustment mechanisms for adjusting visual characteristics of the CRT screen. Further included is a video playback mechanism adapted to display a screen form...
04/20/1999
5682201Method and device for generating pixel signals
A pixel signal generating device is provided with a color filter having a matrix arrangement, in which color filter elements for passing magenta light, green light, yellow light and cyan light are arranged in a regular manner. A first exposure is performe...
10/28/1997
5638117Interactive method and system for color characterization and calibration of display device
A system and method of characterizing the colors displayed on a display device and calibrating the display device is disclosed. A series of images are displayed to the user, and the user selects portions of the image that match other portions, that match ...
06/10/1997
5635960Horizontal position compensation circuit
When a first video signal produced by computer graphics is displayed on a raster scan display together with another video signal which is not produced by computer graphics, horizontal position of the first video signal is automatically compensated, by com...
06/03/1997
5614944Test method and apparatus of sequentially executing synchronous signal test, dot level test, and gradation test of a video signal generator
In a video signal test, a sync signal test is first performed in which specification items of sync signals are measured. If the result is good, then a dot level test is performed using a dot discriminating pattern in which a dot level of the video signal ...
03/25/1997
5548307Horizontal position compensation circuit
When a first video signal produced by computer .graphics is displayed on a raster scan display together with another video signal which is not produced by computer graphics, horizontal position of the first video signal is automatically compensated, by co...
08/20/1996
5517237Video photometric color system for processing color specific streams
A video photometric color sensing system is provided for characterizing the color of a homogeneous substance on a real time basis. The sensing system includes a sample port for holding a homogeneous substance and a camera quantifies a color video image of...
05/14/1996
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