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7636076 |
Four-color transflective color liquid crystal display
The pixel in a transflective color LCD panel of the present invention has an additional sub-pixel area. The pixel is divided into three or more color sub-pixels in R, G, B and at least one...
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7630107 |
Printer system and image processing system having image correcting function
A setting for white balance used by a camera during image-capturing can be reflected in a printer, thereby preventing, during printing, execution of such correction as negates an atmosphere of a...
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7629983 |
Correction techniques for soft proofing
In one embodiment a method includes obtaining a white point correction for a display device and obtaining a chromatic correction for the display device. The method may also include generating...
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7626740 |
Image processing device, recording medium and image processing method
Color reproduction ranges for images of subjects taken in the light of plural light sources each having plural color temperatures are previously stored. First, a predetermined chromatic...
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7602401 |
Image display apparatus and method, program therefor, and recording medium having recorded thereon the same
An image display apparatus for displaying an image on a panel having pixels each including a plurality of subpixels of different colors includes an interpolation operator interpolating consecutive...
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7599550 |
Method for accurate real-time compensation for changing illumination spectra in digital video cameras
A method for determining a correction for a spectra of scene illumination based on analysis of color content of a video image, in which average image colors are obtained by considering only those...
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7599093 |
Image processing apparatus, method and program
A skin-tone image portion contained in an image is detected based upon the shape of the image of a human face. An average value of each of RGB values of pixels that constitute the skin-tone image...
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7570282 |
Color correction of multiple colors using a calibrated technique
A system of correcting for color filter array by correcting for a plurality of colors in the color filter array. A color correction matrix is formed which corrects each color for a plurality of...
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7557969 |
Color balance correction chart, color balance correction method, and image forming apparatus
In the present invention, a front-side focal distance L 2 is changed without changing a rear-side focal distance L 1 so as to bring an MTF value D 2 and brightness fluctuation D 3 into an MTF...
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7551797 |
White balance adjustment
A method ( 100 ) of generating a digital image of a scene is disclosed. The method ( 100 ) is particularly advantageous in situations where a light source illuminating the scene is unknown. The...
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7551204 |
Imaging apparatus having a color image data measuring function
A post-processor circuit subjects color processing to an output data of an imaging device, that is, CCD. The post-processor circuit is provided with RGB measurement circuits. Measurement points are...
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7551775 |
Method for evaluating an image of a predetermined extract of a printed product
A method for evaluating an image of a predetermined extract of a printed product makes corrections to a white reference to account for spatial variations and changes of illumination intensity over...
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7525697 |
White balance processing apparatus and processing method thereof
Disclosed herein is a white balance processing apparatus including: white balance processing means for effecting white balance processing on a taken image based on a set white balance value;...
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7525693 |
Image reading apparatus and image reading method
There is provided a technique that, when shading compensation is performed in an image reading apparatus, is less prone to be influenced by a smudge or the like adhered to a document glass or a...
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7525703 |
Method, apparatus and computer product program for performing shading correction of image processing apparatus
An image reading apparatus includes an abnormal pixel detection device configured to examine a value of standard white image data, which is acquired by reading a white image to be a standard for a...
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7447350 |
Color difference judgment apparatus and method
The present invention is related to a color difference judgment apparatus for judging a color difference between a first color and a second color in RGB color space. The method is comprising:...
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7423779 |
Method and apparatus for automatic white balance
A method of automatic white balance for an image capture system is disclosed. The automatic white balance mechanism ascertains the illuminant source of an image by analyzing the number of white...
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7385738 |
Read module, poor connection detection apparatus and poor connection detection method of read module
A read module includes: a light source that applies light to an original to read an image; a photoelectric conversion section that converts reflected light from the original into an image signal of...
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7365755 |
Black enhancement in perceptual gamut mapping
The present invention provides for gamut mapping between a source device and a destination device, the destination device having a destination device black point with a hue, and the source device...
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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...
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7362468 |
Image sensing device and image processing method
An image sensing apparatus comprising an image sensor that senses an image of a subject, a parameter setting unit that sets a parameter used for a predetermined developing processing, and an image...
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7355753 |
Color saturation adjustment
A method of adjusting primary color data values including producing color saturation adjusted primary color data values that depend on a relative amount of chroma in the initial primary color data...
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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...
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7348993 |
System and method for obtaining accurate image content
A method and system for allowing a computer system platform the ability to create image content is provided. Captured image data of an original image is received and information corresponding to...
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7348992 |
Apparatus for and method of color compensation
An apparatus for color compensation includes a chroma deflection generation unit to calculate a chroma deflection based on an input chroma signal and a predetermined first reference value, a hue...
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7342687 |
Image reading apparatus and light source stability determination method
A scanner has an imaging device which is constituted by a cold-cathode tube, includes a light source for irradiating light to a reflection surface of a reference white plate and a plurality of...
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7342685 |
Constraint correlation for computer to plate inkjet system
Printing masters are produced by use of an inkjet printing system. The smallest halftone dot size which can be printed by the inkjet printing system is larger than the size of a pixel of the...
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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...
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7327492 |
Image processing device and image processing method
In a black character detection processing, RGB data read from a line buffer is converted into YIQ data. For a subject pixel, a subject area centered on the subject pixel is set, and a judgment...
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7324118 |
Super imposed image display color selection system and method
An optimal pen color is automatically selected for a given background color based upon a predetermined relative distance in the Munsell color-order system. The predetermined distance is defined in...
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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...
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7312892 |
Image processing apparatus, method, and program performing chromatic and achromatic data conversion for a preferred whiteness in an image output
The image processing method and apparatus perform data conversion so as to adapt a color image input from image input means to a predetermined output medium when the color image is to be output as...
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7301543 |
Systems and methods for selecting a white point for image displays
Several embodiments of the present application disclose techniques, systems and methods for changing or rendering input image data that may assume a first white point for a given display into image...
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7298379 |
Luminance preserving color conversion from YUV to RGB
This invention presents a YUV to RGB conversion method which preserves high precision of luminance information in an original YUV image signal when converting it to RGB signal. The method can be...
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7289128 |
Image processing device
The image processing device of the present invention maps signal values on saturation segments to corresponding signals on an achromatic axis. In conjunction with this, mapping of color signal...
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7289127 |
Multi-conic gradient generation
Disclosed herein is a technique for computing a complex gradient using multiple conics. In connection with a computer system having a graphics processing unit (GPU) in addition to the normal...
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7286703 |
Image correction apparatus, method and program
An identification-data memory is connected to a light-source identifying circuit. Data representing a type of characteristic quantity to be used in making an identification and identification...
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7268924 |
Optical reader having reduced parameter determination delay
In the present invention, an optical reader image sensor is adapted to clock out image data from an image sensor according to “low resolution” mode of operation in order to reduce a parameter...
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7236627 |
Image sensing apparatus and method, program, and storage medium
The object of this invention is to decrease a memory capacity required for a lookup table. To achieve this object, in an image sensing apparatus which causes an image processing section to execute...
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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...
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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...
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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...
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7102787 |
Image reading apparatus
An image reading apparatus comprises a correction coefficient determining circuit 4 for determining a correction coefficient per each bit of white reference data in a main scanning direction...
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7102669 |
Digital color image pre-processing
In one embodiment, the invention involves a method for processing an image. A sensor output is provided. An automatic gain control of the sensor output is performed to generate a first output. An...
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RE39161 |
Arrangement for mapping colors between imaging systems and method therefor
A color mapping method is used in transforming colors between color imaging systems. The method includes using forward transformation profiles that characterize the color imaging systems to...
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7064871 |
Image reading apparatus which controls a correction operation of an image signal of an original image read through a transparent member in accordance with individual data representing transmittancy of the transparent member
An image reading apparatus includes a line CCD which reads an original image placed on a glass original table which is illuminated by a light source, and an analog signal processor circuit which...
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7019776 |
Method and system for automatic white balancing
An automatic white balancing method and system. A modification of “color in perspective” white balancing technique is implemented. Rather than a default projection plane used by the typical...
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7016081 |
Image distortion correction apparatus, distortion correction method therefor, recording media, image scanner and image construction apparatus
The present invention provide an image distortion correction apparatus comprising a circumscribed rectangle extraction unit which extracts a circumscribed rectangle for each character in a...
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6995791 |
Automatic white balance for digital imaging
In performing automatic white balance of a digital image, a signal is obtained from an image sensor, which represents data corresponding to an image. A plurality of channels is obtained from the...
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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...
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