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| Number | Title | Issue Date |
| 7916365 | Image reading apparatus and image forming apparatus with white light emitting color correction elements An image reading apparatus equipped with an illuminating device having little tint variation. A lamp unit illuminates an original with light, and includes a plurality of white LEDs, and a plurality of auxiliary LEDs that emit lights of different colors and arranged ... | 03/29/2011 |
| 7817317 | Image reading apparatus and shading correction data generating method An image reading apparatus capable of generating accurate shading correction data while removing noise. A shading reference plate is arranged at a location having different optical distance between the location and an image sensor in an image reading unit from optic... | 10/19/2010 |
| 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 light source in a recorded image in which the atmosphere has been inten... | 12/08/2009 |
| 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 characteristic of an input image is analyzed, thereby determining whether the im... | 12/01/2009 |
| 7433099 | Image sensing apparatus, image sensing method, program, and storage medium An object of this invention is to quickly complete white balance calculation in photographing. To achieve this object, an image sensing apparatus includes an image sensing element in which a line on which first and second color filters are arranged and a line on whi... | 10/07/2008 |
| 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 pixels within a predefined white area in a color space diagram. The auto... | 09/09/2008 |
| 7400332 | Hexagonal color pixel structure with white pixels A digital color imager provides an extended luminance range, enabling a method for an easy transformation into all other color spaces having luminance as a component. White pixels are added to hexagonal red, green and blue pixels. These white pixels can alternativel... | 07/15/2008 |
| 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 the image; and a connector to be electrically connected to a control... | 06/10/2008 |
| 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 and the destination device being respectively characterized by a sourc... | 04/29/2008 |
| 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 |
| 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 processing unit that selects raw data from the image sensing unit or ... | 04/22/2008 |
| 7359100 | Image correction method, program, and apparatus An image correction method of this invention includes a step of identifying a first pixel that satisfies one of predetermined conditions as to a pixel level, which are set for each color component, among pixels included in a specific image; a step of identifying a s... | 04/15/2008 |
| 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 values. ... | 04/08/2008 |
| 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 |
| 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 deflection generation unit to calculate a hue deflection based on an in... | 03/25/2008 |
| 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 colorimetric points is measured. Automatic determinations are made as t... | 03/25/2008 |
| 7349132 | Image reading apparatus An image reading unit according to the present invention includes a lamp to incorporate a change in temperature conditions to the emitting light amount, the lamp capable of illuminating an reading object with a light of a predetermined intensity, an image signal gen... | 03/25/2008 |
| 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 pixels arranged in one line, and detects light reflected on the reflectio... | 03/11/2008 |
| 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 recording grid defined by the addressability of the printing device.... | 03/11/2008 |
| 7340106 | Image processing apparatus and method, and image-capturing apparatus The present invention allows the amount of movement indicating the movement of an object within an exposure period to be obtained. An estimated-mixture-ratio processor 401 calculates an estimated mixture ratio for each pixel and an estimated motion vector by ... | 03/04/2008 |
| 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 |
| 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 pixel that has the lowest brightness in the subject area is set. Then, a ... | 02/05/2008 |
| 7327497 | Image reading apparatus, control method therefor, and program An object of this invention is to suppress a decrease in reading efficiency while preventing image degradation. To achieve this object, an image reading apparatus includes a light source which illuminates an object, a sensor which photoelectrically converts light re... | 02/05/2008 |
| 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 terms of saturation, hue and or lightness. In general, sufficient vis... | 01/29/2008 |
| 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 |
| 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 a hardcopy by image output means to the predetermined output medium. ... | 12/25/2007 |
| 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 data to be rendered under a second—assumed, desired or measured—... | 11/27/2007 |
| 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 used to convert the original YUV signal to arbitrary quantization level... | 11/20/2007 |
| 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 present around the saturation segments is mapped while preserving the con... | 10/30/2007 |
| 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 central processing unit (CPU), gradients can be computed in real time. The ... | 10/30/2007 |
| 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 points are stored in the identification-data memory with regard to each ty... | 10/23/2007 |
| 7282221 | Antiviral product, use and formulation thereof An antiviral product is comprised of at least three dosages forms, each of which has a different release profile, with the Cmax for the antiviral product being reached in less than about twelve hours. In one embodiment, there is an immediate release dosag... | 10/16/2007 |
| 7271380 | Color input scanner calibration system A photosensitive apparatus, such as scanner, includes a plurality of pixels, each pixel having associated therewith a set of photosensors, each photosensor filtered to record a primary color. The photosensors are exposed to light of each primary color separately, th... | 09/18/2007 |
| 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 determination delay of the reader. In a low resolution mode, some pixe... | 09/11/2007 |
| 7251065 | Image color balance for scanners using an illumination spectral sensor An image scanning system for producing an electronic version of a hardcopy element which is compensated for spectral content of an illumination source in the image scanning system, the image scanning system includes a sensor for receiving light containing the hardco... | 07/31/2007 |
| 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 image processing to convert digital image data, which is obtained by ... | 06/26/2007 |
| 7227666 | Dynamic selection of rendering intent for color proofing transforms In general, in one aspect, the invention features an apparatus, method, and computer program product for automatically selecting a rendering intent. It includes identifying a device color profile associated with a device; and automatically selecting a rendering inte... | 06/05/2007 |
| 7200264 | White point estimation using color by convolution The probability of a chromaticity being a white point of image scene illumination is estimated by convolving a chromaticity histogram with a function of log probability distribution of chromaticities under an illuminant. ... | 04/03/2007 |
| 7196724 | Image signal processing device, digital camera and computer program product that perform white balance adjustment using pixel outputs from extracted areas R, G and B signals are output from individual pixels provided at an image-capturing element. Pixel output averages corresponding to the R, G and B signals are calculated for each of partition areas into which the light-receiving surface of the image-capturing elemen... | 03/27/2007 |
| 7190493 | Image reading apparatus and image reading method A white reference image is inputted to an image sensor so as to output groups of analog data. The groups of analog data are converted by a processing unit into those groups of digital data the number of which is smaller than that of photosensor elements of the image... | 03/13/2007 |
