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7636487 |
Display device and driving device thereof
A driving device comprises a look-up-table, a multiplier, an adder, and a dithering portion. The look-up-table stores red and blue colors of corrected image signals and first difference data (f)...
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7634153 |
Image processing apparatus and control method thereof
This invention provides an image processing apparatus which can effectively remove conspicuous noise contained in image data, while suppressing deterioration of image information. Image data...
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7630572 |
Image processing apparatus, image processing method, and computer program
Image data to be recovered having a loss part is input into an image processing apparatus. The image processing apparatus generates restoration data with the loss part corrected. The image...
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7630102 |
Image reading device and method
An image reading device reads out an image of a document being conveyed above one main surface of a contact glass, changes a document reading position if the image has an abnormality, and gives a...
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7630575 |
Image processing apparatus, image processing method, program, and computer-readable medium
An image processing apparatus generates, from original image data, low- and high-frequency components of the original image data. By smoothing at least some of the high-frequency components, the...
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7623722 |
Animated display for image manipulation and correction of digital image
A method for selectively optimizing a plurality of image characteristics for captured images, that includes modifying two or more one-dimensional image characteristic controls using a single loop...
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7623725 |
Method and system for denoising pairs of mutually interfering signals
In various embodiments of the present invention, a number n of mutually interfering signals are denoised by selecting a discrete universal denoiser method that denoises n mutually interfering...
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7616351 |
Image reading device
By reading an image of a reference plate, whether or not a likeliness that a linear abnormal image is occurred in the image of the document due to a foreign matter and the like attached on a...
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7612918 |
Image processing apparatus
An image processing apparatus of the present invention includes: a background density distribution estimating part 12 that estimates density distribution of background pixels; an area density...
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7609881 |
Device and method for image processing as well as image processing computer program
The image processing device is equipped with an image area extracting part for extracting a plurality of image areas from image data, an image positional information recognizing part for...
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7609419 |
Image scanning apparatus and method
An image scanning apparatus and method are provided in which shading data of the image scanning apparatus is acquired when manufacturing the image scanning apparatus, which is when a white...
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7602995 |
Correcting image distortion caused by scanning
An apparatus, system, method, and computer program product is disclosed, each capable of correcting distortion in a scanned image, using at least a character line extracted from the scanned image....
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7599572 |
System for manipulating noise in digital images
An apparatus for analyzing the broadband noise content of a digital image comprising the following: a means of automatically identifying regions of originally constant color in the image by...
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7589871 |
Original transport and reading apparatus, reading position adjustment method of original transport and reading apparatus, and image forming apparatus
An original transport and reading apparatus includes an original transport apparatus having a transport path, a first image reading unit that reads an image of an original facing the original...
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7576891 |
Apparatus and method for improving image quality of image sensor
Provided are an apparatus and method for improving an image quality of an image sensor, capable of adaptively removing noise occurring in a de-mosaicking that is performed for generating...
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7570838 |
Image correction method for compensating for misalignment of pixels in holographic digital data storage system
For compensating for misalignment of pixels at the time of reproduction in a Holographic Digital Data Storage (HDDS) system, and thereby correcting an image, a stored page-based image is detected...
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7570835 |
Edge smoothing filter for character recognition
A system and method for correcting defects in a black white image. An edge smoothing filter is disclosed that comprises: a system for selecting a block of pixels comprising one center pixel and...
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7564583 |
Methods and apparatus for reconstructing digitized images
Methods and apparatus for reconstructing digitized images are provided that include an image reconstruction path that receives a digitized image and provides a processed RGB or CMYK image that may...
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7564489 |
Method for reducing row noise with dark pixel data
A method for reducing the row noise from complementary metal oxide semiconductor (CMOS) image sensor by using average values from sub-regions of the shielded pixels. The method operates on sensor...
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7558437 |
Method and apparatus for image processing
In an image reading apparatus, the invention provides a method for detecting foreign matter which may adhere to a white reference plate, and correcting a reference value when foreign matter is...
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7551326 |
Image reading apparatus for detecting noise in image data
An image reading apparatus includes, with the purpose of detecting noise in an image due to dust on a platen, three line sensors, a platen between an original and the line sensors, a moving...
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7551794 |
Method apparatus, and recording medium for smoothing luminance of an image
A smoothing calculator determines a smoothed mean luminance value C 1 ×μ(t)+(1−C 1 )μ′(t−1) based on a mean luminance value μ(t) input at time t and a smoothed mean luminance value...
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7551796 |
Image processing apparatus, image data generation and transmission method and image data generation and transmission program
An image processing apparatus connected to an external apparatus via a network includes an selecting unit for selecting an application mode and an image quality mode, a scanning unit for scanning...
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7551314 |
Adjustable bounding box for transparent scanner
An apparatus capable of modification of an image prior to scanning by a scanning device having a scanning element, a viewing surface, a glass platen, and a controller having memory capability,...
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7548355 |
Image scanning apparatus and method, and storage medium
A scheme for obtaining an original image free from any dust or scratches on a film by scanning a film original or the like with visible light and infrared light has been proposed. This scheme...
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7548660 |
System and method of spatio-temporal edge-preserved filtering techniques to reduce ringing and mosquito noise of digital pictures
A method can include selecting a block of pixels. It may be determined whether the block of pixels contains an edge pixel. If the block of pixels contains an edge pixel, a first pixel may be...
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7545995 |
Automated statistical self-calibrating detection and removal of blemishes in digital images dependent upon changes in extracted parameter values
A method of automatically correcting dust artifact within images acquired by a system including a digital camera includes determining that certain pixels correspond to dust artifact regions within...
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7538907 |
Image reading apparatus capable of self-diagnosis using consecutive number of adjacent abnormal pixels
An apparatus for reading an image on a medium to be read using a light emitting device and a light receiving device is disclosed in which a determination is made that at least one of the light...
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7529425 |
Denoising method, apparatus, and program
A blurred image generating section generates a plurality of blurred images Sm (where m=1 to n and n≧2) different in frequency response characteristic from one another, based on an original image...
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7528997 |
Systems and methods for streak detection in image array scanning
In a system and method for streak detection in a fixed imaging array digital scanning system, redundant information regarding individual lines of a scanned image collected by multiple discrete rows...
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7522317 |
Image reading device
Delay circuit parts are disposed between a signal converting part and buffers. Since the capacities of delay elements provided respectively for the wiring of output wiring parts are different, time...
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7518757 |
Image reading apparatus and control program therefor
There is provided an image reading apparatus that is capable increasing the detection accuracy for dust, scratches, dirt, and the like. Sixty-four lines of sampling points on a reference standard...
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7515317 |
Compensating a zipper image by a K-value
A method of compensating a zipper image by a K-value, and a method of calculating the K-value. Whether the nth primitive pixel of the mth line is obtained by primary line scan is determined. If the...
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7502143 |
Signal processing method, signal output apparatus, signal processing apparatus, image processing apparatus, and image forming apparatus
A pseudo-random number generator comprises a controller, a plurality of LFSRs, a FIR filter and a normalizer. The pseudo-random number generator initializes the LFSRs in such a manner that each...
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7499599 |
Method of real-time correction of non-functioning pixels in digital radiography
A method and program product for real-time correction of non-functioning pixels in digital radiography, where the method comprises: receiving a list of non-functioning pixels; determining which...
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7495806 |
System and method for compensating for noise in a captured image
A system and method are provided that compensates for noise in a captured image. One embodiment comprises scanning an image a predefined number of times with a plurality of pixels, receiving light...
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7492485 |
Image-based compensation and control of photoreceptor ghosting defect
A system and method for correcting a defect in an image, such as a ghost defect or a reload defect, by compensating for the defect. A defect model is created with a source target function that...
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7474316 |
Bit-depth extension of digital displays via the use of models of the impulse response of the visual system
A dithering pattern that is generated based on a spatial operation is used for a Bit-Depth Extension (BDE) technique for preventing contouring artifacts in an image displayed by a display having a...
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7474799 |
System and method for electronic correction of optical anomalies
An electronic correction system and method for correcting optical anomalies, namely distortions, color non-convergence (excluding axial chromatic aberration) and luminance (or chrominance)...
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7471845 |
De-ringing filter
An image de-ringing filter system and method are provided. The method comprises: accepting image pixels; collecting data from a first group of pixels neighboring a test pixel; in response to the...
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7471416 |
Signal processing unit having a digital circuit for processing image signals outputted from an image capturing element
There is described a signal processing apparatus, which conducts processing of a signal outputted from an image capturing element that converts an optical image obtained by irradiating light on an...
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7466463 |
Color conversion definition correction apparatus, and color conversion definition correction program storage medium
A color conversion definition correction apparatus corrects a color conversion definition defining a relation between first color data representative of a color by coordinates on a first color...
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7463390 |
Information reading apparatus, method and system for processing image, program, and recording medium
An image reading apparatus detecting scratch and dirt information of a film document without the need for complex structures and complex control in the image reading apparatus. The apparatus can...
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7460133 |
Optimal hiding for defective subpixels
A technique for the modification of sub-pixels to hide defects for defective sub-pixels.
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7453587 |
Method for removing streaks from a scanned image
A method for removing streaks from a scanned image includes performing a scanner light source OFF scan to generate a dark image having M rows of pixels and N+W columns of pixels; generating a line...
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7450778 |
Artifact reduction in a digital video
A method performed by a processing system is provided. The method comprises performing a first set of correlations between a first plurality of pixel values in a first frame and a target pixel...
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7447383 |
Directional interpolation method using frequency information and related device
A method for interpolating a pixel within an image is provided. The image has a plurality of pixels arranged in a matrix format. The method includes: detecting if there is an edge in a block of the...
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7436553 |
Image reading device, image reading method and image forming apparatus
An image reading device includes: a solid-state image sensor for converting image information into an electric signal; an analog processing section for generating an analog processing signal by...
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7437013 |
Directional spatial video noise reduction
A method of reducing spatial noise in an image. Low-pass (smoothing) filters are calculated simultaneously from three successive image rows. Three blocks (m 1 , m 2 , m 3 ) are associated with the...
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7433538 |
Image processing apparatus and control method thereof
This invention provides an image processing apparatus which can effectively remove conspicuous noise contained in image data, while suppressing deterioration of image information. Image data...
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