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| Number | Title | Issue Date |
| 8155442 | Method and apparatus for modifying the histogram of an image A method and corresponding computing device and computer readable storage media containing instructions for modifying the histogram of a grayscale image to improve contrast by extracting black connected components from the grayscale image that touch at least one of ... | 04/10/2012 |
| 8144986 | Method and apparatus for binarization threshold calculation A method, computing device, and associated computer readable storage media containing instructions for binarizing a grayscale image by manually determining a first threshold that yields optimal binarization values to one or more images in a set of images, calculatin... | 03/27/2012 |
| 8116563 | Image processing device and method, recording medium, and program An image processing device for processing image data includes: a gray level transforming processing unit which receives input, of image data, performs gray level transforming, and outputs image data having all of multiple color information by each pixel being config... | 02/14/2012 |
| 8111916 | Device of gathering statistics of gray distribution of image and method thereof A device of gathering statistics of the gray distribution of an image and a method thereof are provided. The device includes a comparing unit, a count unit, a memory unit, and a data allotment unit. The comparing unit determines gray information of a plurality of gr... | 02/07/2012 |
| 8103097 | Colour invariant image representation method and apparatus A color image comprises color values in each of one or more color channels for each of a plurality of points, or pixels, within the image. The image is represented by rank ordering the values in the or each color channel. The image representation generated in this w... | 01/24/2012 |
| 7925085 | Image data processing device and image data processing method An image data processing device for converting original data containing gradation-value data, into processed data containing multilevel-value data. The processing device includes: (a) a processed-image gradation-value data generator for generating, based on the orig... | 04/12/2011 |
| 7813547 | Apparatus and method for detection and analysis of imagery An apparatus and method for detecting and analyzing imagery, wherein the apparatus includes an image data acquisition means, an image data conversion means, and an adaptive thresholding means. The image data acquisition means acquires image data from a document. The... | 10/12/2010 |
| 7760938 | Algorithm to enhance the contrast of a monochrome image A method and apparatus for enhancing the contrast of an image. The method may include creating a histogram of an original image, determining output pixel values based on one or more thresholds that define a minimum number of pixels in each histogram bin, and correct... | 07/20/2010 |
| 7738699 | Image processing apparatus An image processing apparatus includes a photographing condition estimation unit for estimating a photographing condition of the input image based on photometric information and focal information. A Y/C separation unit separates the input image into a luminance sign... | 06/15/2010 |
| 7738698 | Method and apparatus for adjusting the contrast of an image A method and apparatus for adjusting the contrast of an image, in which each pixel in the image has an initial brightness level that is within a range of brightness levels between a minimum brightness level and a maximum brightness level. For each brightness level w... | 06/15/2010 |
| 7702151 | Image processing apparatus and method for changing the dynamic range of an image A histogram is generated on the basis of the pixel value of an image. An LUT used for changing the dynamic range of the image is generated on the basis of the histogram value in each pixel value interval of the generated histogram. The dynamic range of the image is ... | 04/20/2010 |
| 7646911 | Conversion method, apparatus and computer program for converting a digital image obtained by a scanner An image conversion method and an apparatus for converting a digital image obtained by a scanning unit into a converted digital image includes the steps of acquiring statistics for at least some pixels of the digital image, extracting characteristic values of a back... | 01/12/2010 |
| 7609885 | System and method for effectively implementing a texture feature detector A system and method are disclosed for performing an image search procedure in which a histogram calculator initially performs image analysis procedures to construct horizontal and vertical texture histograms corresponding to texture characteristics of subject images... | 10/27/2009 |
| 7609886 | Method and apparatus for dynamic image contrast expansion The present invention discloses a method and an apparatus for applying a dynamic contrast expansion technique to plasma display panels through performing a gamma conversion for the inputted image to convert the relationship of the brightness and gray level of the in... | 10/27/2009 |
| 7580567 | Method and apparatus for two dimensional image processing In one embodiment, the present invention is a system for two dimensional digital image processing. The system includes a memory access module for accessing a memory containing image data to be processed, and a data flow organizer module for preparing a data stream f... | 08/25/2009 |
| 7574042 | Image processing apparatus An image processing apparatus includes a photographing condition estimation unit for estimating a photographing condition of the input image based on photometric information and focal information. A Y/C separation unit separates the input image into a luminance sign... | 08/11/2009 |
| 7529406 | High speed and high accuracy image adjusting apparatus and method thereof The invention provides an image adjusting apparatus for receiving a set of input signals transmitted from a video interface, which is used for receiving a plurality of sets of input signals. The image adjusting apparatus is further used for automatically adjusting t... | 05/05/2009 |
| 7463769 | Radiometric calibration from a single image Radiometric calibration of an image capture device (e.g., a digital camera) using a single image is described. The single image may be a color image or a grayscale image. The calibration identifies and analyzes edge pixels of the image that correspond to an edge bet... | 12/09/2008 |
| 7433515 | Image processing apparatus and method for performing gradation conversion processing for an object image An image processing apparatus and method can perform gradation conversion of an image in which flatness of a pixel-value histogram of an image after gradation conversion is excellent, while using a specific gradation conversion function. A gradation conversion funct... | 10/07/2008 |
| 7433085 | Intelligent hardware for detecting color value of an image Pixel characteristics, such as whether a pixel forms part of the background of an image, are evaluated by computing histograms from pixel color space components, by comparing pixel color space components to threshold values, or by other methods. ... | 10/07/2008 |
| 7426300 | Image processing apparatus, image processing method, program and image forming apparatus, for performing density adjustment on an image based on a highlight part and a shadow part of a histogram of the image The present invention relates to a technique implementing a density adjustment fitted to an image, concretely, an image processing apparatus for (1) judging the kind of a read image with a high accuracy, and (2) producing an arbitrary γ curve. The apparatus include... | 09/16/2008 |
| 7424148 | Method and system for contrast enhancement of digital video A method for enhancing the contrast of video pictures that includes the steps of receiving an input video signal; extracting a picture from said input video signal; determining an active window for said picture; calculating a histogram for luminance values of pixels... | 09/09/2008 |
| 7424462 | Apparatus for and method of pattern recognition and image analysis A method of comparing an input pattern with a memory pattern includes the steps of loading a representation of said input pattern into cells in an input layer; loading a representation of said memory pattern into cells in a memory layer; loading an initial value int... | 09/09/2008 |
| 7415155 | Methods and apparatus for reversible data hiding through histogram modification Methods and apparatus are provided for encoding a pixel domain image with hidden data by modifying the histogram of the pixel domain image to make space for such hidden data. ... | 08/19/2008 |
| 7394932 | Video signal processor and method of processing video signal An input video signal is corrected based on a gradation correction curve. Generated first is histogram data which indicates distribution of each of a plurality of levels at which a luminance signal component of the input video signal is divided from the lowest to th... | 07/01/2008 |
| 7385731 | Method and system for processing a multi-colour image A method and system are provided for processing digital multi-colour images for the reproduction thereof on a colour printing and/or copying system. Particularly, the printing and/or copying system is capable of complementary forming registered composite multi-colou... | 06/10/2008 |
| 7386181 | Image display apparatus An image processing apparatus includes a gradation quantization processing in a case of performing a region dividing processing in the animation of a moving picture and in an object extraction, in which frequency histograms are created for each frame, a judgment is ... | 06/10/2008 |
| 7379612 | Dynamic reconstruction of high-resolution video from color-filtered low-resolution video-to-video super-resolution A method is provided of solving the dynamic super-resolution (SR) problem of reconstructing a high-quality set of monochromatic or color superresolved images from low-quality monochromatic, color, or mosaiced frames. The invention includes a joint method for simulta... | 05/27/2008 |
| 7372594 | Image processing apparatus and method, and storage medium A pattern which does not appear at a flat portion in normal binarization processing is set as a code pattern, and a code formed from this pattern is attached. At this time, code attachment with little degradation in image quality is implemented by selecting an unnot... | 05/13/2008 |
| 7369285 | Method of processing image An attentional portion to be corrected in gradation of an image is specified, and a gradation corrective function with respect to a density of the specified attentional portion is generated. Preset gradation conversion characteristics are corrected with the gradatio... | 05/06/2008 |
| 7362470 | Color image processing apparatus A color image processing apparatus uses a layout analysis section, a character/background color extraction section, an input image character/background color difference calculation section, an output image character/background color difference estimation section and... | 04/22/2008 |
| 7362908 | Adaptive generation of Q-table2 for improved image quality Brightness correction and image enhancement are derived to compensate for changes in captured image data by hardware scanners and the like by statistically measuring the captured data and generating or selecting a compensation quantization table to be substituted in... | 04/22/2008 |
| 7362368 | Perfecting the optics within a digital image acquisition device using face detection Within a digital acquisition device, acquisition parameters of a digital image are perfected as part of an image capture process using face detection within said captured image to achieve one or more desired image acquisition parameters. Default values are determine... | 04/22/2008 |
| 7359092 | Picture image input method A picture image input method includes inputting a picture image of an object as a picture image signal. A histogram of a frequency with respect to brightness information of the picture image signal is created. A first brightness is created, which is a maximum bright... | 04/15/2008 |
| 7358994 | Image processing apparatus, image processing method, recording medium thereof, and program thereof In image processing apparatus and method for displaying and printing a person image photographed by a digital camera, it is possible to automatically correct image data and output the person image of an optimum characteristic. In this apparatus, an image obtaining p... | 04/15/2008 |
| 7359573 | Contrast compensation apparatus and method thereof A contrast compensation apparatus and a method thereof utilize a simplified hardware structure and a low contrast distortion. The contrast compensation apparatus includes a pixel value detection unit to detect a distribution of pixel values of respective pixels of a... | 04/15/2008 |
| 7359572 | Automatic analysis and adjustment of digital images with exposure problems Techniques and tools for analyzing and adjusting the exposure of digital images are described. For example, a computer processes a digital image by analyzing exposure data, assigning an image classification (e.g., StretchNeeded, UnderExposed, OverExposed, or Normal)... | 04/15/2008 |
| 7359570 | Method of reducing a blocking artifact when coding moving picture A method of coding a moving picture is provided that reduces blocking artifacts. The method can include defining a plurality of defining pixels S0, S1, and S2, which are centered around a block boundary. If a default mode is selected... | 04/15/2008 |
| 7359099 | Image reading device and image forming apparatus An image reading device includes a photoelectric device provided with an empty transfer part. An A-D converter performing A-D conversion on an output signal for each pixel of the photoelectric device. A reference voltage varying part varies a reference voltage of th... | 04/15/2008 |
| 7346207 | Image defect inspection method, image defect inspection apparatus, and appearance inspection apparatus In an image defect inspection method and apparatus which detects a gray level difference between corresponding portions of two images, automatically sets a threshold value based on the distribution thereof, compares the gray level difference with the threshold value... | 03/18/2008 |
