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| Number | Title | Issue Date |
| 8134762 | Methods and systems for characterizing regions of substantially-uniform color in a digital image Aspects of the present invention relate to systems and methods for characterization of background regions of substantially-uniform color in a digital image. According to a first aspect of the present invention, a histogram of the first-channel values of a plurality ... | 03/13/2012 |
| 7570403 | Color image processing apparatus A color conversion section in an image processing apparatus converts input colors at positions of interest in input color document data to a limited number of colors, on the basis of page layout information that is updated on a page-by-page basis and delivered from ... | 08/04/2009 |
| 7430060 | Fast low-memory paper color suppression algorithm A fast, low-memory-requiring, adaptive algorithm for determining and correcting for page background color generally involves quantizing the color component values of the pixels of the scanned page, dividing the scanned color space into a set of bins, and assigning e... | 09/30/2008 |
| 7421120 | Apparatus correcting image by luminance histogram An apparatus and method for selectively increasing contrasts of bright and dark regions and automatically determining an appropriate degree of correction such that the image has a corrected luminance that is closer to an estimated optimal average luminance (EOAL) de... | 09/02/2008 |
| 7411698 | Method and device for detecting a color cast in an image Given an image converted into a chromatic space (101), a method is used for identifying a color cast (i.e. a dominant color), through statistical analysis (105) of the distribution on an color plane of the chromatic space of the color histogram of a re... | 08/12/2008 |
| 7397483 | Image data conversion using interpolation In tetrahedral interpolation suitable for data conversion implemented by digital computations, when the unit rectangular hexahedron is a regular hexahedron, no complicated multiplication is required, and the computation volume can be greatly reduced. However, when t... | 07/08/2008 |
| 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 |
| 7372596 | Color conversion definition creating method, color conversion definition creating apparatus, and color conversion definition creating program storage medium A combined profile is created through a first step of deriving a coordinate component of a black on a color space for CMYK dot % for a printer associated with a predetermined representative coordinate in the color space for CMYK dot % for printing, on the representa... | 05/13/2008 |
| 7362455 | Processing scanned pages Systems and methods of processing scanned pages are described. In one aspect, the invention features a method of processing a sequence of scanned pages of a document in accordance with which, page number indicators are extracted from scanned pages of the document. A... | 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 |
| 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 |
| 7355752 | Two-dimensional calibration architectures for color devices A color output device is generally driven by at least three independent control signals for control of its response. A desired response in device independent color space is normally obtained by employing a cascade consisting of a characterization transform and calib... | 04/08/2008 |
| 7351946 | Semiconductor integrated circuit device and imaging system An AD-converted digital video data is encoded by a difference encoding method before it is outputted and such encoded digital video data is then outputted, after it is converted to gray code or to a predetermined code in which a fixed value is added. Problems solved... | 04/01/2008 |
| 7330287 | Tone scale adjustment A method of processing data from a digital image to optimize the tonescale to a printer being used without operator intervention adjusts the gain and offset of the input image data to occupy the full range of the printer, adjusts the shadow and highlight regions of ... | 02/12/2008 |
| 7319787 | Automatic contrast enhancement A method of automatic contrast correction comprises providing digital image data, representing the data in the form of a brightness histogram, determining a measure of central tendency for said histogram, adding a shift value to the measure of central tendency to pr... | 01/15/2008 |
| 7292724 | Image processing apparatus and image processing method The present invention provides an image processing apparatus on which an image forming engine for forming a full-color image by using color materials corresponding to data of color tones on the basis of C (cyan), M (magenta), Y (yellow), and K (black) data is mounte... | 11/06/2007 |
| 7289667 | Method and apparatus for enhancing a digital image by applying an inverse histogram-based pixel mapping function to pixels of the digital image A method and associated device wherein an inverse histogram based pixel mapping step is combined with an edge enhancement step such as unsharp masking. In such an arrangement the inverse histogram based pixel mapping step improves the performance of the unsharp mask... | 10/30/2007 |
| 7286716 | Image quality enhancement circuit and method using inter-frame correlativity An image quality enhancement circuit and a method using inter-frame correlativity includes a first transfer function generator calculating histogram data corresponding to a gray level distribution with respect to an inputted luminance signal by frame unit to generat... | 10/23/2007 |
| 7283667 | Image processing unit, image processing method, and image processing program The present invention provides an image processing unit capable of differentiating two images with a difference which the user expects to see, an imaging processing method thereof, and an image processing program thereof. The image processing unit of the present inv... | 10/16/2007 |
| 7262778 | Automatic color adjustment of a template design The present invention generates a color template design. According to one aspect, a source image is selected. A histogram is generated for the selected source image. Colors are suggested automatically for the generated histogram. At least one of the suggested colors... | 08/28/2007 |
| 7263222 | Automated color control in film-to-digital transfer A system and method for automatically adjusting color parameters during a film-to-digital transfer. An operator uses standard telecine equipment to preview scenes in order to determine a natural clustering of fields or scenes. Each cluster is processed separately. A... | 08/28/2007 |
| 7259769 | Dynamic backlight and image adjustment using gamma correction Methods and apparatuses for the application of image intensity and luminance adjustment and gamma adjustment for the purpose of compensating perceived image brightness, and thus enhancing the range of display backlight brightness adjustment that may be applied to co... | 08/21/2007 |
| 7239329 | Brush texture simulating apparatus and method Techniques for superimposing highlights and shadows onto a background in order to simulate a brush texture graphical style within a software application's component window. The techniques include decoding a user-selected base-color into its individual color componen... | 07/03/2007 |
| 7236641 | Page background detection and neutrality on scanned documents A Statistics Module (STS) is disclosed for collecting essential statistics about an image content for the purpose of applying various image enhancement operations such as page background removal and automatic neutral detection to determine if the page is gray or col... | 06/26/2007 |
| 7236264 | System and method for adjusting color reproduction A system and method for adjusting the color of a scanned image includes obtaining image data for the scanned image, generating an output image from the scanned image, and obtaining image data for the output image. The differences between the image data of the scanne... | 06/26/2007 |
| 7221807 | Methods and systems for digital image characteristic adjustment using a neural network Embodiments of the present invention comprise methods and systems for automatically adjusting images to conform to preference data. ... | 05/22/2007 |
| 7221476 | Picture image processing apparatus and method, and picture processing system A picture image processing apparatus is provided with a hue calculating portion for calculating a hue pixel by pixel based on RGB data, a first sampling portion for sampling pixels having a hue corresponding to a skin color from the RGB data, a first characteristic ... | 05/22/2007 |
| 7219034 | System and methods for display of time-series data distribution A system and methods for displaying data distribution information for time-series data is described. The methods include computing a condensed quantile function that may be used to generate approximate histograms for the time-series data, while decreasing the data s... | 05/15/2007 |
| 7215812 | Image processing method recording medium with recorded image processing program and image processing apparatus An image processing method for carrying out predetermined correction processing with respect to one or more items regarding the quality of color images and the image processing method comprises a judgment step for judging the necessity/nonnecessity of correction wit... | 05/08/2007 |
| 7206094 | Image processing method and apparatus, and profile management method An image which has been color-converted in correspondence with the output characteristics of a printing press as a target for the purpose of proof may often be printed by a copying machine or printer. Prior to the proof, a generation history of a generated profile o... | 04/17/2007 |
| 7200263 | Background suppression and color adjustment method A Gamut Enhance Module (GME) is disclosed for applying 3 independent Tone Reproduction Curves (TRC) to each of the color components of an input image. The implementation is done via three independent and fully programmable 1D lookup tables. The input to the Gamut En... | 04/03/2007 |
| 7194143 | Method of enhancement of the visual display of images and other visual data records An digital image input, possibly being either pre-compressed or decompressed, is enhanced; its edges are preserved while any compression artifacts, like blocking and ringing, are simultaneously reduced. The enhancement method enhances images with luminance and chrom... | 03/20/2007 |
| 7190830 | Image processing method, apparatus and memory medium therefor Correction for color fog is securely achieved with limited load of processing. The RGB image data are converted into the luminance Y and the chromaticity values C1, C2, then a highlight point and a shadow point are determined and are connected to defin... | 03/13/2007 |
| 7180622 | Method and system for automatically forwarding an image product A method is disclosed of automatically forwarding hard copy image products to a designated recipient, comprising the steps of: analyzing a digital image and developing a unique ID with respect to the image based on the analysis; storing the unique ID and associated ... | 02/20/2007 |
| 7177047 | Gamut-preserving color imaging A color imaging technique includes setting a target value in a device-independent first color space and mapping the target value to a substantially complete point set in a second color space. The point set may include a plurality of points, each of which define subs... | 02/13/2007 |
| 7164511 | Distinguishing positive and negative films system and method A system and method for scanning a photographic film using a scanner automatedly identifies the film as either a positive or negative and controls the scanner settings to perform the scan accordingly. The method includes performing a pre-scan of the film, sampling a... | 01/16/2007 |
| 7130469 | Image processing apparatus, image processing method, program, recording medium, and image forming apparatus having the same An edge pixel is extracted from an input image by an edge determination section, an object image section is extracted by an object-image extraction section, and a first characteristic amount of the object image section in a first local pixel block containing a first... | 10/31/2006 |
| 7126718 | Adjustment of color appearance models A system for adjusting the representation of a device's color gamut in color appearance space, comprising performing forward mapping of sample colors from a device-dependent space to a device-independent color appearance space to obtain forward-mapped device-indepen... | 10/24/2006 |
| 7122775 | Semiconductor integrated circuit device and imaging system An AD-converted digital video data is encoded by a difference encoding method before it is outputted and such encoded digital video data is then outputted, after it is converted to gray code or to a predetermined code in which a fixed value is added. Problems solved... | 10/17/2006 |
| 7119924 | Detection and segmentation of sweeps in color graphics images A process for color graphics image processing, related to detection and segmentation of sweeps, is provided. An input graphics image is transformed into a three-dimensional histogram in an appropriate color space 104 (e.g., CIELUV). Two-dimensional histograms... | 10/10/2006 |
