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7620260 |
Line thinning method and system for grayscale image
A line thinning algorithm (LTA) for a grayscale input image, wherein the LTA is a separable algorithm that performs on each row of input grayscale image sequentially from top to bottom and...
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7590268 |
Method and apparatus for representing an area of a raster image by a centerline
One embodiment of the present invention provides a system that can represent an area of a raster image by a centerline. During operation, the system receives a planar map which represents a raster...
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7489314 |
Drawing device, drawing method, and storage medium
A drawing device which outputs an image datum based on a drawing mode and a command to draw, includes a coordinate conversion unit which converts coordinates in the command to draw in accordance...
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7480413 |
Image processing device
An image processing device is structured such that an appropriate judgement of an image, at which blurring or disappearance or the like will occur, is possible. When pixels, which form a line image...
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7460280 |
Image-reading apparatus for reading an image on a document by controlling an index period and a line-thinning rate based on a magnification factor
An image-reading apparatus reads an image on a document by controlling a main-scanning operation in accordance with an index period, a sub-scanning operation in accordance with a line-thinning...
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7443538 |
Method of controlling printed line quality
A printer embodied rendering algorithm for detecting and configuring positive and negative thin lines to be rendered such that when a bright-colored thin line on a dark background (negative thin...
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7408672 |
Image processing apparatus, image forming apparatus and image forming method
When a print key on a console panel is depressed, a main CPU confirms enlargement/reduction rate information input via the console panel, and then, performs line thinning by setting a line thinning...
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7359553 |
Image identification system
Methods and procedures for improving the performance and reliability of image analysis within an image identification system include a series of image qualification functions designed to quickly...
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7292356 |
Printing with reduced outline bleeding
The present invention is a printing method of recording an image by forming ink dots on a print medium in one of a plurality of print modes. The method determines the reduction pattern in response...
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7269294 |
Foreground erosion method and system for Multiple Raster Content (MRC) representation of documents
A foreground erosion method is used to meet thin (but unbroken) text requirements using linear YCC segmentation. The method uses a fixed value subtracted from a gray selector signal, thereby...
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7239908 |
Assessing the condition of a joint and devising treatment
Methods are disclosed for assessing the condition of a cartilage in a joint, particularly a human knee. The methods include converting an image such as an MRI to a three dimensional map of the...
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7209260 |
Image processing apparatus
The object of the present invention is to use the same FIFO line memory for both enlargement and reduction during variable-magnification processing in the scan direction, allowing reduction in...
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7199888 |
Method for enhanced black in draft mode
A method of improving black print quality in a color printer having at least one color ink and black ink includes determining a location on a substrate where a black pixel is to be printed,...
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7194142 |
Selective thickening of dark features by biased sharpening filters
Processing of a pixel of a digital image includes sharpening a digital image, while boldening dark features in the digital image as a non-decreasing function of local contrast.
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7173660 |
Method for displaying an information image on a screen
For an image to be displayed on a liquid crystal display, a thinning process is executed to reduce a number of pixels constructing the image. An original image of an information image is produced...
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7164430 |
Anti-aliasing line pixel coverage calculation using programmable shader
A system and method for rendering a non-zero thickness line on a pixel-limited output device such that aliasing of the line is reduced. The edges defining a line segment are expanded to insure that...
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7106330 |
Drawing comparison apparatus
After thinning an input image (drawing), a primitive is extracted. First, a rough primitive is extracted, and then the rough primitive becomes a primitive in a merge-split process according to a...
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7088459 |
Method and system for providing a copy of a printed page
A method for providing a copy of a page from a printed document, the document including coded data indicative of an identity of the document and of a plurality of reference points on the document,...
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7064862 |
Printer and printing method for image-quality correction
A printer performs printing after appropriately correcting irregularities, thin-line patchiness, and isolated pixels. A first image-quality corrector unit detects slanting-line irregularities...
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7064759 |
Methods and apparatus for displaying a frame with contrasting text
An area within a frame is defined in which text or an image is to be generated. The text or image may also include an optional border surrounding and adjacent to the text or image. In accordance...
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7050634 |
Method, program product, and device for detecting branch point of random line pattern
By a method of detecting a branch point, the branch point in a random line pattern of neovascularization or the like is detected accurately and efficiently. After a binary image is obtained from an...
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7034956 |
Image processing apparatus capable of freely varying aspect ratio, and image forming apparatus using the same
The image processing apparatus outputs both of first image data used to produce a photo-print and second image data used to produce an image file in accordance with the digital image data. The...
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7024634 |
Display control system causing image on display screen to disappear and reappear in a friendly manner to user
The present invention provides a display control system for controlling data which is displayed on a screen of a display unit. The system includes a pointing device for pointing to a position on...
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RE38718 |
Embroidery data creating device
Disclosed is an embroidery data creating device for creating an embroidery data to be used by a sewing machine. In the embroidery data creating device, an image data, which consists of a plurality...
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6813381 |
Method and apparatus for identification of documents, and computer product
In the document identification apparatus, a ruled line feature extraction section determines a black pixel ratio of a document to be identified, and adds the black pixel ratio for each block to...
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6782130 |
Rendering of photorealistic computer graphics images
A method, apparatus, and system are provided for rendering of photorealistic computer graphics images. According to one embodiment, an image is partitioned into regions, each of the regions having...
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6775418 |
Image processing device and processing method
An image processing device detects the correlation between a pixel to be removed in thinning pixel blocks generated by using a delay in horizontal and vertical directions and an adjacent pixel. The...
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6763127 |
Apparatus and method for fingerprint recognition system
A fingerprint recognition method includes iterative gamma correction that compensates moisture effect, feature extraction operations, directional morphological filtering that effectively links...
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6738152 |
Event-based printing
Methods and apparatus implementing a technique for printing to a selected destination in a computer system. A centralized print manager provides the implementation and control of operation for...
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6707953 |
Image processing apparatus interpolating thin line included in input image data
In order to correct a thin line to be thin and dense and to prevent the thin line from becoming patchy after binarization of image data without specifying the thin line from image data, an image...
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6681053 |
Method and apparatus for improving the definition of black and white text and graphics on a color matrix digital display device
A digital signal processing (DSP) method to process rendered text in order to achieve up to 300% of the horizontal resolution on any suitable digital display devices such as LCD, PDP and DLP. When...
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6671395 |
Document image processing with stroke preservation and background suppression
A method for improved readability of digitally captured document images that include printed or handwritten textual material overlaid on background graphics. Text in the document is generally...
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6671070 |
Coverage-area gain compensation for high resolution printing
A method of and system for compensating artwork for coverage gain that occurs during reproducing of the artwork on a reproduction system. The artwork includes one or more graphic elements. The...
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6628840 |
Boundary mapping for multi-pel thickness lines
A method for mapping a boundary for a multi-pel thickness line into a bitmap image which describes the pel boundary with respect to an orthogonal pel array. The line has thickness T centered around...
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6546156 |
Image processing device
An image processing device having an improved image processing speed and capable of detecting an object at high speed. Where frames are thinned out for real-time processing during frame processing...
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6516097 |
Image segmentation system
In a system for segmenting a pixel based image, pixels containing image boundaries are identified. The image boundaries are then fattened by repeatedly adding fattening rows of pixels to the pixels...
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6504953 |
Method for the automatic removal of image errors
In a method for automatic removal of image errors in digital image data, for example which have arisen due to scratches, hairs, etc., a contour mask is generated with a contour filter and a color...
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6490375 |
Methods for finding peaks in a characteristic surface of an image
An efficient and reliable method that identifies possible reference sites in an image is disclosed. The method emphasizes customizing the identification of reference sites for each application by...
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6411733 |
Method and apparatus for separating document image object types
A method and apparatus is provided for segmenting a binary document image so as to assign image objects to one of three types: CHARACTER-type objects, STROKE-type objects, and LARGE-BITMAP-type...
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6377710 |
Method and apparatus for extracting the skeleton of a binary figure by contour-based erosion
A method and apparatus for performing thinning, or skeletonization, of binary images or figures are provided. More particularly, a method is implemented in a system for encoding a figure using a...
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6356648 |
Embroidery data processor
An embroidery data processor includes: a thinning unit that reduces thickness of lines in the image data to produce thin-line image data including at least one thin-line outline defining a bounded...
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6298156 |
Image processing apparatus and method
An edge vector extraction unit (122) extracts edge vectors from an input image, and a variable-magnification processing unit (123) performs smoothing/variable-magnification processing of the edge...
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6266070 |
Character pattern generator, character generating method, and storage medium therefor
A character pattern generator includes: an input section for inputting an input information that contains a character code, a character style, and a character size of a character pattern to be...
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6259821 |
PDL operator overloading for line width management of lines that intersect filled objects
A method and apparatus for overloading operators in Page Description Language (PDL) defined graphics redefines the graphic, such as to compensate for certain undesirable line growth characteristics...
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6259535 |
Print image-forming method and device
There are provided a print image-forming method and device. Print image data of a dot matrix is formed in which print portions are represented by positive dots and blank portions are represented by...
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6181438 |
Method and apparatus for digital image darkness control using quantized fractional pixels
A method and apparatus for the control of darkness/lightness in a digital image rendered by a printing system. The technique preferably employs templates to selectively apply different amounts of...
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6154575 |
Image thickening processing method and apparatus
In an image thickening processing method, a thickening processing is carried out on a binary image made up of black picture elements and white picture elements, which are adjacent to one another...
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6134340 |
Fingerprint feature correlator
A device, and a method for its operation, for verifying a person's identity by comparing in a correlator (18) selected features of a reference fingerprint image, generated in a sensor (10) from the...
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6130966 |
Image processing system and method for converting an input N-valued (N>or-Z) image into an M-valued (M>N) image
A facsimile apparatus contains transfer modes such as a standard mode, a fine image quality mode, a super fine image quality mode which are different from one another in resolution. A signal...
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6005989 |
Method for modifying the resolution of a digitized image
In a method for modifying the resolution of an image obtained by digitising a real image, the digitised image includes a plurality of pixels of a particular intensity. The outlines in the digitised...
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