Matches 151 - 200 out of 235 < 1 2 3 4 5 >
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6204853 4D KAPPA5 Gaussian noise reduction  
The noise reduction system of the present invention takes into account that noise is random with little between images adjacent physically, and in sampling time. It also takes into account the fact...
6192152 Image processing apparatus  
An image processing apparatus includes a first detection unit for detecting an edge of an input image on the basis of an input image signal, a second detection unit for detecting a screen portion...
6181437 Image processing apparatus capable of producing images without jaggies at edges  
Image data for continuous three pixels delayed by one pixel from each other is input in row and column directions from an image input portion into a scanning window. A predetermined image pattern...
6178264 Image cutout method and apparatus  
An object of the present invention is to provide an image cutout method capable of moving a nozzle on a photographic image along a contour of a subject and binarizing image data in the nozzle to...
6173085 Edge enhancement using modified edge boost function  
A method of edge enhancing a digital image having pixels, includes acquiring a digital image; computing an edge boost function having positive and negative boost for different portions of the edge...
6167166 Method to enable the recognition and rendering of antialiased images  
The present invention is a method for antialiased rendering (AAR) of an image. First, tagging methods for identifying antialiased pixels were described, the methods being employed separately or in...
6154576 System and method for anti-aliasing of text overlays on electronic images  
A system and method for anti-aliasing of text overlays on electronic images comprises a text-font manager for loading background color and selected font data which includes font type, font size,...
6154577 Digital image processing method and computer program product  
A digital image processing method for detecting when and where an image has been altered or modified includes the steps of generating an edge map of an original digital image; convolving the edge...
6137918 Memory efficient method and apparatus to enable tagging of thin antialiased lines  
The present invention is a method for efficiently processing an image to detect antialiased pixels using reduced buffering memory. The method stores, in a scanline buffer memory, a predefined...
6091862 Pixel interpolation device and pixel interpolation method  
A method and apparatus for pixel interpolation performed on color separated image data which is obtained from a Bayer array or like sensor. The slopes of pixel values are computed in two or more...
6075904 Image processing apparatus and method which prevents the generation of a white stripe on an output image  
An image processing apparatus for color-correcting image data for outputting to image forming means includes an input unit for inputting image data, a discrimination unit for determining whether or...
6075894 High-quality edge-smoothing based upon a determination of consecutive black dots  
An image processing method and an apparatus capable of employing the method, which smooth notches on outlines and output an image of high quality having smooth outlines. First, edges to be smoothed...
6061145 Image processing apparatus and method using dot patterns  
The present invention relates to an image processing method and an image processing apparatus, and an object thereof is to improve resolution and also suppress indention of contour, thereby...
6061151 Image processing method and apparatus  
An image processing apparatus includes an input unit for inputting image data having a plurality of pixels and representing whether each pixel is a white/black pixel, and a processing unit for...
6038031 3D graphics object copying with reduced edge artifacts  
A system and method for performing 3D graphics copying operations in such a manner as to produce both a smooth image and smooth edges. The alpha value of each pixel is used to mark the pixels which...
6038039 Character smoothing in scanners/printers  
A scanner/printer system for smoothing the edges of text or line art is described having a copyboard for an image original, a CCD, a PCI bus, edge smooth software and a laser printer. The edge...
6023535 Methods and systems for reproducing a high resolution image from sample data  
The current invention discloses methods of and systems for reproducing an original two dimensional image from data sampled at a low resolution. The data is sampled at the same frequency but at...
5999659 Apparatus and method for smoothing the lines drawn by a user at a computer  
A pen-based computer in which the lines drawn by a user are anti-aliased incrementally by applying a smoothing filter to the relatively high resolution pen sensor image and subsampling the result...
5999658 Image tone interpolation method and apparatus therefor  
All possible image levels of image data are input to tone conversion characteristics, and a tone jump included in the image after tone conversion is detected from the resultant output data. An...
5995658 Image processing device and image output device converting binary image into multi-valued image  
An image processing device converting a binary image into multi-valued output image includes an image-area-separation processing unit detecting shadow areas in the binary image, wherein the shadow...
5982940 Image data processing device and method of processing image data  
A plurality of regions are set for input image data formed of a plurality of pixels. A characteristic parameter for each region is extracted in accordance with a state of distribution in each...
5966506 Method for printing electronically sharpened images  
A method of printing an image with an electronically sharpened edge. The method uses an image writing medium to form an image on a substrate. The image is printed using a range of writing medium...
5966475 System for enlarging and smoothing textual characters  
Described above is a method of enlarging a character that is represented by a reference pattern of pixels. The method includes a step of converting pixels of the reference pattern to corresponding...
5956470 Text quality enhancement via resolution enhancement technique based on separating jaggedness detection and filtering  
A method of separating the detection of text/line jaggedness via a resolution enhancement filter from the actual operation of smoothing image jaggedness or flaws is presented. The advantage of this...
5933540 Filter system and method for efficiently suppressing noise and improving edge definition in a digitized image  
A filter system and associated method efficiently suppress noise and improve edge definition in a digitized image. The filter system has a statistical noise determination mechanism which initially...
5926577 Video signal processing apparatus with noise reduction and edge enhancement  
A video signal processing circuit for processing a video signal including a noise is disclosed which comprises: an edge enhancement signal generation circuit for generating an edge enhancement...
5920646 Digital copying apparatus capable of forming a superior quality image with a reduced amount of memory  
A digital copying apparatus provides high quality copy images suitable for an original document image while reducing a necessary capacity of a memory for storing image data. An image signal read by...
5920648 Image processing method and apparatus which replace horizontal and vertical vectors with an inclined vector  
At step 1 in the flowchart of FIG. 1, multi-valued image data representing an image are read. After the image data are sliced at luminance values of 0 through 255 at step 2, boundary contours are...
5920356 Coding parameter adaptive transform artifact reduction process  
A post-processor for a decoded video sequence includes a digital noise reduction unit and an artifact reduction unit which significantly reduce blocking artifacts and mosquito noise in a video...
5907665 Method and apparatus for transforming image data  
A method for transforming grayscale image data in accordance with preselected transformation factors may be accomplished by first reducing the number of gray image pixels by "punching to black"...
5896489 Electrophotographic printer  
An electrophotographic printer including feature extraction means 12 for judging on the basis of pattern matching whether a reference area generated by area generating means 11 is an image which...
5875268 Image processing with low-resolution to high-resolution conversion  
An image processing apparatus for converting low-resolution information to high-resolution information and increasing the number of pixels of input image information by a factor of (N×M) includes...
5872868 Technique for generating and storing edge phase information for rendering text and lineart in hyperacuity printers  
A PDL or other type of line drawing program mathematically generates an edge between white and black regions. For curved edges, the edge is transformed into a plurality of piecewise linear edge...
5870504 High speed outline smoothing method and apparatus including the operation of shifting bits of the current, preceding, and succeeding lines left and right  
OCR processing involves: acquisition of images from image capturing devices; determination of location/size/style for each character; normalization; smoothing for large corners; smoothing by the...
5867142 System and method for processing an image having edges  
A method of processing an image to reduce false granularity, or "aliasing", resulting from the reproduction of edges using fixed size pixels. In the preferred embodiment of the invention, certain...
5850293 Image processor having a discriminator for discriminating an inside area and an outside area  
A digital image of a document having chromatic and achromatic colors is read, and an edge of a black character is discriminated. Further, an outside area and an inside area of the edge are...
5838298 Image processing apparatus and method for smoothing stairway-like portions of a contour line of an image  
An image processing apparatus for smoothly drawing and outputting a contour line of a graphic image includes: an input device to input an image; a memory to store the image input by the input...
5835640 Method and apparatus for identifying and fixing horizontal and vertical lines in digitized images  
Apparatuses and methods are provided for locating and straightening horizontal and vertical lines in digitized documents by first identifying horizontal or vertical elements, each of which may...
5825938 System and method for enhancing the sharpness of a colour image  
A color image is locally discoloured in the vicinity of edges. The edges extend, for example, between a superposed foreground and a background in a computer-generated image, but also between...
5818972 Method and apparatus for enhancing images using helper signals  
A system for, and method of, enhancing a digitized image signal according to a helper signal architecture are described. The architecture includes an analysis filter, responsive to a digitized...
5815605 Image processing system and method  
An image processing method of the invention is used for dividing each pixel of binary image data into pixels, with of the pixels having a size smaller than each pixel of the binary image data. The...
5812742 Apparatus and method for processing two-tone image data so as to smooth image and convert each image pixel into a plurality of pixels  
An apparatus processes two-tone image data so as to magnify a relevant image and smooth a boundary line between a zone consisting of first-tone pixels of two-tone pixels constituting the relevant...
5793936 Center-line anti-aliasing for digital printing  
A method of eliminating the effects of aliasing when printing objects having opposing edges. A center line between the opposing edges is identified. (FIG. 3). "Opposing pixels" on the edges are...
5778105 Method of and apparatus for removing artifacts from a reproduction  
A method of and system for reducing aliasing effects in a digital reproduction of an original image are disclosed. A first set of pixels extending along a first direction in the digital...
5771318 Adaptive edge-preserving smoothing filter  
An adaptive edge-preserving smoothing filter effectively reduces noise levels while preserving fine structures in data. The behavior of the filter is controlled easily by two control parameters. To...
5771107 Image processor with image edge emphasizing capability  
An image processor is provided which emphasis-processes an image to be copied with attention to the detection of black edges so that clear color copy outputs are obtained. R, G and B data read out...
5754697 Selective document image data compression technique  
A method of storing information from filled-in form-documents comprises extracting the unique user information in the foreground from the document form information in the background. The contrast...
5719967 Iimage processing apparatus  
An image processing apparatus capable of generating multivalue image data to be reproduced by a laser printer and the like as a hard copy having high visual quality. A first character/line drawing...
5719595 Method and apparauts for generating a text image on a display with anti-aliasing effect  
A method for generating an image having anti-aliasing effect for display on a display system is described. An outline of the image is first generated. The outline includes a plurality of outline...
5703968 Method and apparatus for detecting interpolation line  
A level difference of an upper pixel on an upper scanning line placed over an attentional pixel and a lower pixel on a lower scanning line placed under the attentional pixel, a level difference of...
Matches 151 - 200 out of 235 < 1 2 3 4 5 >