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| Number | Title | Issue Date |
| 5301038 | Image processor and method for processing pixel data An image processor has image processing logic for detecting pixel data representing stepped chrominance or luminance transitions characteristic of staircase aliasing in a source image and for producing an output image including selective antialiasing on t... | 04/05/1994 |
| 5293579 | Method and apparatus for smoothing jagged edges in a graphics display A method and apparatus for detection and smoothing of jagged edges in a graphics display is described. The edge detection and smoothing is done using only a pixel-map representation of the pixel colors of the image as input. Edges are detected based upon ... | 03/08/1994 |
| 5255365 | Method and apparatus for compacting digital time series data for display on a digital oscilloscope The method and apparatus provide for data compaction of time series data for display on a digital oscilloscope when the resolution M of the display screen is much smaller than N, the number of data points. All extreme data excursions are displayed and the... | 10/19/1993 |
| 5250934 | Method and apparatus for thinning printed images A method and apparatus are shown for improving bit-image quality in video display terminals and xerographic processors. In one embodiment, each scan line of a source image is ANDed with the scan line above to remove half-bits and thin halftones. In other ... | 10/05/1993 |
| 5249242 | Method for enhancing raster pixel data Briefly, the invention provides a method of enhancing pixel data from a raster image to improve the appearance of the rendered image by modifying morphological artifacts which normally occur in raster image systems. The method commences by applying a wind... | 09/28/1993 |
| 5222154 | System and method for spot color extraction A system and method for finding areas of similar color in electronically captured spot color images and replacing the similar colors with a single dominant color. An original image is first prescanned at low resolution to generate an electronic image. Usi... | 06/22/1993 |
| 5218649 | Image enhancement system A system for enhancing the quality of an image that suffers from staircase effects, contouring effects, and granular noise, without affecting the existing method of creating the image is disclosed. The enhancement system identifies the edge and nonedge re... | 06/08/1993 |
| 5091973 | Image processing apparatus for reducing visible roughness in contours An image processing apparatus performs processing to input an original image pattern composed of dots, detect contour dots from the inputted original image pattern, and identify a pattern of dot rows formed by the contour dots detected. Editing is perform... | 02/25/1992 |
| 5050227 | Method of and apparatus for image smoothing along a tangential direction of a contour Smoothing in a tangential direction of a contour and detail enhancement in its perpendicular direction are simultaneously achieved with spatial filters having prescribed weighing factor distribution. An area including a contour is first designated, and a ... | 09/17/1991 |
| 5020119 | System for producing serrated, alternating pixel pattern on character boundaries An image processing system for converting gray level, digital, pixel information into binary data. Pixels with digital values close to the threshold value are further processed to determine the binary value to be specified for that pixel. In such cases, t... | 05/28/1991 |
| 4831447 | Method and apparatus for anti-aliasing an image boundary during video special effects A method of processing a foreground array of sample values, a background array of sample values and a crop array of sample values, which three arrays are coextensive and wherein the crop array represents a geometrical figure associated with a non-zero mul... | 05/16/1989 |
| 4791679 | Image character enhancement using a stroke strengthening kernal Character stroke is strengthened by processing video image data with a 16×16 kernal, and moving the kernal one pixel at a time through the image. For each pixel position, sections of the kernal, are selectively filled with black pixels in proportion to t... | 12/13/1988 |
| 4771471 | Smoothing method for binary-coded image data and apparatus therefor Disclosed herein is a method and apparatus for processing binary-coded image data. A peripheral picture element region of a predetermined size is set up around a target picture element which is to be processed. Logical windows are established around their... | 09/13/1988 |
| 4760605 | Image signal processing with filtering to account for image mapping An image signal processing apparatus comprises a memory (12) and an address generator (14) that generates addresses for allocation to successive words of a digital input signal (10) representing an input image for mapping those words (or words obtained by... | 07/26/1988 |
| 4703363 | Apparatus for smoothing jagged border lines Jagged border lines between image components of a reproduction image or the image of a display are smoothed visually at first by giving weight coefficients to a center pixel and the surrounding pixels thereof, and then by obtaining values for designating ... | 10/27/1987 |
| 4611349 | Halftone image scaling A method of enlarging or reducing the size of a halftone one bit per pixel raster image without changing the screen pitch is disclosed. First, there is a determination of whether the current byte is on an image edge using any edge detection means. If the ... | 09/09/1986 |
| 4184206 | Subpixel X-Y coordinate encoding A technique of encoding digitized video input signals to an arrayed display memory in a manner to maximize the probability of entering the best picture element (pixel) value into a particular X,Y location by effectively dividing a pixel area into an array... | 01/15/1980 |
