Issued Patents All Time
Showing 1–25 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7822290 | System and method for processing images with leaky windows | Zhigang Fan, Stuart A. Schweid | 2010-10-26 |
| 7753466 | Device for manufacturing color printing and method using same | — | 2010-07-13 |
| 7724955 | Apparatus and method for auto windowing using multiple white thresholds | David J. Metcalfe | 2010-05-25 |
| 7545540 | Method and system for processing color image data | — | 2009-06-09 |
| 7421143 | Systems and methods for optimal dynamic range adjustment of scanned images | Xing Li, Stuart A. Schweid | 2008-09-02 |
| 7277191 | Fast efficient window region coalescing in a two-pass auto-windowing environment | David J. Metcalfe | 2007-10-02 |
| 7239430 | Binary halftone detection | Ying-wei Lin | 2007-07-03 |
| 7009739 | Color to black and white converter | Ying-wei Lin | 2006-03-07 |
| 6947597 | Soft picture/graphics classification system and method | Ying-wei Lin, Stuart A. Schweid, Raja Bala, Zhigang Fan | 2005-09-20 |
| 6631215 | Method and apparatus for implementing integrated cavity effect correction in scanners | Raymond J. Clark, Stuart A. Schweid, Terri A. Clingerman | 2003-10-07 |
| 6549658 | Method and system for classifying and processing of pixels of image data | Stuart A. Schweid | 2003-04-15 |
| 6535633 | Method and apparatus for re-classifying color image pixels classified by single channel segmentation | Stuart A. Schweid | 2003-03-18 |
| 6529291 | Fuzzy black color conversion using weighted outputs and matched tables | Stuart A. Schweid, Zhigang Fan | 2003-03-04 |
| 6525845 | Methods and apparatus for modifying image data based on identification of marking process | Gaurav Sharma, Stuart A. Schweid | 2003-02-25 |
| 6427030 | Method and system for image conversion utilizing dynamic error diffusion | Leon C. Williams, David J. Metcalfe | 2002-07-30 |
| 6347153 | Method and system for classifying and processing of pixels of image data | Roger L. Triplett, Raymond J. Clark | 2002-02-12 |
| 6347159 | Method and system for processing image information using screening and error diffusion | Leon C. Williams, David J. Metcalfe | 2002-02-12 |
| 6249357 | System and apparatus for tonal reproduction curve adjustment in a hybrid error diffusion process | David J. Metcalfe | 2001-06-19 |
| 6240205 | Apparatus and method for segmenting and classifying image data | Zhigang Fan, Kathy Ryall, Shriram V. Revankar | 2001-05-29 |
| 6229923 | Method and system for classifying and processing of pixels of image data | Leon C. Williams, Raymond J. Clark | 2001-05-08 |
| 6222642 | System and method for eliminating background pixels from a scanned image | Barbara L. Farrell | 2001-04-24 |
| 6201613 | Automatic image enhancement of halftone and continuous tone images | Yeqing Zhang, Martin E. Banton | 2001-03-13 |
| 6185328 | Method and system for classifying and processing of pixels of image data | — | 2001-02-06 |
| 6181829 | Method and system for classifying and processing of pixels of image data | Raymond J. Clark, Leon C. Williams, Stuart A. Schweid | 2001-01-30 |
| 6175427 | System and method of tonal correction of independent regions on a compound document | Donald R. Lehmbeck, Leon C. Williams | 2001-01-16 |