Issued Patents All Time
Showing 26–50 of 110 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8085436 | Digital printing using similar colorants | Douglas W. Couwenhoven | 2011-12-27 |
| 8085435 | Adaptive color transform to control color inconstancy | Christopher R. Hauf, Douglas W. Couwenhoven | 2011-12-27 |
| 8018623 | Multi-level halftoning providing reduced error diffusion artifacts | Douglas W. Couwenhoven | 2011-09-13 |
| 7982916 | Color error diffusion with error signal offset | Douglas W. Couwenhoven | 2011-07-19 |
| 7873231 | Determining sharpness predictors for digital images | Theodore F. Bouk, Amy D. Enge | 2011-01-18 |
| 7840084 | Digital camera incorporating a sharpness predictor | Theodore F. Bouk, Amy D. Enge | 2010-11-23 |
| 7764844 | Determining sharpness predictors for a digital image | Theodore F. Bouk, Amy D. Enge | 2010-07-27 |
| 7751083 | Scanner metamerism correction | David Wayne Jasinski, James A. Reczek | 2010-07-06 |
| 7715043 | Multilevel print masking method | Steven A. Billow, Douglas W. Couwenhoven, Richard C. Reem | 2010-05-11 |
| 7652795 | Reducing ink bleed artifacts | Douglas W. Couwenhoven, Gustav Braun | 2010-01-26 |
| 7583406 | Color transforms for concave device gamuts | Gustav Braun | 2009-09-01 |
| 7570829 | Selection of alternative image processing operations to maintain high image quality | Raymond W. Ptucha, William V. Fintel, Andrew C. Gallagher, Edward B. Gindele, Jeffrey C. Snyder | 2009-08-04 |
| 7564589 | Color error diffusion with error signal offsets | Douglas W. Couwenhoven | 2009-07-21 |
| 7535596 | Colorant control values for color printing devices | Gustav Braun, John R. D'Errico | 2009-05-19 |
| 7428332 | Applying an adjusted image enhancement algorithm to a digital image | Raymond W. Ptucha, Edward B. Gindele, Andrew C. Gallagher | 2008-09-23 |
| 7369276 | Multi-level halftoning providing improved texture uniformity | Douglas W. Couwenhoven, Gustav Braun | 2008-05-06 |
| 7365879 | Determining sets of n-dimensional colorant control signals | Gustav Braun, John R. D'Errico, Douglas W. Couwenhoven | 2008-04-29 |
| 7362472 | Color error diffusion | Douglas W. Couwenhoven | 2008-04-22 |
| 7308135 | Constructing extended color gamut digital images from limited color gamut digital images | Andrew C. Gallagher, Edward B. Gindele, Raymond W. Ptucha | 2007-12-11 |
| 7298892 | Producing a balanced digital color image having minimal color errors | Geoffrey J. Woolfe, Edward J. Giorgianni | 2007-11-20 |
| 7289663 | Producing an extended color gamut luminance-chrominance digital image from a captured image | Kenneth A. Parulski, Wayne E. Prentice | 2007-10-30 |
| 7245395 | Calibrating a digital printer using a cost function | Douglas W. Couwenhoven, Gustav Braun, Geoffrey J. Woolfe | 2007-07-17 |
| 7239422 | Color gamut mapping using a cost function | Gustav Braun, Douglas W. Couwenhoven, Geoffrey J. Woolfe | 2007-07-03 |
| 7234791 | Reducing ink bleed artifacts | Douglas W. Couwenhoven | 2007-06-26 |
| 7196817 | Printing of digital images using reduced colorant amounts while preserving perceived color | Douglas W. Couwenhoven | 2007-03-27 |