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Class Information
Number: 358/3.05
Name: Facsimile and static presentation processing > Static presentation processing (e.g., processing data for printer, etc.) > Attribute control > Multi-level image reproduction (e.g., gray level reproduction) > Error diffusion in gray level or halftone generation > Adaptive error diffusion
Description: Subject matter wherein the distribution of the thresholding or quantization error is based on a property of the continuous tone or multi-level (gray level) image, results of previous thresholding or quantization, or other factors, to improve the visual representation of the reproduced gray level image using the resulting gray levels or halftones.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7626729 |
Halftoning with color error diffusion of one separation based on color error diffusion of a previous separation |
Dec. 1, 2009 |
| 7611219 |
Ejection control of quality-enhancing ink |
Nov. 3, 2009 |
| 7570392 |
Error diffusion method and apparatus using weighted vectors along a diagonal to correct for non-ideal ink ejection |
Aug. 4, 2009 |
| 7564589 |
Color error diffusion with error signal offsets |
Jul. 21, 2009 |
| 7564588 |
Image forming device, image forming method, and recording medium that provide multi-level error diffusion |
Jul. 21, 2009 |
| 7554697 |
Image forming apparatus, image forming method, and image forming program |
Jun. 30, 2009 |
| 7548346 |
Image processing apparatus and method for performing error diffusion based on density values of different color components |
Jun. 16, 2009 |
| 7532361 |
Image forming system, apparatus, and method |
May. 12, 2009 |
| 7528992 |
Image processing device and image processing method |
May. 5, 2009 |
| 7483169 |
Image processing device, image processing method, image creating device, computer software and record medium |
Jan. 27, 2009 |
| 7480078 |
Method and system for performing multi-pixel parallel error diffusion enabling high-speed diffusion processing without increasing the system clock rate |
Jan. 20, 2009 |
| 7468814 |
Algorithm for controlling half toning process |
Dec. 23, 2008 |
| 7466465 |
Load allocation when executing image processing using parallel processing |
Dec. 16, 2008 |
| 7463387 |
Multilevel value output device |
Dec. 9, 2008 |
| 7460285 |
Load allocation when executing image processing using parallel processing |
Dec. 2, 2008 |
| 7460272 |
Image processing apparatus, image processing method, and image processing program |
Dec. 2, 2008 |
| 7460275 |
Odd/even error diffusion filter |
Dec. 2, 2008 |
| 7457002 |
Reverse diffusion digital halftone quantization |
Nov. 25, 2008 |
| 7446903 |
Image processing device |
Nov. 4, 2008 |
| 7443542 |
Method and apparatus for determining error diffusion coefficients |
Oct. 28, 2008 |
| 7420708 |
Method for processing color image data employing a stamp field |
Sep. 2, 2008 |
| 7417771 |
Error diffusion halftoning system |
Aug. 26, 2008 |
| 7414756 |
Image processing apparatus for converting image data by unit of multiple pixels and printing apparatus |
Aug. 19, 2008 |
| 7369276 |
Multi-level halftoning providing improved texture uniformity |
May. 6, 2008 |
| 7362472 |
Color error diffusion |
Apr. 22, 2008 |
| 7355747 |
System for improving the speed of data processing |
Apr. 8, 2008 |
| 7339706 |
Error diffusion processing circuit for an image signal which improves an output image |
Mar. 4, 2008 |
| 7336398 |
Error prediction method for halftone processing |
Feb. 26, 2008 |
| 7333244 |
Method and system for embedding an image into two other images |
Feb. 19, 2008 |
| 7333243 |
Calculating error diffusion errors to minimize memory accesses |
Feb. 19, 2008 |
| 7319549 |
Multiple weight error diffusion |
Jan. 15, 2008 |
| 7317556 |
Method for error diffusion employing a stamp field |
Jan. 8, 2008 |
| 7315398 |
Multi-level error diffusion with color image data |
Jan. 1, 2008 |
| 7315401 |
Quantization apparatus and method, and inkjet printing apparatus using the same |
Jan. 1, 2008 |
| 7315395 |
Image processing apparatus, image processing method, program for implementing the method, and storage medium |
Jan. 1, 2008 |
| 7295347 |
Image processing method for generating multi-level data |
Nov. 13, 2007 |
| 7280259 |
Method for printing a color proof using a spatial filter |
Oct. 9, 2007 |
| 7280252 |
Error diffusion of multiresolutional representations |
Oct. 9, 2007 |
| 7268919 |
Image data processing apparatus, method, and program that diffuses gradiation error for each pixel in target block |
Sep. 11, 2007 |
| 7265874 |
Image processing apparatus and method |
Sep. 4, 2007 |
| 7253926 |
Image-processing apparatus, method and program for outputting an image to a plurality of functions |
Aug. 7, 2007 |
| 7236269 |
System and method for dithering with reduced memory |
Jun. 26, 2007 |
| 7230740 |
Substantial preclusion of output of pixels for other color components upon output of pixel for image pixel color component |
Jun. 12, 2007 |
| 7224487 |
Ink reduction error diffusion |
May. 29, 2007 |
| 7218416 |
Image processing apparatus and method |
May. 15, 2007 |
| 7196821 |
Image processing device, printing control device, image processing method, and recorded medium |
Mar. 27, 2007 |
| 7177051 |
Halftoning method and apparatus, and computer-readable recording medium in which halftoning program is recorded |
Feb. 13, 2007 |
| 7170636 |
Image processing apparatus and its control method |
Jan. 30, 2007 |
| 7167278 |
Image processing apparatus, image processing method, program for implementing the method |
Jan. 23, 2007 |
| 7164502 |
Image processing method, and image processor and storage medium thereof |
Jan. 16, 2007 |
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