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Class Information
Number: 358/3.13
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) > Halftoning (e.g., a pattern of print elements used to represent a gray level) > Dithering (e.g., spatial distribution of print elements by threshold matrix)
Description: Subject matter wherein the pattern or distribution of print elements forming a halftone pattern is determined by comparing a discrete density value (gray level) to an array of threshold values.

Sub-classes under this class:

Class Number Class Name Patents
358/3.14 Adaptive dithering 215
358/3.16 Ordered dithering (e.g., deterministic or systematic) 112
358/3.19 Stochastic or random dithering 132

Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
8711436 Tint block image generation program and tint block image generation device Apr. 29, 2014
8705128 Image processing device, printing device, image processing method, and image processing program Apr. 22, 2014
8705133 High dynamic range display systems Apr. 22, 2014
8693054 Mask generation mechanism Apr. 8, 2014
8687240 Image processing apparatus and control method for performing screen processing Apr. 1, 2014
8681379 Image processing apparatus, system, and method Mar. 25, 2014
8681383 2.sup.nd generation dot-off-dot stochastic halftone Mar. 25, 2014
8675251 Multilevel printing process and device using a raster bitmap and assignment method for multilevel screens Mar. 18, 2014
8659801 Image forming apparatus and image forming method determining correct pixel value of target pixel subject to interpolation Feb. 25, 2014
8649062 Image processor Feb. 11, 2014
8643904 Image processing device selecting halftone method for each set of pixel data of image data Feb. 4, 2014
8625163 Selecting dither matrix based upon determination of toner Jan. 7, 2014
8614832 Dynamic image dithering Dec. 24, 2013
8576267 Optical writing device, image forming apparatus, optical writing method, and computer-readable recording medium Nov. 5, 2013
8576456 Secondary scan to ensure transient document erasure Nov. 5, 2013
8570575 Image forming apparatus, method of controlling the same, and image processing apparatus performing image formation on the basis of a plurality of pieces of image data for different colors Oct. 29, 2013
8559083 Image forming apparatus in which intermediate gradation reproducibility is enhanced Oct. 15, 2013
8559082 Image processing apparatus for gamma conversion of image data Oct. 15, 2013
8542408 High dynamic range display systems Sep. 24, 2013
8542409 Printing apparatus, printing method and method of generating dither mask Sep. 24, 2013
8537412 Printing control device Sep. 17, 2013
8503033 Method for manufacturing printing device Aug. 6, 2013
8503035 Image forming apparatus and image forming system Aug. 6, 2013
8498013 Fluid ejection device, program, and fluid ejection method Jul. 30, 2013
8498020 Image processing apparatus, image forming apparatus, and image processing method Jul. 30, 2013
8493625 Determining composite color for dithered object and contone object Jul. 23, 2013
8482801 Storage of stamp information for error diffusion Jul. 9, 2013
8482826 Image processing apparatus, printing apparatus and image processing method Jul. 9, 2013
8471864 Image processor and image processing method employing a dither pattern having sub-dither patterns Jun. 25, 2013
8472082 Image processing device with compensation for a focal point shift of the print head Jun. 25, 2013
8467102 Image forming apparatus and image correction method for correcting scan-line position error Jun. 18, 2013
8467101 Image forming apparatus for adjusting dot size Jun. 18, 2013
8462390 Image processing method and apparatus Jun. 11, 2013
8451288 Image signal processing apparatus May. 28, 2013
8451289 Systems and methods for dither structure creation and application May. 28, 2013
8441692 Image processing apparatus, image forming apparatus, image processing method and computer readable medium May. 14, 2013
8437046 Image processing apparatus and method for outputting an image subjected to pseudo-halftone processing May. 7, 2013
8437045 Bitmapped based trapping methods, apparatus and system by modifying non-black halftone pixel bitmap plane using estimated continuous tone value May. 7, 2013
8422079 Image forming apparatus and image correction method for correcting scan-line position error with error diffusion Apr. 16, 2013
8416256 Programmable dithering for video displays Apr. 9, 2013
8411325 Method for screening color separations of a lenticular image, computer program product and method for producing a lenticular image on a printing material Apr. 2, 2013
8400645 Printer with selectable capabilities Mar. 19, 2013
8400463 Data processing module for generating dithered data and method thereof Mar. 19, 2013
8384958 Image forming apparatus, density-shift correction method, and computer program product Feb. 26, 2013
8384959 Threshold matrix generating method, image data generating method, image data generating apparatus, image recording apparatus and recording medium Feb. 26, 2013
8386945 System and method for implementing compound documents in a production printing workflow Feb. 26, 2013
8379273 Image processing apparatus and image processing method Feb. 19, 2013
8379271 Image processing device and printing apparatus for performing bidirectional printing Feb. 19, 2013
8368961 Image processing device and method for creating binary image data using a single set of dither matrices Feb. 5, 2013
8368960 Image processing apparatus, computer readable medium, and printing apparatus Feb. 5, 2013

1 2 3 4 5 6 7 8

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