Resources Contact Us Home
Browse by Category: Main > Communications
Class Information
Number: 358/3.19
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) > Stochastic or random dithering
Description: Subject matter wherein a dithering process produces an unordered, randomly, or pseudo-randomly dispersed pattern of print elements (e.g., black dots) forming a halftone pattern with uncorrelated structure and without low frequency graininess.

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8681383 2.sup.nd generation dot-off-dot stochastic halftone Mar. 25, 2014
8462390 Image processing method and apparatus Jun. 11, 2013
8462391 Method for producing a pseudo-stochastic master surface, master surface, method for producing a cylinder cover, cylinder cover, machine processing printing material, method for producing print Jun. 11, 2013
8441688 Image processing apparatus and method thereof May. 14, 2013
8379271 Image processing device and printing apparatus for performing bidirectional printing Feb. 19, 2013
8373738 Image forming apparatus and image forming method Feb. 12, 2013
8368961 Image processing device and method for creating binary image data using a single set of dither matrices Feb. 5, 2013
8300275 Method for reducing the area coverage of a printing plate Oct. 30, 2012
8289559 Printing apparatus and processing method therefor Oct. 16, 2012
8284458 Image processing apparatus and method for managing documents with output-prohibit area Oct. 9, 2012
8237989 Method to improve a halftone by combining halftoning with algorithmic processing Aug. 7, 2012
8179568 Minimizing dot graininess in dot-on-dot printing devices May. 15, 2012
8149464 Clustered dot-screen design method, a device to perform the clustered dot-screen design method based on human vision and printer model characteristics, and an image-forming apparatus to output Apr. 3, 2012
8014036 Methods and apparatus for watermarking digitally printed documents Sep. 6, 2011
7973801 Method and device for processing video data for display on a display device Jul. 5, 2011
7965419 Image processing device and printing apparatus for performing bidirectional printing Jun. 21, 2011
7924465 Dither matrix, image processing method, storage medium, image processing apparatus, image forming apparatus, and image forming system Apr. 12, 2011
7898693 Fast generation of dither matrix Mar. 1, 2011
7889884 Image processing apparatus and method Feb. 15, 2011
7880934 Methods and apparatus for watermarking digitally printed documents Feb. 1, 2011
7804620 Method and arrangement for generating a dot matrix imprint with control using random output and probability Sep. 28, 2010
7791766 Image processing apparatus and image processing method Sep. 7, 2010
7782493 Method of generating threshold matrix for creating halftone dot image and method and apparatus for creating halftone dot image and recording medium Aug. 24, 2010
7746501 Method and device for compressing image data Jun. 29, 2010
7733534 Image processing method, image processing apparatus, image forming apparatus, and recording medium Jun. 8, 2010
7719722 System and method of halftoning for multi-pass rendering May. 18, 2010
7532365 Threshold matrix generation method, threshold matrix generation apparatus, and recording medium May. 12, 2009
7463387 Multilevel value output device Dec. 9, 2008
7440141 Method for generating a dither mask Oct. 21, 2008
7369276 Multi-level halftoning providing improved texture uniformity May. 6, 2008
7369277 Image processing apparatus, drawing processing method, and computer program May. 6, 2008
7298525 Image processing device and image processing program for processing a plurality of color signals formed of a plurality of color components Nov. 20, 2007
7277204 Stochastic halftone screening method Oct. 2, 2007
7268790 Display system with framestore and stochastic dithering Sep. 11, 2007
7265875 Halftone super-cell optimization for artifact reduction Sep. 4, 2007
7262885 Stochastic halftone screening method Aug. 28, 2007
7251060 Image-processing device using quantization threshold values produced according to a dither threshold matrix and arranging dot-on pixels in a plural-pixel field according to the dither threshol Jul. 31, 2007
7193751 Tag control for runtime glossmarks Mar. 20, 2007
7148999 Variable glossmark Dec. 12, 2006
7139101 Anisotropic stochastic screen Nov. 21, 2006
7095530 Color vector halftoning using a successive filling with improved color registration latitude Aug. 22, 2006
7095448 Image processing circuit and method for modifying a pixel value Aug. 22, 2006
7092128 Application of glossmarks for graphics enhancement Aug. 15, 2006
7081901 Display system with framestore and stochastic dithering Jul. 25, 2006
7038814 Fast digital image dithering method that maintains a substantially constant value of luminance May. 2, 2006
6982799 Creating composite page images from compressed data Jan. 3, 2006
6956676 Methods and systems for providing halftone screens Oct. 18, 2005
6956673 Image processing apparatus and method to reduce gray levels of image Oct. 18, 2005
6931163 Method for converting the coordinates of image data by way of random offset of the picture elements Aug. 16, 2005
6909524 Image processor which can add predetermined information to an image while minimizing image-quality degradation, and methods therefor Jun. 21, 2005

1 2 3

  Recently Added Patents
Audit planning
Time sharing type autostereoscopic display apparatus and method for driving the same
Method and system for coding an information signal using closed loop adaptive bit allocation
Semiconductor light-receiving device
Method for forming contact in an integrated circuit
White polyester film and surface light source therewith
Vehicle window opening and closing control device
  Randomly Featured Patents
Hydraulic tensioner with a band type check valve
Nitrogen containing heterocyclyl substituted imidazoquinolines and imidazonaphthyridines
Valve for fluid filter
Refrigerant recovery system with flush mode
Subterranean well welding habitat
Multiple-wheel input device
Camping mattress with cradling cushions
Dual energy x-ray imaging system and method for radiography and mammography
Fluid operated rock drill hammer
Sub-segmented alignment mark arrangement