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Class Information
Number: 358/466
Name: Facsimile and static presentation processing > Facsimile > Specific signal processing circuitry > Image processing > Picture signal thresholding > Variable thresholding technique
Description: Subject matter wherein the type of thresholding technique is determined by the image portion being analyzed.

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

Patent Number Title Of Patent Date Issued
8532379 Image processing apparatus and image processing method Sep. 10, 2013
8526072 Methods, systems, and computer program products for protecting information on a user interface based on a viewability of the information Sep. 3, 2013
8483502 Image processing apparatus including error diffusion processing which adds green noise characteristics, image processing method including error diffusion processing which adds green noise char Jul. 9, 2013
8477378 Image processing apparatus and image processing method Jul. 2, 2013
8422079 Image forming apparatus and image correction method for correcting scan-line position error with error diffusion Apr. 16, 2013
8411327 Data processing device, image forming device, system, and a computer-readable recording medium for determining whether or not image is properly formed on recording medium Apr. 2, 2013
8400694 Image forming apparatus to save toner and method to control the same Mar. 19, 2013
8363889 Image data processing systems for hiding secret information and data hiding methods using the same Jan. 29, 2013
8355181 Method for processing non-standard frames by T.38 gateways Jan. 15, 2013
8339673 Method and apparatus for improving edge sharpness with error diffusion Dec. 25, 2012
8334992 Image formation apparatus Dec. 18, 2012
8306325 Text character identification system and method thereof Nov. 6, 2012
8274710 Image processing using count variation Sep. 25, 2012
8259358 Apparatus for eliminating moire in scanned image and method for the same Sep. 4, 2012
8237993 Apparatus and method for image processing of ground pattern Aug. 7, 2012
8199385 Image forming apparatus to save toner and method to control the same Jun. 12, 2012
8130422 Image processing device and method thereof Mar. 6, 2012
8045816 Image quantization method and apparatus with color distortion removing quantization matrix Oct. 25, 2011
7999975 Analog front-end circuit and electronic instrument Aug. 16, 2011
7948655 Image processing apparatus, image processing method, image processing program, and storage medium May. 24, 2011
7898693 Fast generation of dither matrix Mar. 1, 2011
7889365 Image forming apparatus Feb. 15, 2011
7881553 Image processing apparatus, image processing method, and computer program product Feb. 1, 2011
7817876 Method of noisy signal analysis and apparatus thereof Oct. 19, 2010
7724955 Apparatus and method for auto windowing using multiple white thresholds May. 25, 2010
7705802 Method for performing high-speed error diffusion and plasma display panel driving apparatus using the same Apr. 27, 2010
7701623 Image reading device, image reading method and copier Apr. 20, 2010
7672525 Image processing method, program, storage medium, and apparatus for executing a quantization process of image data by error diffusion Mar. 2, 2010
7646502 Driver program and transfer method for data Jan. 12, 2010
7616340 Image processing method and apparatus, threshold value matrix creating method, image forming apparatus, sub-matrix creating method and program Nov. 10, 2009
7574069 Retargeting images for small displays Aug. 11, 2009
7557969 Color balance correction chart, color balance correction method, and image forming apparatus Jul. 7, 2009
7545435 Automatic backlight compensation and exposure control Jun. 9, 2009
7525703 Method, apparatus and computer product program for performing shading correction of image processing apparatus Apr. 28, 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
7342696 Computational moire compensation Mar. 11, 2008
7330600 Image processing device estimating black character color and ground color according to character-area pixels classified into two classes Feb. 12, 2008
7262884 Image processing apparatus and image processing method Aug. 28, 2007
7236643 System and method for filtering and binarization of images in the presence of specular noise Jun. 26, 2007
7145693 Image processing apparatus and method Dec. 5, 2006
7142325 Document management device, communications terminal device, document management program, communications control program and document management system Nov. 28, 2006
7139105 Image reading apparatus for optically reading an image Nov. 21, 2006
7062104 Distortion-adaptive visual frequency weighting Jun. 13, 2006
7006703 Content recognizer via probabilistic mirror distribution Feb. 28, 2006
7006692 Method, apparatus and computer program product for processing image data Feb. 28, 2006
6987879 Method and system for extracting information from images in similar surrounding color Jan. 17, 2006
6965696 Image processing device for image region discrimination Nov. 15, 2005
6873731 Image processing method and image processing device Mar. 29, 2005
6873729 Method, apparatus and computer program product for processing image data Mar. 29, 2005

1 2 3 4 5 6 7

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