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Match Document Document Title
9025170 Inspection apparatus and inspection method to determine a printed material defect portion based on a density difference of image data  
A reading unit reads a first side of a printed material having first image data printed on the first side and second image data printed on a second side, the second side being a back side of the...
8995019 Image processing apparatus, image processing method, and non-transitory computer readable medium  
An image processing apparatus includes an extracting unit extracting custom color identification data that identifies each of one or more custom colors different from multiple predetermined basic...
8970856 Image forming apparatus  
An image forming apparatus is described. Selecting a function desired by a user from among functions provided in the apparatus is provided to improve operability as well as eliminating erroneous...
8947734 Pulse width modulator for a printing device  
A pulse width modulation technique is disclosed for use in an image forming device such as a laser printer or a photocopier. The technique implements a pacer to synthesize the frequency of a...
8885213 Imaging forming apparatus  
An image forming apparatus for forming images at a plurality of resolution levels including at least one low resolution level and one high resolution level includes a photoconductor, onto which a...
8873108 Image processing apparatus and image processing method  
An image processing apparatus and an image processing method are provided, which are useful for faithfully reproducing luster even if a luminance reproduction range of an output apparatus is...
8842340 Printing system and program for executing halftone processing on representative values assigned to pixel group  
A host computer groups a plurality of pixels to generate pseudo pixels, assigns representative values in an RGB format to the pseudo pixels, and transfers the representative values to a printer....
8830530 Image processor and image processing method generating first and second multi-value density data or performing quantization based on an image characteristic  
Provided is an image processor and image processing method that are capable of suppressing both density unevenness and graininess that occur due to deviation of the printing position of dots that...
8810857 Method and printing system for gray balance correction of a printing process, computer program product and computer program storage device  
A method and a printing system for gray balance correction of a printing process include determining first color values at on a gray axis of a color space of a reference printing process. These...
8797600 Image forming apparatus and gradation correction method with density unevenness detection  
Image forming apparatus (100) creates a toner pattern on intermediate transfer belt (11) as a preprocessing of gradation correction, and calculates a cycle at which density unevenness is largest....
8767266 Image processing apparatus and image processing method for reducing the amount of consumption of recording material  
There is provided an image processing apparatus which can suppress degradation of an image quality in a recording material save mode processing and obtain an effect of consumption amount reduction...
8767264 Printing device and printing method  
When dot data indicating whether or not a dot is formed on the basis of the gradation value for each pixel, dots belonging to a plurality of pixel groups having different printing conditions are...
8760725 Tone dependent threshold perturbation error diffusion halftone  
A method and system for generating a halftone image from an input image is disclosed. The method and system use error distribution and threshold perturbation that is based on the incoming tone...
8693058 Image forming apparatus and image forming method to provide multi-bit data by combining a plurality of successive binary data  
An image forming apparatus is provided. The image forming apparatus includes a communication interface unit which receives print data, a rendering unit which converts the received print data into...
8687236 Ink restriction determination  
A method and apparatus as provided for determining, for an ink to be deposited on a substrate by a halftone inkjet printing process, a nominal coverage value (the ‘ink restriction value’), that...
8681385 Image processing apparatus  
An image processing apparatus is provided that includes a scanning unit for scanning a document to obtain scanning data and a control unit. The control unit is configured to specify a shadow...
8649060 Method of halftoning for asymmetric print resolutions and a printer  
A method of printing an image by a printer having an asymmetric printer resolution includes multi-level halftoning the image by assigning a level out of a number of levels to each pixel of the...
8619327 Image data color conversion technique using threshold with reduced pixels function and image processing apparatus  
An image processing apparatus which converts first image data having grayscale value of a predetermined color space for each pixel into second image data having grayscale values of recording...
8619319 Image processor and image processing method  
Inputted image data is converted to M number of multi-value data having a lower resolution than the inputted image data, and after quantization processing has been performed for each of the M...
8610956 Halftone dot formation method and apparatus, and image forming apparatus  
An image processing method generates a halftone image by forming a halftone dot represented by a set of one or plural output dots corresponding to an intensity of an input image signal while...
8570591 Color conversion device, color conversion method and computer readable medium calculate a minimum required black amount in regard to colors that are reproduced by an output device that actually outputs  
A color conversion device include a limit value setting unit that sets, in accordance with a color gamut, a limit value of a color material total amount that is used in an output device that uses...
8514454 Image processing apparatus and method for selecting a processing mode based on number of relative movements of a recording head  
An image processing apparatus is configured to process multivalued image data corresponding to a unit area of a recording medium so as to form an image on the unit area with a plurality of...
8503036 System and method of improving image quality in digital image scanning and printing by reducing noise in output image data  
A system and method of reducing noise in output image data is provided. Grayscale image data having a plurality of pixels is received and processed. During processing, pixels which may produce...
8488221 Printing device for printing images with ink and printing method for the same  
Display image data for displaying images on a screen, and when display image data that has undergone specified gradation conversion is received, the characteristics of the output brightness...
8467102 Image forming apparatus and image correction method for correcting scan-line position error  
A scan line profile characteristic representing the distortion of a scan line is detected. Dot image data undergoes the screen process using a dither matrix. At this time, the quantization process...
8437040 Method and system for digitally controlling image printing system to achieve desired color density of printed image  
A method for controlling a tone reproduction curve of an image printing system includes generating an actual printed image tone reproduction curve using printed image data from a printed image...
8432580 Error diffusion processing method and apparatus  
An error diffusion processing method and apparatus quantizes an input grayscale value of a pixel (m, n) of an input image based on a determination of whether the input grayscale value belongs to...
8422080 Image processing apparatus and image processing method in which composite tone pixel data is provided based on tone pixel data generated by error diffusion processing and dither processing  
An image processing apparatus 101 that generates output image data based on multi-level image data is provided with an error diffusion processing unit 104 that generates tone pixel data from the...
8416451 Natural language color communication and system interface  
A method and system for controlling color output includes receiving a document containing a color image, producing a first output copy of the document using a first color processing path,...
8411324 Selection of exposure intensity and cleaning field intensity setpoints for optimum line width using sensor reading  
Line width of images marked by an image marking device is adjusted by reading a calibration patch marked by the marking device, and then adjusting one or more settings of the marking device, such...
8405876 Image processing apparatus and image processing method  
When multi-pass printing is performed, the dot overlap rate (ratio of the number of dots that overlap and are to be printed in the same pixel area by the plurality of relative movements with...
8405881 Image processing device with an additional image overlaying function  
An image processing device includes an additional image formation unit configured to form an additional image having a first predetermined density. At least a part of the additional image is...
8368979 Image forming apparatus and computer readable medium for forming image  
An image forming apparatus includes a tone correction storage unit that stores a plurality of tone correction charts for correcting tone of image data; a determination unit that determines...
8358442 Image processing device and image processing program  
An image processing device includes a multiplier 1 for multiplying a pixel signal P(x) by a weighting factor α0 (0≦α0≦1), a delay element 2 for delaying the pixel signal P(x) which has not been...
8339674 Halftone independent correction of spatial non-uniformities  
A method and apparatus are provided for compensating for spatial non-uniformities in a printer by deriving a true spatial non-uniformity tone response curve (TRC) that characterizes the printer in...
8339678 Apparatus, system, and method of process control based on the determination of embedded information  
An apparatus, system, and method for image processing are disclosed, each of which obtains a mark from image data, detects additional information in the mark, determines whether the mark is...
8325385 System and methods for processing color data in converting color data from one color space to another color space  
Systems and methods are provided for processing at least one document comprising color data. Color data in the document in a first color space is inspected to determine if a color space conversion...
8310702 Information processing method, printing apparatus, and computer-readable medium for supressing light scattering  
Print data is generated to form an image on a printing medium by superposing a plurality of types of printing materials in some or all pixels of an output image in an order complying with the...
8290258 Method, device and computer program product for performing a color based white balance of a digital image  
A method for performing a color based white balance of a digital image, the method includes: generating or receiving multiple chromaticity value pairs of multiple pixel areas of the digital image;...
8279489 Image processing apparatus and control method thereof for converting multilevel image data to binary data using an error diffusion method  
A technique for performing high-quality cluster type FM halftone image output without “anisotropy” or “sweep out texture” phenomenon is provided. An error diffused to a current pixel position and...
8274704 Image processing apparatus and method for selecting a processing mode based on attributes of original multivalued image data  
An information processing apparatus processes, for each pixel, multivalued image data for a unit area of a recording medium, so as to form an image on the unit area with a plurality of relative...
8274705 Multi-level surround error diffusion  
Machine-enabled methods of, and system, and processor readable media, embodiments for, tone quantization error diffusion comprising a first stage process and a second stage process. where...
8243327 Method for generating basic template utilized to form screening mask  
Disclosed is a method for generating a basic template utilized to form a screening mask. The method includes adjusting lines per inch or minimum pattern (such as cluster size or density) of a...
8208171 Image reading apparatus and method to prevent image erasing due to erroneously line-shaped noise detection  
The present invention aims to prevent a problem that an image on a document sheet is erased due to misdetection of a line-shaped noise. A copy machine 1 compares RGB values of a target pixel with...
8194290 Image compensation method with correctional gray level values of complete black and/or white  
An image compensating method. First, multiple scanning lines are used to scan a document and a longitudinal black and white pattern, in order to produce the actual gray level value for multiple...
8189237 Distributing a SRE codes in halftone pixels pattern in supercell  
A method is employed that represents patterns using a super resolution encoding method that distributes the code value among adjacent pixels. One or more blocks are created, wherein each block is...
8179568 Minimizing dot graininess in dot-on-dot printing devices  
What is disclosed is a novel system and method for minimizing dot visibility in color marking devices capable of dot-on-dot printing. The present method achieves minimum dot visibility for a given...
8159719 Method for correcting the gray balance of a printing process  
A method for correcting gray balance of a printing process includes imaging printing forms assigned to color separations with a test form, printing a printing material using the printing forms in...
8149432 Information processing apparatus, method, and recording medium storing program for modifying print instructions  
An information processing apparatus that can be connected to an image-forming apparatus, a method, and a program used for the information processing apparatus are disclosed. The information...
8144368 Automated methods for distinguishing copies from original printed objects  
This disclosure describes methods for using embedded auxiliary signals in documents for copy detection and other applications. In on application, the auxiliary signal is formed as an array of...

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