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8139075 |
Color packing glyph textures with a processor
A system, a method and computer-readable media for rendering text with a graphics processing unit (GPU). The system, method, and media includes a GPU that may be configured to receive a plurality...
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8125691 |
Information processing apparatus and method, computer program and computer-readable recording medium for embedding watermark information
A watermark information embedding apparatus generates a document image from electronic document data that has been input thereto, modifies the electronic document data based upon the document image...
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8089661 |
Embedding authentication information to prevent document spoofing
In a computer system in which information represented by digital data is output to plural pages of recording medium, and then information on the plural pages of recording medium is read to use...
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8064103 |
Information processing apparatus and method
An information embedding apparatus (200) which embeds information in each character in an original document includes an extraction unit (202) which extracts the circumscribed rectangles of...
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8045186 |
Image processing apparatus, image processing method, computer readable medium and data signal
An image processing system includes a profile generating section, a designating section, a calculating section and a correcting section. The profile generating section generates a color conversion...
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8023159 |
Marking images of text with speckle patterns for theft deterrence
The present invention provides methods and apparatus for embedding an identifying pattern of visible speckles into the digitized image of each page of a document. A speckle is a cluster of black or...
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7973966 |
Method of printing a compressed image having bi-level black contone data layers
A method of printing a compressed image includes the steps of receiving the image, having a bi-level black data layer and a continuous tone (contone) CMYK data layer, from an image host; expanding...
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7944586 |
Page expansion and printing method
A page expansion and printing procedure requires a first page description into a first memory buffer, the first page description having a bi-level black layer and a contone CMYK layer;...
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7936488 |
Image reading apparatus
An image reading apparatus includes: a light source emitting a plurality of colors; a light receiver including a plurality of pixels which receive lights of respective colors; an analog-to-digital...
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7936478 |
Method of printing a compressed image having a bi-level black layer and a contone layer
Provided is a method of printing a compressed image. The method includes the steps of receiving, with a printer controller, the image, having a bi-level black data layer compressed in an Edge Delta...
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7924469 |
Image processing apparatus, image processing method, and program
In order to eliminate image deterioration based on the characteristics of an output device upon execution of edge emphasis processing, an image processing apparatus includes a setting unit which...
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7872777 |
Document optimization using solid monochrome colors and outlining
Methods of the present invention allow for optimization of color and shades of gray documents prior to their conversion to a monochrome format. If color/gray elements are identified in the...
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7873218 |
Function approximation processing method and image processing method
A function approximation processing method comprises inputting and binarizing image data, extracting contour from the binarized image data, estimating tangent points in horizontal and vertical...
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7830552 |
Black white image scaling having print density control and polarity detection
A scaling system and method for scaling a bitonal image that has print density control. A system for scaling a bitonal image is provide that includes: a polarity detection system for detecting a...
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7808677 |
Printer controller configured to perform a method of page expansion and printing
The invention provides for a printer having a controller configured to perform a method of page expansion and printing of image data received from a computer. The method includes the steps of...
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7796301 |
Method of super image resolution
A method of improving resolution for an image is disclosed. The method for improving resolution of an image includes loading a first image and creating a first super grid image based on the first...
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7652807 |
Image generating apparatus, image generating method and computer readable medium
An image generating apparatus includes a color correcting unit, a setting unit and an image generating unit. The color correcting unit corrects a drawing color of each image element. When at least...
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7646511 |
Method of printing a compressed image having bi-level black contone data layers
The invention relates to a method of printing a compressed image having a bi-level black data layer and a continuous tone (contone) CMYK data layer. The method includes the steps of receiving the...
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7639397 |
Page expansion and printing method incorporating halftoning and compositing
Provided is a page expansion and printing method for a pagewidth inkjet printer. The method features the step of receiving a page description having a bi-level black layer and a contone CMYK (Cyan...
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7576890 |
Digital swatch book
A system for generating digital swatch books, comprising a simulation component for generating, based on a set of standard reference colors and based on at least one reproduction system profile...
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7557962 |
System and method for tone-dependent multi-frequency halftone screening
The present invention is directed to a system and method for halftone screening. A system for halftone screening includes means adapted to receive image data having a desired number of tonal levels...
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7548345 |
High resolution print mode offering improved text print quality
A high-resolution printing method includes the steps of determining if a pixel of a plurality of pixels is a true black pixel and positioning the true black pixel in a predetermined column and a...
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7545534 |
Image processing apparatus, method and program binarizing received image data
An image processing apparatus receives and binarizes image data in accordance with first and second algorithms to output first and second binarized data which are in turn compared and in accordance...
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7508541 |
Image processing apparatus, image forming apparatus, and image processing method
An image processing apparatus having a first area judgment unit for judging whether an inputted pixel is an edge pixel of a character image, a second area judgment unit for judging whether the...
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7505174 |
Image processing method, system and apparatus, and storage medium
A rasterizer generates bitmap images of RGB on the basis of object data inputted from a printer driver and stores the result in an image memory. The rasterizer brings attribute information...
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7483167 |
Image forming apparatus for identifying undesirable toner placement
A method and apparatus for printing data on a print medium is disclosed. The apparatus is configured to format print data to pixel data, the pixel data including pixel values; identify a grid of...
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7450268 |
Image reproduction
A method of reproducing an image, comprising: creating a, or using an already existing, bitmap-input image;finding zones in the input image containing text;determining colors of pixels, characters,...
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7359553 |
Image identification system
Methods and procedures for improving the performance and reliability of image analysis within an image identification system include a series of image qualification functions designed to quickly...
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7352490 |
Method and system for generating contone encoded binary print data streams
A method and system to convert an electronic image file described in a page description language containing both contone and non-contone image objects to an intermediate binary format image. The...
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7336397 |
Image processing method for execution externally and internally to a printer
A method for image processing data representing a page to be printed includes the step of respectively receiving, in a data processing apparatus, external to a printer, data representing a bi-level...
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7245399 |
Method of printing page data with a pagewidth inkjet printhead
Compressed page data incorporating compressed contone CMYK data and bi-level black data is received. The contone CMYK data and bi-level black data are expanded in parallel operations. The CMYK...
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7239430 |
Binary halftone detection
A method to detect frequency and angle of a binary halftone pattern. The method employs an exclusive-or operation which is applied locally to a region of a binary bit map and its spatially shifted...
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7224486 |
Image conversion method, image conversion apparatus, and image conversion program storage medium
In an image conversion method of performing an image conversion between binary area tonal image-to-binary area tonal image, an image conversion apparatus, and an image conversion program storage...
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7218415 |
Integrated circuit for printer
An integrated circuit fabricated on a single substrate. The integrated circuit includes a data bus and purpose-specific functional units connected to the data bus. The functional units include a...
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7215443 |
Method of and apparatus for printing
It is necessary that paper be moved past the printhead at a constant velocity to obtain artifact-free printing. Therefore the printhead requires a constant stream of data during printing. Whilst it...
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7206098 |
Method for avoiding print buffer underrun
In order to avoid print buffer under-run a printing method involves a printer printing a rendered first page of print data while another page is rendered in a connected computer. Simultaneously, a...
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7196820 |
Printer controller for a pagewidth printhead
A printer controller for a pagewidth printer includes input interface circuitry configured to receive page description data in the form of bi-level data and contone data. Decompression circuitry is...
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7173739 |
Pagewidth inkjet printer having composite image printing control
A printer is provided comprising a pagewidth inkjet printhead for printing bi-level dots of ink onto print media at a resolution of 800 to 1600 dpi and a controller for controlling the pagewidth...
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7165824 |
Dead nozzle compensation
A printer controller for supplying dot data to a printhead in a predetermined order, the printhead comprising at least first and second printhead modules, each of which comprises a plurality of...
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7164501 |
Printer controller integrated circuit
Where the bandwidth of a data link between a printer and a computer is limited it may be desirable to transmit compressed page layout data over the data link. A printer controller chip is provided...
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7150510 |
Print engine controller for an inkjet printhead assembly having infrared tag control
A print engine controller for an inkjet printhead assembly includes a data bus. A data interface and a memory interface are connected to the data bus for loading compressed page data into the data...
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7099025 |
Printing system, printing control method and apparatus printing data in accordance with updated condition information
When an engine unit of a printing apparatus issues a calibration request, a controller unit of the printing apparatus stores correction data in a storage unit. Upon printing, a data controller...
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7092127 |
High data rate printer architecture and method of printing using same
A method of printing and the related printer architecture for receiving compressed page data that includes both contone data and foreground bi-level data. Both the contone data and the foreground...
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7092125 |
Method of printing using PC and printer
It is necessary that paper be moved past the printhead at a constant velocity to obtain artifact-free printing. Therefore the printhead requires a constant stream of data during printing. Whilst it...
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7072076 |
Printing method using PC rendering
It is necessary that paper be moved past the printhead at a constant velocity to obtain artifact—free printing. Therefore the printhead requires a constant stream of data during printing. Whilst i...
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7065247 |
Apparatus for and method of graphics imaging
The printer's page description contains a contone layer and a black layer. The black layer is conceptually above the black layer and is composited over the contone layer by the printer. The print...
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6999616 |
Interpretation of colored documents
Automatic interpretation processing operations, such as character recognition, require a binary image of information-bearing image elements and a background. Digital image data produced by scanning...
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6980329 |
Image processing apparatus and image forming apparatus
The image processing equipment produces an image of enhanced quality, having dots with higher density than in an original image, by collating an original image with templates. The present invention...
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6954556 |
Smoothing method, smoothing circuit and image output apparatus
A smoothing method extracts an evaluation window including a target pixel of a multi-value image data in which tone is represented by a multi-value in units of pixels, and judges black and white of...
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6944347 |
Image compression and restoring method for binary images
The present invention relates to the image compression and restoring method for binary images that can be used in binary image equipment including printers. In the present invention, an image is...
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