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7619776 |
Method to produce a hardcopy output of an image formed at least in part by perforations
A method to produce a hardcopy output of an image on an imaging medium includes providing grayscale image data representing the image; determining a perforation density for representing the image;...
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7589868 |
Method and apparatus for creating 3D-prints and a 3-D printing system
A method and apparatus for creating a print file for printing a 3-D print using a 3-D printing system is described, the 3-D print comprising a plurality of 3-D structures printed on a substrate,...
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7580154 |
Printing plates containing ink cells in both solid and halftone areas
A method, associated software and resulting printing plate having both solid and halftone areas comprising ink cells. Ink cells may be provided in the solid areas according to a first pattern with...
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7532365 |
Threshold matrix generation method, threshold matrix generation apparatus, and recording medium
In a threshold matrix generation part 3 implemented by a computer, a tint image in a specified gray level is generated from temporary lighting order set in a matrix area, and a smoothing...
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7518755 |
Image processing apparatus, image forming apparatus, method for processing image, computer program, and recording medium
An image processing apparatus includes a document type automatic discrimination section that, based upon input image data read from a document, automatically discriminates a document type of the...
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7486420 |
Flexographic printing
A method of screening a continuous tone image into a halftone representation for a flexographic printing operation can compensate for characteristic printing problems in highlight areas by...
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7480063 |
Print system printing data while storing under compressed state, and printer for use therein
In a printing process with a print head having multiple dot formation elements for creating dots, an overlap printing technique that uses at least two dot formation elements for formation of each...
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7453604 |
Systems and methods for estimating an image marking process using scanned image attributes
Methods and systems used to automatically identify the marking process used for an image on a substrate based on spatial characteristics and/or color of the image. Image types which are classified...
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7436977 |
Embedding variable watermark information in halftone screens
Using correlated stochastic screens, time stamps, text messages, logos and other variable data can be incorporated into printed halftone images in real-time as invisible watermarks. A reference...
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7394567 |
Data embedding scheme for duplex color laser printer
A data embedding technique that adds a watermark in the form of embedded data in the RGB domain in a duplex color laser printer. The data embedding algorithm employs a two-color (cyan and magenta)...
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7385731 |
Method and system for processing a multi-colour image
A method and system are provided for processing digital multi-colour images for the reproduction thereof on a colour printing and/or copying system. Particularly, the printing and/or copying system...
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7372594 |
Image processing apparatus and method, and storage medium
A pattern which does not appear at a flat portion in normal binarization processing is set as a code pattern, and a code formed from this pattern is attached. At this time, code attachment with...
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7365881 |
Halftone dot-growth technique based on morphological filtering
A method for converting an original halftone bitmap image to a color converted halftone bitmap image. A set of asymmetrical morphological filters is provided. The original halftone bitmap image is...
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7355756 |
Color electrophotographic apparatus and method of processing an image produced thereby
An image reproduction engine which causes toner to adhere to a development region of certain area located at a certain position within dots according to image reproduction data is utilized for...
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7292368 |
Halftone proofing with inkjet printers
Techniques are described for preparing halftone bitmap images for printing on inkjet printers. The techniques may involve exclusive use of low-density inks to reproduce highlight colors and means...
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7239420 |
Corresponding lenticular imaging
Disclosed herein is a method of making a corresponding lenticular image comprising: providing an output device in communication with a computer having a memory; receiving into the computer memory...
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7212688 |
Computer program and method for converting an image to machine control data
A method of transferring a representation of an image to a surface ( 12 ) of a building ( 14 ). The method comprising receiving the image as an image file, converting the image file to a raster...
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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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7136185 |
Corresponding lenticular imaging
Disclosed herein is a method of making a corresponding lenticular image comprising: providing an output device in communication with a computer having a memory; receiving into the computer memory...
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7126724 |
Flexographic printing
A method of screening a continuous tone image into a halftone representation for a flexographic printing operation can compensate for characteristic printing problems in highlight areas by...
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7126723 |
Producing engraving-style halftone images
An image processing scheme that applies engraving-style effects to an image is described. In one embodiment, an initial line pattern is warped to produce a warped line pattern, and an original...
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7116445 |
Image forming apparatus and image forming method
An object of this invention is to eliminate graininess caused by superposition of noise on an image reproduced as a hard copy. To achieve this object, this invention provides an image forming...
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7085017 |
Polar halftone methods for radial printing
Disclosed are apparatus and methods for implementing polar halftone techniques that substantially reduce or eliminate interference patterns while printing on rotating circular media with a radial...
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7046863 |
Optimizing the advantages of multi-level rendering
Systems and methods for optimizing the advantages of multi-level rendering of text and/or graphics at an output device by providing an alternate manner to perform multi-level rendering. A computer...
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7025515 |
Bit mask generation system
A printing system is disclosed where a multi level pixel image ( 200 ) is converted into a half tone image ( 300 ) utilising a set of bit mask arrays ( 350 - 0 to 350 - 255 ) stored within a...
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7006244 |
Image rendering method and system using negative signals
A xerographic marking device includes a source of pixels representative of digitized image information. A rendering image processor analyzes the pixels for an image characteristic, and based on the...
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7006256 |
Watermarked image generator and method of embedding watermarks into an input image
A watermarked image generator includes a watermark data source that inputs watermark data to a watermark embedding device. The watermark embedding device halftones the input image to generate the...
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6943808 |
System and method of reducing aliasing in printed images
The system and method reduces aliasing which is formed by the patterns that are introduced by the halftone screens used in the printer. The system and method provides halftone-specific anti-alias...
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6870633 |
Printing device
The printer driver receives print data from an application software program. When the received print data is font data, the printer driver transmits the font data as it is to the printer. When the...
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6833933 |
Stochastic screens for printing
A method of generating a stochastic screen for use in printing a halftone containing image on a surface, where the generated stochastic screen comprises an array of threshold values each of which...
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6763144 |
Halftone image reproduction
Method and apparatus for performing halftoning of an image, using two 2-dimensional look up tables (LUTS). The first LUT receives coordinates of an image value and outputs a screen reference value...
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6748102 |
Document alteration indicating system and method
A system and method for detecting alteration of a document. The invention evaluates markings in half-tone fields by ascertaining a first dot count of dots isolated from the marking in the half-tone...
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6741369 |
Method for the operating an engraving member
In a method for operating an engraving member in an electronic engraving machine to engrave printing forms, especially printing cylinders for intaglio printing, a stylus of the engraving member is...
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6731405 |
Printing plates containing ink cells in both solid and halftone areas
A method, associated software and resulting printing plate having both solid and halftone areas comprising ink cells. Ink cells may be provided in the solid areas according to a first pattern with...
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6731408 |
Method for producing a raster surface for use in the coloring of contact lens
Method for producing a raster surface for use in the coloring of a contact lens, in which method an image surface consisting of picture elements is selected, the image surface is subjected to a...
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6717701 |
Signal processing method
In a method for processing signals in an electronic engraving machine for engraving printing forms, engraving control signals for guiding the stylus of an engraving element are obtained from...
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6707572 |
Filtering method to reduce pixel density
A computerized method for controlling the density of pixels deposited by a print engine includes the steps of: (a) obtaining a two-dimensional pixel map of an image to be printed; (b) comparing a...
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6700679 |
Image recording apparatus
An image recording system is provided with an image data producing apparatus to produce and output halftone dot image data corresponding to a single sheet of output image, for each of plural colors...
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6532082 |
Halftone printing plates containing microscopic perforations and methods for producing same
A computer implemented method to include microscopic perforations (perforations) in an printing plate is revealed. The particles improve the properties of the plate towards printability of an image...
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6466331 |
Multi-bit rendering with single color and two-color capability
In an electrostatographic recording apparatus and method of forming images on a charge retentive surface such as a photoconductive member using a single writer source, the surface is uniformly...
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6433890 |
System and method for improving printing of a leading edge of an image in a gravure printing process
This invention relates to a system and method for intelligently placing in a periodic and/or random manner a plurality of whetting areas which facilitate lubricating and/or cooling a doctor blade...
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5947020 |
System and method for engraving a plurality of engraved areas defining different screens
An engraving system and method is disclosed having multiple engraving heads wherein the operation of each head is controllable so that a vertical screen and/or horizontal screen may be...
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5886792 |
Engraver for defining/generating edges or edge signals
This invention provides an engraving method and apparatus for engraving a plurality of cells which define a pattern defining at least one edge on a surface of a cylinder. The method and apparatus...
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5828463 |
Printing plate for a halftone image having toner dependent rosette structures BV phase modulation
A screening system comprises at least one screen of which the phase is tone or image level dependent. This tone dependent phase shift influences the rosette structure and can be used to improve the...
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5691818 |
System and method for enhancing edges and the like for engraving
A method and apparatus for engraving wherein the engraver includes a merge system for merging image data to be engraved in a manner which will reduce or eliminate "halo" and/or "ghost" images. The...
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5663803 |
Engraving method and apparatus for engraving areas using a shaping signal
The engraving method and apparatus provides a method and apparatus for engraving a plurality of cells in a surface of a cylinder. The engraving method and apparatus involves, among other things,...
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5355793 |
Method and apparatus for making a mimeographic printing plate
A heat-sensitive material is used for making a mimeographic printing plate. The plate material includes a screen where printing ink is passable, and a resinous membrane formed on its surface. The...
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5327167 |
Printing cylinder engraving
When laser engraving flexographic and rotary screen printing cylinders half-tones are generated by providing a series of regularly spaced cells (1) including dots or pits (3) which collectively are...
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5229861 |
Electronic gravure engraving apparatus including photo tone and character/solid tone processing
A manuscript picture is inputted at a picture input unit (10) as a set of pixels having a density value. On the plate, cells corresponding to inputted respective pixels are engraved by a stylus...
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4727430 |
Halftone image recording method and apparatus therefor
A halftone image is reproduced and recorded by photoelectrically scanning an original in the following manner. One of the density range, hue range and coordinate range of the original or an image,...
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