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8164798 |
Image processing apparatus and method for printing and plate making, and recording medium having image processing program recorded therein for printing and plate making
A neighboring vector, which is a boundary portion between two overlapping objects, is extracted. To calculate luminance levels of the objects on both sides of the neighboring vector, a...
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8085439 |
Method and device for processing a print data flow for producing multicolor printed images using a high performance printing system
In a method/device for preparing a print data stream for generation of print images with at least two primary colors, the print data contained in an input print data stream are supplied to a...
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8054506 |
Image forming apparatus and image quality enhancement method thereof
An image forming apparatus provides enhancement of image quality. The image forming apparatus includes a window generating unit to generate a main window of a predetermined size using a Lines Per...
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7978373 |
***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Image processing apparatus and method for printing and plate making, and recording medium having image processing program recorded therein for printing and plate making
A neighboring vector, which is a boundary portion between two overlapping objects, is extracted. To calculate luminance levels of the objects on both sides of the neighboring vector, a...
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7973801 |
Method and device for processing video data for display on a display device
A method for processing video data for display on a display device having a plurality of luminous elements comprising: applying a dithering function based on single ones of said luminous elements...
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7916351 |
Image processing apparatus and method, printer device, and computer readable recording medium
An image information acquisition unit obtains first print image information that is binarized with the use of a first threshold matrix. A threshold matrix information acquisition unit obtains...
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7898693 |
Fast generation of dither matrix
This invention provides a method of generating a dither matrix that stores each of a plurality of threshold values in each of elements for determining a status of dot formation of each print pixel...
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7880927 |
Image forming apparatus, image forming method, program, and recording medium
An image forming apparatus, an image forming method, a program, and a recording medium that succeed in reducing recording agent consumption without causing image quality degradation are provided. A...
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7869094 |
Selective dithering
Techniques are disclosed for selectively dithering only a subset of a digital image. One or more ranges of digits are selected for dithering. Only those pixels having digits within the selected...
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7751084 |
Image processing apparatus, image processing method, and program
An image processing apparatus of the present invention compares the density value of K-color at each position around a blank character with a reference density value, thereby deciding whether it is...
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7697788 |
System and method for automatically identifying a geometrical element in an image
An identifying system is provided for identifying a geometrical element in an image automatically. The image may be retrieved from an image capturing apparatus and is imported in a coordinate...
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7649649 |
Determining the color match between image data and graphics objects
A system/method of color match assessment for electronic documents includes receiving digital data defining a composite electronic document including a raster image object having an edge and a...
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7602531 |
Halftone edge enhancement for production by an image forming device
Digital images that are produced by an image forming device may be processed using an edge enhancement technique to reduce the effects of halftone color depth reductions. For each element in the...
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7586650 |
Image processing apparatus and image processing method
An image processing apparatus provided with: an edge correction unit for, based on a level of a pixel value of an edge area of an image, correcting the pixel value of the edge area of the image;...
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7576894 |
Device and method for sharpening image signal
A device for sharpening an image signal for receiving an image signal input, detecting and sharpening the object edge of the image signal input by using a detection period, and outputting an image...
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7570826 |
Method for improving print quality by using lossless image compression (JPEG-LS) technology and system thereof
A method for improving print quality by using lossless image compression (JPEG-LS) technology and system thereof are provided. The detailed characteristics of prediction errors generated during...
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7561303 |
Caching and optimisation of compositing
A method (1500) of generating a representation of a page (1000) to be rendered is disclosed. The page (1000) comprises one or more graphic objects (1080, 1090), each being defined by two or more...
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7557963 |
Label aided copy enhancement
Regions within a scanned document are labeled according to content. These labeled regions allow for particular enhancement and sharpening methods to be applied. The labeled regions may be further...
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7502145 |
Systems and methods for improved line edge quality
Systems and methods for improving image quality of image data to be rendered may be provided using multiple mask MRC files. Such a method may involve processing a first binary bit map of image data...
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7463387 |
Multilevel value output device
When the input value becomes close to the medium dot relative density value (Den_M), the large dot threshold value (Thre_L) and medium dot threshold value (Thre_M) become close to each other. It is...
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7414757 |
Method for compressing printing hint data sent to a printer
There is disclosed in embodiments methods relating to the compression of printing hints. The method in embodiments generates a first set of image pixels having corresponding printing hints. The...
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7355755 |
Image processing apparatus and method for accurately detecting character edges
An image processing apparatus includes an edge amount calculating device configured to calculate edge amounts of an image in a plurality of directions for each of a plurality of frequency bands of...
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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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7345792 |
Segmentation-based halftoning
A method for selecting a halftoning mode to be applied to regions within an image. The method operates on received image data to identify low-level regions within the received image data. The...
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7336400 |
Transforming an input image to produce an output image
An input image is transformed to produce an output image. Pixels occurring at edges that represent detail within the input image are detected to produce an intermediate image. Background fill...
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7330191 |
System for secure text display
Techniques for securely displaying text on a display panel involve destroying spatial and temporal correlations in an otherwise uniform visual field. The techniques render the displayed text secure...
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7292374 |
Method and apparatus for image processing capable of efficiently performing a gray-scale correction
A novel image forming apparatus which makes gray-scale by performing at least one of operations including a manipulation of a plurality of dots arranged in a form of matrix, a single-dot-based...
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7230742 |
Image data interpolating apparatus and medium on which data interpolating program is recorded
Even when a jaggy occurs in an original image, the image is accurately enlarged and a good image cannot be obtained as a result. In the case of performing pixel interpolation on an image in a dot...
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7227670 |
Method of selective edge softening and rendering for the suppression of halo
Selective edge softening and selective edge dithering is introduced into an image representation to improve local control where halo problems are expected. Selective areas of dilation are isolated...
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7209244 |
Post RIP image rendering in an electrographic printer to minimize screen frequency sensitivity
A method of printing multiple images with differing line screen frequencies with a printer is print sensitive to differing line screen frequencies, the method comprising the steps of: converting...
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7180636 |
Image processor and method
The present invention relates to an image processor provided in apparatuses such as digital copiers and printers, and that distinguishes between a character edge region and a continuous tone region...
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7170642 |
Image processing apparatus and method for improving output image quality
An image processing apparatus includes a first filtering process device configured to perform a predetermined space frequency characteristic conversion process to input image data having...
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7142330 |
Image processing method, image processing apparatus and recording medium
An image processing method of quantizing multi-tone image data by an error diffusion method, includes the steps of a) detecting change of the image data; and b) oscillating cyclically in image...
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7116447 |
Halftone dot-growth technique using a dot edge-detection scheme
A method for color correcting an original halftone bitmap image by a predefined color correction function to produce a color corrected halftone bitmap image comprising: providing an original...
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7075680 |
Image processing system, image forming system, and recording medium
A maximum color identifying portion 41 identifies a maximum color from coloring material colors used to reproduce a color of a line segment after color conversion into coloring material colors by a...
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7016080 |
Method and system for improving scanned image detail
Methods are provided for generating a dynamic image mask for improving image detail in a digital image. An electronic representation of an image is scanned. A dynamic image mask is generated from...
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6992798 |
Apparatus, product, and method of trapping using a distance buffer
A method, apparatus, and product to generate trap areas. One embodiment is a method for generating a trap pixel of a trap area surrounding one or more trapping edges of an image that includes, for...
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6982799 |
Creating composite page images from compressed data
A printhead controller controls printing of a page by at least one printhead. The printhead controller, in use, receives data, in a compressed format relating to the page to be printed, the data...
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6930804 |
System and method for automatically detecting edges of scanned documents
A method for identifying document edges collects a predetermined number scanlines of the document. Both first order and second order statistics are then calculated based on the scanned data. A...
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6842268 |
Printing of digital color images with locally adjusted half-toning
A method of and apparatus for printing color images by the superimposition of a number of separations, using a first half-tone technique optimized for surface reproduction, such as dithering, and a...
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6842267 |
Image processing method
An image processing method and an image processing apparatus for generating a binary image by binarizing the pixels of multlvalued tones are disclosed. An intended pixel, at least a pixel adjacent...
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6829064 |
Ink reduction using diffused bitmap masks
A technique is provided for reducing inking of image and text areas in an ink jet printing system. Initially, a shaded image/text multi-bit mask is provided. Half-toning, such as error diffusion,...
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6809840 |
Image processing method for adaptively sub-sampling an image
A digital image processing method for adaptively sub-sampling an image to X % of original pixels, includes the steps of generating an edge map of the image; normalizing the edge map to N-bits;...
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6771390 |
Method for modifying the size of line elements
In a method for changing the size of line elements on a printed page, first the nature of the size change is determined and a positive/negative identifier identifying the nature (positive/negative)...
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6760126 |
Adaptive halftoning method and apparatus
Methods and apparatus for adaptive halftoning for accommodating a mix of high and low visual activity are provided. Accommodations for white gap reduction and variable darkening are provided for...
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6744532 |
Method for enhancing printing quality
A method for enhancing printing quality to process the picture and textual data in an image properly such that both the picture and textual data can be clearly printed. The inventive method can...
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6704123 |
Method for applying tonal correction to a binary halftone image
A method and computer-readable medium for applying tonal correction to a binary halftone image formatted in a bit-mapped manner. The binary halftone image is descreened to obtain an individual...
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6667816 |
Digital image processing apparatus and method with storage of Non-finishable jobs
In a networked printing environment having at least a number of workstations of users, a management unit maintains logic storage spaces in a memory, each allocated to a respective user. Digital...
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6559969 |
Printhead controller and a method of controlling a printhead
A printhead controller controls printing of a page by at least one printhead. The printhead controller is connected, in use, via a data communications link to a printer controller for receiving...
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6026184 |
Image processor for restoring bi-level pixel data to multi-level pixel data
When a multi-level image is recovered from a pseudo-half-tone bi-level image, a smoothing component and an edge emphasis component obtained on pixels around a specified pixel to be recovered is...
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