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Method and system for determining object type from raster data

A technology of raster data, object type, applied in the electrical recording process using the charge pattern, equipment for the electric recording process using the charge pattern, optics, etc.

Inactive Publication Date: 2017-01-04
KYOCERA DOCUMENT SOLUTIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, even if a document contains predominantly black or gray text, the default color profile may be a photographic color profile, causing the image forming unit to unnecessarily print text in colors other than black, which can lead to "color banding" and other Visual artifacts are formed on the printed page

Method used

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  • Method and system for determining object type from raster data
  • Method and system for determining object type from raster data
  • Method and system for determining object type from raster data

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Embodiment Construction

[0023] Various embodiments are described below with reference to the figures. It should be understood, however, that various modifications are possible from the depicted arrangements and functions while remaining within the scope and spirit of the claims. For example, one or more elements may be added, removed, combined, assigned, substituted, relocated, reordered, and / or otherwise changed. Further, in this description, one or more functions implemented on one or more devices, one or more machines and / or one or more networks, and / or implemented by one or more devices, one or more machines and / or one or more networks to implement one or more functions, it should be understood that one or more such entities can implement one or more such functions by themselves or in cooperation, and can be implemented through hardware, firmware and and / or any suitable combination of software. For example, one or more processors may execute one or more sets of programmed instructions as at lea...

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PUM

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Abstract

The present invention may provide methods and systems for determining object types from raster data. A method is provided for determining a color profile from received raster data and printing the raster data. A color profile provides a mapping from the color space of raster data to the color space of a printer, which typically uses CMYK toner or toner. Text color profiles can be employed to print sharper text, while photo color profiles can be employed to produce better images. Raster data includes multiple raster scan queues containing digital pixel values. The method includes determining a number of consecutively repeating digital pixel values ​​and a number of consecutively non-repeating digital pixel values ​​for a plurality of raster scan queues. The color profile is selected based on a determination between repeated digital pixel values ​​and non-repeating digital pixel values. In accordance with the present invention, methods and systems for determining object types from raster data may be provided.

Description

technical field [0001] The present invention generally relates to methods and systems for determining object types from raster data. Background technique [0002] Typical image forming apparatuses use toner or toner to form images on paper. Toner, or toner, most commonly comes in four different colors, cyan, magenta, yellow, and black (CMYK). In typical operation of an image forming apparatus, a print job is received, a color conversion process is performed from an image color space (such as RGB) to a printing color space (such as CMYK), and an appropriate amount of toner or toner of each color is applied to Form the image on the page. However, using a single color of toner or toner each time to produce an image on a page can result in poor quality and visual artifacts. For example, printing a page that consists primarily of black or gray text against a white background with cyan, magenta, yellow, and black toner or toner can produce "color fringing" around the text (some...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G15/00
CPCH04N1/40H04N1/60G06K15/1878H04N1/40062H04N1/6072
Inventor 埃里克·皮尤迈克尔·M·张
Owner KYOCERA DOCUMENT SOLUTIONS INC