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Compression method and device for latticed page

A compression method, compression method technology, applied in the direction of image communication, electrical components, etc., can solve the problems that the compression ratio and compression rate cannot be well alleviated, and achieve the effect of alleviating the contradiction between the compression rate

Inactive Publication Date: 2014-08-06
PEKING UNIV FOUNDER GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The embodiment of the present invention provides a dot matrix page compression method and device, which is used to solve the problem that the same compression method is used to compress the entire dot matrix page in the prior art, and the contradiction between the compression ratio and the compression rate cannot be well alleviated.

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  • Compression method and device for latticed page
  • Compression method and device for latticed page
  • Compression method and device for latticed page

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Embodiment Construction

[0024] An embodiment of the present invention provides a dot matrix page compression scheme, which is used to solve the problem in the prior art that compressing the entire dot matrix page using the same compression method cannot well alleviate the contradiction between the compression ratio and the compression rate.

[0025] The main realization principles, specific implementation modes and corresponding beneficial effects that can be achieved of the technical solutions of the embodiments of the present invention will be described in detail below in conjunction with each accompanying drawing.

[0026] Such as figure 1 As shown, it is a schematic diagram of a dot matrix page. In this dot matrix page, various element types such as blank elements, text elements, graphic elements, and image elements are included. For example, English letters and Arabic numerals in the picture are text elements; stars and hexagons are graphic elements; landscape pictures are called image elements;...

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Abstract

The invention discloses a compression method for a latticed page, comprising the following steps: dividing a latticed page to be compressed into at least two latticed page parts; processing each of the divided latticed page parts, to determine the type of the elements in the maximum proportion in each of the latticed page parts; and selecting a corresponding compression manner to compress the latticed page part according to the determined type of the elements in the maximum proportion. Accordingly, the invention provides a compression device for a latticed page. With a technical scheme disclosed by the invention, the problem that compressing the whole latticed page in the same compression manner cannot well alleviate the contradiction between the compression ratio and the compression speed in the prior art can be solved.

Description

[0001] This application is a divisional application for the invention patent application with the application number 200810223362.1 and the invention name "Dot Matrix Page Compression Method and Device" submitted by the applicant on September 26, 2008. technical field [0002] The invention relates to the field of computer image processing, in particular to a dot matrix page compression method and device thereof. Background technique [0003] In the field of computer graphics and image processing, a raster image processor (RIP, Raster ImageProcessor) is a method for converting formats such as PS (PostScript, a programming language used to describe page content, whose specification is formulated by Adobe Corporation of the United States) to or PDF (Portable Document Format, an electronic document format used to describe the content of the page, and its specification is formulated by the Adobe Corporation of the United States) to convert the page described in the format into a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N1/41H04N1/40
Inventor 康俊杰杨斌赵晖
Owner PEKING UNIV FOUNDER GRP CO LTD