Method and device for page dot matrix compression

A page and dot matrix technology, applied in the field of page dot matrix compression method and device, can solve the problem of wasting storage space, etc.

Active Publication Date: 2013-05-08
PEKING UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention provides a page dot matrix compression method and device. The method and device provided by the invention are used to solve the problem of repeated storage of page dot matrix data reused across pages in the prior art, which wastes storage space

Method used

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  • Method and device for page dot matrix compression
  • Method and device for page dot matrix compression
  • Method and device for page dot matrix compression

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Embodiment Construction

[0029] An embodiment of the present invention provides a method for compressing page dot matrix, comprising: performing RIP rasterization processing on a variable data printing job including multiple printed pages, to obtain multiple color-separated page dot matrix after decomposing each printed page; Sequentially compare each color separation page dot matrix of the current printing page with the color separation page dot matrix corresponding to the previous printing page, and record the difference between the number of bytes LI and the page content of the current printing page and the previous printing page content The number of bytes LD of the same content and the corresponding differential byte sequence; compress and encode the number of bytes LI of the same content and the number of bytes LD with differences in page content.

[0030] In actual production applications, commodity packaging bags or labels are typical variable data operations. The only difference between differ...

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PUM

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Abstract

The invention discloses a method and device for page dot matrix compression, and is applicable to the technical field of digital printing. The method comprises the following steps: a variable data presswork with a plurality of printing pages is processed in a rasterization mode through a routing information protocol (RIP), a plurality of color separation page dot matrices decomposed by each printing page are obtained; each color separation page dot matrix on the present printing page and the corresponding color separation page dot matrix on the last printing page are compared in a sequence mode, an identical content byte number L I of the present printing page, and the last printing page and a content difference byte number L D and corresponding different byte sequences are recorded; the identical content byte number L I of the present printing page and the last printing page and the content difference byte number L D are compressed and encoded. By means of the method and the device for page dot matrix compression, the compression effect of each page only depends on the similarities between the present printing page and the last printing page, and the data can adapt to the page dot matrix of a variable data presswork based on a plurality of template pages.

Description

technical field [0001] The invention relates to the technical field of digital printing, in particular to a page dot matrix compression method and device. Background technique [0002] With the continuous development of digital printing technology, especially the continuous maturity and development of inkjet digital printing machines, Variable Data Printing (Variable Data Printing, referred to as VDP) has been more and more popular in industries such as finance, postal services, and telecommunications packaging. Wide range of applications, the main applications are: personalized bills, personalized bills, personalized advertisements, personalized labels, etc. [0003] The characteristic of variable data printing is that the content can be personalized and variable, and can be different from sheet to sheet. The most typical variable content is barcode (one-dimensional barcode and two-dimensional barcode), variable text (including numbers) string (such as name, address, date,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N1/41
Inventor 黄渭平邢笑笑李琳怡
Owner PEKING UNIV
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