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Image compression method and device thereof

An image compression, sub-image technology, applied in image communication, electrical components, etc., can solve the problems of memory space failure, compression failure, etc.

Active Publication Date: 2016-04-06
NEW FOUNDER HLDG DEV LLC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The embodiment of the present invention provides an image compression method and its device, which are used to solve the problem of compression failure due to the failure to apply for memory space when compressing large data volume images

Method used

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  • Image compression method and device thereof
  • Image compression method and device thereof

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Embodiment Construction

[0022] The embodiment of the present invention provides an image compression method and its device, which are used to solve the problem that image compression fails due to the need to apply for a larger memory space during the compression process of a large-scale image, and the application for the memory space fails. Realize the normal compression and complete output of large data volume images.

[0023] The image with a large amount of data is an image with an image data amount exceeding 100M. In the process of compressing the image with a large amount of data, there is a problem of failure to apply for memory space due to the large amount of image data. For example: if the printing paper size is A3 (297×420mm) and the printing resolution is 1200×1200dpi, each page contains a total of 278403102 pixels, and each pixel needs RGB3 bytes to describe its color, then a total of 835209306Byte of memory space to store one page of image data. If you want to compress the entire page o...

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Abstract

The invention discloses an image compression method and an image compression device. The image compression method and the image compression device are used for solving the problem that compression fails due to the fact that application of memory space fails when an image with a large data size is compressed. The image compression method comprises the steps of dividing an original image into a plurality of sub-images; carrying out compression on the sub-images in sequence, and obtaining compressed sub-images; and carrying out splicing on the compressed sub-images to obtain a complete compressed image.

Description

technical field [0001] The invention relates to the technical field of digital printing, in particular to an image compression method and device thereof. Background technique [0002] With the continuous development of digital printing technology, the printing format, precision and grayscale of digital printing machines are continuously improved, so that the amount of printing data per page of digital printing machines is continuously increasing. [0003] In order to facilitate users to observe the print data and preview the print effect, the print management software of the digital printing machine can read the image data in the print job and display the image in a specific window of the print management software. For images with a large amount of data, the amount of image data generated by the image extraction device is quite large, resulting in slow image processing and data transmission. Image compression technology is used to compress the images with large amounts of da...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N1/41
Inventor 邢笑笑
Owner NEW FOUNDER HLDG DEV LLC
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