A picture compression algorithm selection method and device

A compression algorithm and image technology, which is applied in the field of image processing, can solve the problems of small image recognition accuracy and the inability to guarantee the maximum memory size of images, etc.

Pending Publication Date: 2019-05-28
ONE CONNECT SMART TECH CO LTD SHENZHEN
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Problems solved by technology

[0003] In view of this, the present invention provides a method and device for selecting a picture compression algorithm, the main purpose of which is to solve the problem tha

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  • A picture compression algorithm selection method and device
  • A picture compression algorithm selection method and device
  • A picture compression algorithm selection method and device

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Embodiment Construction

[0030] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0031] The purpose of the embodiments of the present invention is to select a compression method that minimizes the memory size occupied by the compressed pictures and does not affect the correct rate of picture recognition. The selection process is to compare the image recognition accuracy and memory size of compressed pictures compressed by various compression algorithms, and then select an appropriate compression algorithm accord...

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Abstract

The invention discloses a method and a device for selecting a picture compression algorithm, relates to the technical field of picture processing, and aims to solve the problems that the picture compression algorithm in the prior art cannot ensure that the size of a memory occupied by a picture is minimum and the correct rate of picture recognition is not influenced. The method mainly comprises the steps of importing an initial picture; generating compression test cases respectively corresponding to a plurality of preset picture compression algorithms; Executing a plurality of picture compression algorithms respectively corresponding to the compression test cases, generating a plurality of compressed pictures of the initial picture, and storing the plurality of compressed pictures in a preset database; performing OCR recognition on the plurality of compressed pictures, and counting the character extraction success rate of the plurality of compressed pictures; in the compressed pictures, searching a target compressed picture of which the character extraction success rate is 100% and the memory occupied by the picture is minimum; And selecting a picture compression algorithm of the compression test case corresponding to the target compressed picture as a target picture compression algorithm. The method is mainly applied to the picture compression process.

Description

technical field [0001] The invention relates to the technical field of picture processing, in particular to a method and device for selecting a picture compression algorithm. Background technique [0002] When conducting business processing remotely, it is necessary to use OCR (Optical Character Recognition, Optical Character Recognition) to identify ID card pictures, bank card pictures, contract text pages, asset certificates, etc., and use OCR technology to extract text information in the pictures , such as ID number, place of origin, bank card issuing bank and card type, etc. In actual business processing, because the pixels of the cameras that take pictures are all high, the pictures generated after shooting are relatively large, far exceeding the minimum picture quality required by OCR technology for picture recognition. Before transferring photos, in order to increase the transfer speed and reduce the storage pressure on the server, it is necessary to compress the ima...

Claims

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Application Information

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IPC IPC(8): G06F16/174G06F16/11G06T9/00
Inventor 张起
Owner ONE CONNECT SMART TECH CO LTD SHENZHEN
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