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Image file restoration method

An image file and repair method technology, applied in the field of image processing, can solve problems such as bad sectors of file storage media, failure to form normal images, unrecognizable and unusable graphic information, etc., to achieve the effect of repair

Active Publication Date: 2020-04-17
STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in daily life and work, the file is often irreversibly damaged due to damage to the storage medium and virus damage. When the storage medium is damaged, it is also impossible to completely read the important sectors of the header of the JPG format file due to the problem of bad sectors and blocks of the storage medium. the code
As a result, the JPG format file cannot be opened at all, or the pixel blocks of the picture appear disorderly after opening, and cannot form a normal image. The important graphic information in the file cannot be recognized and used, and the common JPG format repair tools on the market are completely ineffective for this problem.

Method used

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  • Image file restoration method

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Embodiment

[0031] An embodiment of the present invention proposes a method for repairing an image file, the method comprising:

[0032] Get damage information for image files;

[0033] Selecting a sample file according to the damage information;

[0034] Extracting the offset code corresponding to the damaged information in the sample file, and performing code repair on the image file according to the offset code.

[0035] The sample file is selected according to the damage information; the offset code corresponding to the damage information in the sample file is extracted, and the code of the image file is repaired according to the offset code, thereby realizing the repair of the image file.

[0036] Optionally, get the damage information of the image file, including:

[0037] Obtaining the damage characteristics of the virus, and determining the sector and offset address of the image file fixedly cleared or encrypted by the virus according to the damage characteristics; or,

[0038]...

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PUM

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Abstract

The invention discloses an image file restoration method. The method comprises the steps of obtaining damage information of an image file; selecting a sample file according to the damage information;and extracting an offset code corresponding to the damage information in the sample file, and performing code repair on the image file according to the offset code. The sample file is selected according to damage information; and an offset code corresponding to the damage information is extracted in the sample file, and code repair is performed on the image file according to the offset code, thereby realizing repair of the image file.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to an image file restoration method. Background technique [0002] JPG format JPEG coded graphic file is a lossy compressed graphic format file that is widely used at present. This file format uses lossy compression to remove redundant images and color data. Display very rich and vivid images, that is, you can get better picture quality with less disk space. At present, this format file is mainly used in the fields of construction, network, digital media, judicial evidence collection, etc., and is mainly stored in computer storage media as graphic electronic evidence, website graphic elements, and daily life commemoration. However, in daily life and work, the file is often irreversibly damaged due to damage to the storage medium and virus damage. When the storage medium is damaged, it is also impossible to completely read the important sectors of the header of the JPG form...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T1/60G06T5/00
CPCG06T1/60G06T5/77Y02D10/00
Inventor 朱珠严华梁花韩世海李洋徐鑫张森徐镭洋晏尧雷娟张伟景钰文於舰侯兴哲陈涛周全宫林李松浓
Owner STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST
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