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A batch image encryption method, decryption method and system

An encryption method and image technology, applied in the field of image processing, can solve problems such as difficulty in promotion and complexity, and achieve the effect of reducing storage space, easy decoding, and optimizing storage.

Inactive Publication Date: 2020-01-17
NEW FOUNDER HLDG DEV LLC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For this reason, the technical problem to be solved by the present invention is that the image encryption method in the prior art adopts mathematical transformation, which is complicated and difficult to popularize, thus proposing a simple, convenient and easy-to-implement batch image encryption method, decryption method and system

Method used

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  • A batch image encryption method, decryption method and system
  • A batch image encryption method, decryption method and system
  • A batch image encryption method, decryption method and system

Examples

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Embodiment 1

[0057] A batch image encryption method is provided in this embodiment, such as figure 1 shown, including the following steps:

[0058] S1. Split the batch of image files according to the image format structure, and extract image description information and data information. When splitting an image, the description information and data information of the image are split according to the format structure of the image, and the description information includes feature description information, color description information, and the like.

[0059] S2. Divide the descriptive information into common descriptive information and individual descriptive information. The common descriptive information refers to descriptive information that can be shared among batch images. Information refers to the unique description information of each image, such as image width, height, bit depth, resolution, number of channels, etc.

[0060] S3. Store and index the data information, personality descri...

Embodiment 2

[0064] A batch image encryption method is provided in this embodiment, comprising the following steps:

[0065] S1. Split the batch of image files according to the image format structure, and extract image description information and data information.

[0066] S2. Divide the description information into common description information and individual description information. The common description information refers to the description information that can be shared in batch images, such as palette; the individual description information refers to the unique description of each image. Information, including image width, height, bit depth, resolution, number of channels, compression method, etc.

[0067] S3. Store and index the data information, personality description information, and commonality description information.

[0068] In this embodiment, storage is performed according to a self-defined structure, and the self-defined structure includes: a header information block of ...

Embodiment 3

[0073] A batch image decryption method is provided in this embodiment, such as figure 2 shown, including the following steps:

[0074] S21. Read the common descriptive information according to the image common descriptive information index and the number of offset bytes recorded in the index structure information in the header information block;

[0075] S22. Read the personality description information according to the image personality description information index and the number of offset bytes recorded in the index structure information in the header information block;

[0076] S23. Extract the data information of the image according to the offset of the corresponding image information recorded in the personality description information in the image data information block;

[0077] S24. Combining the commonality description information, individuality description information and image data information to restore the original image.

[0078] The decryption algorithm in th...

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Abstract

The invention discloses a batch image encryption method, comprising steps of performing splitting on each image file, dividing the image file into common character description information, personality description information and data information according to image format information, storing the three kinds of information respectively and setting indexes, and packing all data to generate an encrypted graph file. The batch image encryption method of the invention forms an encryption mode through afresh defining the description mode of image information , can better realize the optimized storage of the image, can only store the common character description information of the common image for once, and can reserve the personality description information of the image and image data information. The batch image encryption method of the invention not only dramatically reduces the storage overhead and data encryption complexity without the complex algorithm support, but also provides convenient decryption. The decoding can be realized as long as the encryption rule is known. The batch image encryption method of the invention reduces the probability of occurrence of the messy code, and is an encryption mode which is simple, easy, and fast and can reduce the storage space. Besides, the invention also provides a corresponding decryption method.

Description

technical field [0001] The invention relates to an image processing method, in particular to an image compression storage method and device. Background technique [0002] A digital image is an image produced by capturing an actual picture with an input device such as a scanner or a camera. A digital image is composed of a series of ordered pixels, and the pixel points, intensity and color are described by numbers. The storage capacity of the description information file of the digital image is relatively large. Commonly used storage formats in computers are: BMP, TIFF, EPS, JPEG, GIF, PSD, PDF and other formats. [0003] As more and more information is stored and circulated in image format, information security is becoming more and more important. This requires that the image carrying the information be encrypted to ensure the security of the information. At the same time, there must be a corresponding decryption method to ensure the image after decryption and restoration....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T1/00
Inventor 岳铁铸任仁
Owner NEW FOUNDER HLDG DEV LLC
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