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Color image encryption effect evaluation method

A color image and image quality assessment technology, applied in image enhancement, image analysis, image data processing, etc., can solve problems that cannot meet the needs of subjective and objective evaluation of the effect of encryption schemes

Inactive Publication Date: 2021-07-23
王华元
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Problems solved by technology

However, it has certain limitations, and it cannot meet the needs of image encryption researchers for subjective and objective evaluation of the encryption scheme.

Method used

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  • Color image encryption effect evaluation method
  • Color image encryption effect evaluation method
  • Color image encryption effect evaluation method

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Embodiment Construction

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0042] According to an embodiment of the present invention, a color image encryption effect evaluation method is provided.

[0043] Such as Figure 1-Figure 4 As shown, the color image encryption effect evaluation method according to the embodiment of the present invention includes the following steps:

[0044] Establish image quality evaluation indicators based on AHP in advance, including quality scale information, color information, exposure information, sharpness information and focus in...

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Abstract

The invention discloses a color image encryption effect evaluation method, and relates to the technical field of image encryption evaluation, and the method comprises the steps: building image quality evaluation indexes based on AHP in advance, calibrating the scale value of each index comparison, building a judgment matrix, determining a weight value, and obtaining the evaluation score of a color image based on the indexes as first reference value for evaluation and pure quaternion for calibrating each pixel of the color image; as singular value of the pure quaternion, acquiring color information and structure information of the image, and taking the color information and the structure information as a second reference value for evaluation; the subjective evaluation method based on the AHP is realized, multi-index evaluation, judgment matrix construction and weight obtaining are performed on image effects processed by different encryption methods through organizing students, the requirements of image encryption researchers on subjective and objective evaluation on the effect of an encryption scheme are met, the researchers can be helped correct and improve the encryption scheme. The research of image encryption is promoted, and the limitation is wide.

Description

technical field [0001] The invention relates to the technical field of image encryption evaluation, in particular to a color image encryption effect evaluation method. Background technique [0002] In recent years, the security of digital images has attracted people's attention. Researchers have created many image encryption methods. Their protection of images improves the security and effective transmission of image information. The creation of image encryption methods And innovation is still going on in an orderly manner. [0003] With the emergence of image encryption methods, the evaluation of image encryption performance is also on the agenda. At present, the evaluation methods of image encryption effect are mainly divided into subjective evaluation methods and objective evaluation methods. The traditional subjective evaluation method analyzes the encryption effect of the image by using human vision and subjective evaluation ability. This evaluation method is simple a...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06T7/90
CPCG06T7/0002G06T2207/10024G06T7/90
Inventor 王华元刘晖杨佳
Owner 王华元
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