Image encryption method, image encryption device, electronic equipment and readable storage medium
An encryption method and image technology, applied in the field of image processing, can solve problems such as large amount of data and large data storage space, and achieve the effect of improving security and reducing the amount of calculation.
Active Publication Date: 2021-06-11
南方电网互联网服务有限公司
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[0003] For color images, in order to realize the encryption processing of color images, the color image encryption methods based on quaternion discrete Fourier transform, quaternion Gyrator transform and multi-parameter fractional quaternion Fourier transform are widely used, but using The quaternion matrix represents a color image, the amount of calculated data is large and requires a large data storage space
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[0077] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments of the present application, every other embodiment obtained by those skilled in the art withou...
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The application provides an image encryption method, an image encryption device, electronic equipment, and a readable storage medium. Based on the acquired image to be encrypted, the first ternary matrix of the image to be encrypted in the spatial domain is constructed; the generation and size of the image to be encrypted The same first random real number matrix and second random real number matrix; based on the first ternary number matrix and the first random real number matrix, determine the second ternary number matrix of the image to be encrypted in the frequency domain; based on the second ternary number matrix The matrix and the second random real number matrix determine the third ternary number matrix representing the encrypted ciphertext image of the image to be encrypted. A color image is represented by a ternary matrix, and a randomly generated random real number matrix having the same size as the color image is used to encode the image to be encrypted by using the ternary number matrix and the random real number matrix of the image to be encrypted Encryption, while reducing the amount of calculation, can also improve the security of image encryption.
Description
technical field [0001] The present application relates to the technical field of image processing, in particular to an image encryption method, an image encryption device, electronic equipment and a readable storage medium. Background technique [0002] With the continuous development of computer communication technology, more and more people communicate through the network, and a large number of pictures are transmitted on the network every day. However, images often contain a lot of personal privacy, such as faces, irises, fingerprints, and the like. Therefore, in order to ensure the security of the content in the image, it is often necessary to encrypt the image. [0003] For color images, in order to realize the encryption processing of color images, the color image encryption methods based on quaternion discrete Fourier transform, quaternion Gyrator transform and multi-parameter fractional quaternion Fourier transform are widely used, but using The quaternion matrix r...
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IPC IPC(8): G06F21/60G06T1/00
CPCG06F21/602G06T1/0021
Inventor 邵珠宏尚媛园刘铁丁辉张伟功王晶赵晓旭
Owner 南方电网互联网服务有限公司