A color image encryption compression and super-resolution reconstruction system and method

Abstract

The invention discloses a color image encryption compression and super-resolution reconstruction system and method. The system includes a preprocessing module, an encryption compression module, a decryption module, and a reconstruction module; the original image is input to the preprocessing module, and the preprocessing module processes the original image Carry out preprocessing operation, after obtaining the coding sequence, input the original image and coding sequence to the encryption compression module; the encryption compression module encrypts and compresses the original image and coding sequence, obtains the encrypted compressed image file and the encrypted coding sequence, and sends them to the decryption module; the decryption module decrypts the encrypted compressed image file and the encrypted code sequence, obtains an interpolated image and a decrypted image, and sends them to the reconstruction module; the reconstruction module obtains local features, feature weight maps and upsampled images of the interpolated image, The initial reconstructed image is generated by fusion, and then the decrypted image is used to correct the initial reconstructed image, and the final reconstructed image is output. The invention can effectively improve the reconstruction quality of the reconstructed image.

Description

technical field [0001] The present invention relates to the field of image processing, more specifically, to a color image encryption compression and super-resolution reconstruction system and method. Background technique [0002] In traditional communication, in order to reduce data transmission and storage costs, images and video data are compressed and then encrypted to ensure security, and finally transmitted to the receiver through a public channel. After receiving the compressed and encrypted data, the recipient decrypts and decompresses the data, and the decryption key is obtained from the secure channel, such as figure 1 As shown, this process is called Compression-then-Encryption (CTE) system; with the development of cloud computing, a large number of users and enterprises will choose to store data in the cloud in order to reduce data storage and management costs. In order to solve the security problems caused by data storage in the cloud, it will choose to encrypt...

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Problems solved by technology

[0005] In order to overcome the defects of poor quality of super-resolution reconstruction of encrypted color images in the prior art, the present invention provides a color image encryption compression and super-resolution reconstruction system and method, when performing super-resolution reconstruction of encrypted color images , make full use of high-frequency feature information, make the pixels of the reconstructed image closer to the pixels of the original image, and effectively improve the reconstruction quality of the reconstructed image

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