Quantum image chaos encryption method based on multi-level wavelet transform and Fourier transform
Penghui Liu · 2022 2nd International Conference on Computer Science, Electronic Information Engineering and Intelligent Control Technology (CEI) · 2022
In this paper, a new quantum image compression and encryption algorithm is proposed by combining quantum discrete cosine transform and hyperchaotic system. The algorithm performs the quantum discrete cosine transform on the quantum grayscale image, gets the spectrum of quantum discrete cosine transform, then compresses the quantum grayscale image, and finally uses the hyperchaotic system to encrypt the compressed quantum grayscale image to get the ciphertext image. Multi-spectrum, continuous images make it difficult and burdensome to store, process and transmit image data. Image compression technology takes advantage of the redundancy of image information and the defects of human vision and other characteristics to solve the problem of image information redundancy. The combination of quantum image encryption and quantum image compression not only improves the security of quantum images but also saves network transmission bandwidth.