Zhenjie Bao, Ru Xue. Optical Image Encryption Method Based on Autoencoder[J]. Laser & Optoelectronics Progress, 2021, 58(22): 2210011
- Laser & Optoelectronics Progress
- Vol. 58, Issue 22, 2210011 (2021)
Fig. 1. Architecture of double random phase encoding
Fig. 2. Structure of automatic optical image encryption network
Fig. 3. Neural network structure of automatic optical image encryption network
Fig. 4. Change of encoding loss function with iterations
Fig. 5. Change of decoding loss function with iterations
Fig. 6. Encryption and decryption effects of automatic optical image encryption network。(a) Original images;(b) encryption images; (c) decryption images
Fig. 7. Histograms of plaintext images, encrypted images, and decrypted images in automatic optical image encryption network. (a) Plaintext images; (b) encrypted images; (c) decrypted images
Fig. 8. Scatter plots of adjacent pixels in horizontal, vertical, and diagonal directions of plaintext image and ciphertext image. (a)(b) Horizontal direction; (c)(d) vertical direction; (e)(f) diagonal direction
Fig. 9. PSNR of ciphertext image and plaintext image
Fig. 10. PSNR of decrypted image and plaintext image
Fig. 11. SSIM of decrypted image and plaintext image
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Table 1. Comparison of correlation coefficients in horizontal, vertical, and diagonal directions of ciphertext image
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Table 2. Comparison of PSNR and SSIM obtained by method in Ref. [8] and proposed method
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