A Secure and Robust Autoencoder-Based Perceptual Image Hashing for Image Authentication

Table 5

Hash length comparison of various hashing algorithms.

Authors	Hash length
Z. Huang et al. [44]	720 bits
C. M. Pun et al. [39]	262 digits
C. P. Yan et al. [28]	302 bits
Z. Tang et al. [20]	206 bits
F. Khelaifi et al. [46]	100 digits
H. Lao et al. [31]	316 bits
Q. Shen et al. [64]	452 digits
L. Du et al. [43]	512 bits
Proposed method	64 bits