Study on Applications of Reversible Information Hiding Algorithms Based on Discrete Cosine Transform Coefficient and Frequency Band Selection in JPEG Image Encryption

It was found that the designed RDH algorithm had a higher embedding capacity, with an average embedding capacity of 37 031 bits at quantization factor = 50, as well as a higher peak signal-to-noise ratio value and a lower file size increase (FSI) value, compared with the other methods.