Toward High Capacity and Robust JPEG Steganography Based on Adversarial Training

Table 5

The effect of different . “—” denotes no JPEG compression.

	Metrics	= 1	= 2	= 3	= 4
—	Decoding_acc	0.9792	0.9813	0.9827	0.9872
	PSNR (dB)	32.44	32.30	32.41	32.18
	SSIM	0.9538	0.9521	0.9534	0.9503
75	Decoding_acc	0.5000	0.9076	0.9440	0.9463
	PSNR (dB)	33.27	28.63	28.26	28.09
	SSIM	0.9619	0.8739	0.8662	0.8562