General Framework of Reversible Watermarking Based on Asymmetric Histogram Shifting of Prediction Error

Table 2

The reduced effect of shifting distortion of asymmetric error histogram.

Cover images	QS				RSD
	Tsai’s method	Proposed method	Tsai’s method	Proposed method
Lena	105676	101691	5.251	2.471	3985
Elaine	109079	62008	7.953	4.184	47071
Baboon	111621	63112	17.46	8.687	48509
Peppers	107224	57351	6.600	3.472	49873
Boat	105576	56876	4.924	2.462	48700
Jet	84719	39103	1.738	0.5876	45616
Average	103980	63357	7.321	3.644	40626