Achieving Lightweight Privacy-Preserving Image Sharing and Illegal Distributor Detection in Social IoT

Table 3

Comparison with other algorithms.

Algorithm	[30]	[38]	[39]	[40]
Embedding operation^1 and domain^2	LSB Flp. (S)	LSB Flp. (S)	Add. Emb. (S)	LSB Rep. (S)
Embedding time per bit ()			36	109
Algorithm	[41]	[42]	[43]	Our scheme
Embedding operation^1 and domain^2	Loc. Map (S)	Hist. Shft. + Homo. Add. Emb. (S)	GWT + Alpha Ble. (T)	Add. Emb. (T)
Embedding time per bit ()	9		20	11

¹LSB Flp.: LSB flipping; Add. Emb.: additive embedding; LSB Rep.: LSB replacement; Loc. Map: location map; Hist. Shft.: histogram shifting; Homo. Add. Emb.: homomorphic additive embedding; GWT: graph wavelets transform; Alpha Ble.: alpha blending. ²“S” represents spatial domain embedding; “T” represents transformed domain embedding.