Recent study on various surveillance systems has given us idea on research of soft biometrics which enables the recognition of unconstrained human faces. It also comprises of other methods where comparative soft biometrics will show the superior performance of recognition when compared to the categorical soft biometrics. It focuses on several studies which highlighted the ability of retrieval recognition of both unconstrained and constrained environments. These studies will only addresses face recognition on general attributes by raising question on the feasibility of generating the...