Biometrics inspired watermarking based on a fractional dual tree complex wavelet transform

► A novel biometrics inspired watermarking technique is proposed. ► The watermark is embedded in a fractional dual tree complex wavelet transform domain using SVD. ► A method is also proposed to generate keys from biometrics efficiently. ► To prevent the ambiguity problem of SVD-based techniques, a verification step is casted. ► The security, attack, and comparative analysis confirms the high security, efficiency, and robustness of the proposed technique.