Security Enhanced CTS Image Watermarking Technique using Combined DWT-DCT

A Cheque Truncation System (CTS) expedites the clearing of cheques. The CTS electronically transmits a security deposit cheque to the drawee branch. Attackers can corrupt data and duplicate or diminish the peculiarity of the cheque. Consequently, security and privacy are critical. Therefore, the security and copyright protection of cheque is essential. In this paper, a digital watermarking technique that combines DWT and DCT for copyright protection and cheque image security has been proposed. The proposed method provides better resilience, efficacy, and is unnoticeable to the watermarked image, and it obtains a high PSNR value. Additionally, it may safeguard the information even after it has been decrypted.