A Fast Blind Scheme for Color Image Authentication
Abdallah Soualmi, Adel Alti, Lamri Laouamer · 2023
Today, information security has become a stumbling block in the development of useful multimedia applications. Since advanced applications contain sensitive data, attackers prioritized data authentication. This situation makes the transmission of sensitive and confidential data over Internet a prime target for theft and manipulation. Watermarking is a reliable and promising solution to safeguard sensitive data and ensure its authenticity. In this paper, an innovative blind image watermarking technique is presented for personal private data’s validity and secrecy. This technique consists of two major processes, embedding and extracting. The first consists of achieving the watermark embedding on DFT coefficients using A-star algorithm with a chaotic sequence. The second one extracts the watermark using the same embedding steps that succeed without any original or watermarked image. The proposed technique has been tested against a variety of attacks to show its reliability. Experimental results show that the proposed technique maintains strong robustness while producing good image quality.