Systematic Survey on Visually Meaningful Image Encryption Techniques

Due to advancements in technology, digital images are widely used various applications like medical field, military communication, remote sensing, etc. These may contain sensitive and confidential information. Therefore, required be protected from unauthorized access. Many image protection techniques have been proposed past years. The most common technique protect the is encryption. In this technique, a secret key an encryption algorithm change plain into encrypted image. looks noisy can easily attracts attacker’s attention. If gets captured stacked, information revealed. regard, Visually Meaningful Encrypted Image (VMEI) developed, which initially encrypts original then hides it reference final normal Hence, VMEI provides more security as compared simple techniques. systematic survey on existing presented paper. divided different categories based their characteristics. Moreover, paper elaborates investigates improvements analyses performed evaluation parameters. parameters such attacks, quality analysis, noise attacks. Finally, discusses potential future challenges of