A REVIEW ON SECURITY IN VCS USING ERROR DIFFUSION METHOD

Cryptographic method which permits visual messages to be encrypted in a way to decrypt that can be done by the man power visual system by not using the computers is Visual Cryptography Scheme. A network terminology which is highly developed and information processed through the web browser easily and suitably. Concurrently, the safety measure problem occurred during the process of transmit. The objective of this technique to cryptosystem which can be able to encrypt whatever the picture representation, then the picture which is encrypted during interception by any person will result in wicked intentions at the time of transmit the image that can't able to decode the image. Visual Cryptography Scheme permits the encoding process for closet picture into n shares circulated to n contestant. The attractiveness of this system to set a certified contestant that are able to make progress the closet image without understanding of cryptographic and working out mechanism. Extended visual cryptography scheme is a type of Visual Cryptography System which has thoughtful shares. Error diffusion method help us to examine to gain better value recreate the image to increase the safety measures with optimal Pixel Expansions.