Secure Color Visual Secret Sharing Scheme Using Shifting Coefficient With No Pixel Expansion
The focus is to design a framework for a color visual secret sharing scheme highlighting towards its security and pixel expansion problems. A Secret image has been diffused in between two meaningful cover images called share images. The participant who stacks both the share images can only obtain the secret image. In addition to that an extra confidential image has been embedded in share images to provide additional security in promoting the authentication to the participant and it carries the lifetime of the secret image. To reveal the extra confidential image, place the first share constantly and shift the second share to some unit.