Construction of color Extended Visual Cryptographic scheme using Back Propagation Network for color images

Extended Visual Cryptography is a method of cryptography that reveals the target image by stacking meaningful images. The methods used so far produce an image that is larger than the size of the original image. This paper proposes a method that uses Back Propagation Network (BPN) for extended visual cryptography. BPN is used to produce the two shares. The size of the image produced is same as that of the original image. Experimental results show that the image quality is also good.