Color Extended Visual Cryptography (CEVC) schemes have proved to be a successful method for providing security using color secret images. A half toning technique called error diffusion is commonly used in CEVC to attain a color visual cryptography encryption method that produces meaningful color shares with high visual quality. The major drawback of almost all VC schemes is that the decrypted image after stacking the shares will be of poor quality, though it reveals the original content. In the proposed work, a method overcoming this limitation have been developed and implemented. The method successfully generates good quality image at encryption, with no addition in the computational expenses of conventional CEVC schemes employing half toning methods.
