Expressive Color Visual Secret Sharing with Color to Gray & Back and Cosine Transform - Chaturvedi, Ratnesh Naresh (Symbiosis International University. Symbiosis Institute of Technology) ; Thepade, Sudeep D. (Savitribai Phule Pune University. Department of Computer Engineering) ; Ahirrao, Swati (Symbiosis International University. Symbiosis Institute of Technology) ; Kothari, Sonali (Symbiosis International University. Symbiosis Institute of Technology)