• Madishetty Saisanthosh Raviteja
• Kondam Radhika Reddy
• Kamsani Akhil
• Burra Raju

Visual cryptography could be a variety of cryptography that permits the visual info to be encrypted in such some way that their decoding may be performed by human sensory system. It encodes a secret binary image into shares of different binary patterns.When the shares are xeroxed onto transparencies, the secret image can be visually decoded by superimposing a set of transparencies. But the shares of the decoded image haven't any that means. Extended visual cryptography was proposed to construct meaningful binary images as shares, but the visual quality is poor. In this , a technique named halftone visual cryptography is implemented to achieve visual cryptography via half toning. This technique utilizes the void and cluster formula to code a secret binary image into halftone shares (images) carrying vital visual info. The simulation shows that the visual quality of the obtained halftone shares is unnoticeably higher than that earned by any on the market visual cryptography technique.

Halftone,GrayScale,VC.

"HALF TONE VISUAL CRYPTOGRAPHY", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.517-522, April-2019, Available :http://www.jetir.org/papers/JETIRAU06075.pdf

"HALF TONE VISUAL CRYPTOGRAPHY", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp517-522, April-2019, Available at : http://www.jetir.org/papers/JETIRAU06075.pdf