An extended visual cryptography without pixel expansion for halftone images

S.Aruna , K Vikas , V Manikanta

Cryptography, Image Processing, Secret Sharing

Module 3: Generating Shares We calculate intensity values of halftone image through Floyd algorithm this algorithm is used to hide data at background image. We calculate the PSNR & MSE values for both input & halftone image. Module 4: Overlapping of shares to generate decrypted image Embedding input image with watermark image by floyd and obtaining watermarked image as output. Dct coefficients are then quantized, coded and transmitted. The JPEG receiver decodes the quantized DCT coefficients, computes the inverse two-dimensional DCT of each block, and puts the blocks back together into single image. . For typical images, many of the DCT coefficients have values close to zero.

Published Paper   E-Certificate

"An extended visual cryptography without pixel expansion for halftone images", IJSDR - International Journal of Scientific Development and Research (www.IJSDR.org), ISSN:2455-2631, Vol.1, Issue 5, page no.163 - 165, May-2016, Available :https://ijsdr.org/papers/IJSDR1605033.pdf

Volume 1 Issue 5, May-2016

Pages : 163 - 165

Paper Reg. ID: IJSDR_160241

Published Paper Id: IJSDR1605033

Downloads: 000347057

Research Area: Engineering

Country: kanchepuram, Tamil nadu, India

Published Paper PDF: https://ijsdr.org/papers/IJSDR1605033

Published Paper URL: https://ijsdr.org/viewpaperforall?paper=IJSDR1605033

ISSN: 2455-2631 | IMPACT FACTOR: 9.15 Calculated By Google Scholar | ESTD YEAR: 2016

An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 9.15 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator

Publisher: IJSDR(IJ Publication) Janvi Wave

This work is licensed under a Creative Commons Attribution 4.0 International License and The Open Definition