Digital Data Protection using DWT and DCT for Security
Volume: 10 - Issue: 01 - Date: 01-01-2021
Approved ISSN: 2278-1412
Published Id: IJAECESTU331 | Page No.: 117-122
Author: Priya Soni
Co- Author: Nilesh Shrivastava
Abstract:-– Today Data security is major concern. In this paper, is proposed data hiding (DH)
algorithmic rule is projected for digital images. Rather than attempting to keep the PSNR value
high, the projected algorithmic rule enhances the contrast of a host image to boost its visual
quality. The side info is embedded in conjunction with the message bits into the host image so the
initial image is totally retrievable. The proposed the discrete wavelet transforms and discrete
cosine transform techniques are used. To our greatest knowledge, it's the primary algorithmic rule
that achieves image contrast enhancement by DH(). Moreover, the analysis results show that the
visual quality is preserved once a considerable amount of message bits have been embedded into
the contrast-enhanced images, even higher than 3 specific MATLAB functions used for image
contrast enhancement.
Key Words:-Contrast enhancement, DWT, DCT, location map, reversible data hiding, and visual quality,
Area:-Engineering
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