Security is one of the important characteristics while transmitting data particularly medical images and patient information over cyberspace without any loss information. In proposed method LWT, DCT SHA-256 hashing techniques are used to provide security detect tampers in ROI images. this paper, image segmented into three regions, region interest (ROI), non (RONI) BORDER regions. an area that h...

Abstract To provide the foundations for economic and social prosperity, countries worldwide need to be making a term investment in their building assets. However, there is lack of systematic approach, such as manufacturing innovations, maximize values components materials its entire lifecycle. Steel-concrete composite floor systems are one most cost-effective construction multi-storey steel bui...

Online communication platforms prompted the versatility and easiness in communication. That’s why these are witnessing abrupt rise their usage. On other side, it can lead to unauthorized replication alteration of digital images that raises security concerns. Ensuring robustness, imperceptibility watermarking has become a critical task. SVD-LWT technique along with entropy is presented Y-channel...

Biometric Watermarking pertains to the integration of biometrics with watermarking. The paper presents an extension to the work proposed in [1]. In this paper, a biometric watermarking algorithm is presented which improves the snr ratio between the original and watermarked image as also the attack resilience hence providing enhanced protection against image tampering. The LWT algorithm has been...

This article proposes an image watermarking scheme to improve the robustness and security of watermark against several attacks. To achieve this, image normalization is utilized where affine transformation is applied on the image and which makes it as invariant to geometric transformations. The Lifting Wavelet Transform (LWT) and block based Discrete Cosine Transform (DCT) is applied to the cove...

This paper compares the performance of face image retrieval system based on discrete wavelet transforms and Lifting wavelet transforms with principal component analysis (PCA). These techniques are implemented and their performances are investigated using frontal facial images from the ORL database. The Discrete Wavelet Transform is effective in representing image features and is suitable in Fac...