Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Articles Article Faculty Publications -Articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Securing grayscale image using improved Arnold transform and ElGamal encryption Subject The topic of the resource cryptography; data security; decoding; diffusion; encoding Description An account of the resource The security of sensitive data is critical, and it opens up a wide area of research to find efficient and effective methods to prevent unauthorized access. Our study provides a secure framework for sending visual information over an untrusted channel, such as a social networking site. The proposed framework is a combination of scrambling and encryption techniques. Initially, a hybrid block-wise and pixel-wise scrambling approach is administered to the grayscale image, followed by the Arnold transform, which causes all pixel points to move within the image. Finally, to improve the efficiency of the diffusion process, the asymmetric encryption ElGamal algorithm has been mastered. Peak-signal-To-noise ratio (PSNR), structural similarity index metric (SSIM), number of pixels change rate (NPCR), and unified average changing intensity (UACI) are the metrics utilized to evaluate the efficiency of the proposed scheme. The efficiency of the suggested scheme validates the low-Average PSNR value of &lt;9 dB and the SSIM average value of &lt;0.01 for the encrypted images. The NPCR and UACI values achieved in our study are above the threshold values of 99.6% and 33.33%, respectively, exhibiting the strength of the proposed framework. 2022 SPIE and IS&amp;T. Creator An entity primarily responsible for making the resource Thomas S.; Krishna A. Source A related resource from which the described resource is derived Journal of Electronic Imaging, Vol-31, No. 6 Publisher An entity responsible for making the resource available SPIE Date A point or period of time associated with an event in the lifecycle of the resource 2022-01-01 Identifier An unambiguous reference to the resource within a given context <a href="https://doi.org/10.1117/1.JEI.31.6.063012" target="_blank" rel="noreferrer noopener">https://doi.org/10.1117/1.JEI.31.6.063012</a> <br /><br /><a href="https://www.scopus.com/inward/record.uri?eid=2-s2.0-85147512150&amp;doi=10.1117%2F1.JEI.31.6.063012&amp;partnerID=40&amp;md5=7cc0d92cfd2e5426253037f1910c5b39" target="_blank" rel="noreferrer noopener">https://www.scopus.com/inward/record.uri?eid=2-s2.0-85147512150&amp;doi=10.1117%2f1.JEI.31.6.063012&amp;partnerID=40&amp;md5=7cc0d92cfd2e5426253037f1910c5b39</a> Rights Information about rights held in and over the resource Restricted Access Relation A related resource ISSN: 10179909; CODEN: JEIME Format The file format, physical medium, or dimensions of the resource Online Language A language of the resource English Type The nature or genre of the resource Article Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Thomas S., Christ University, School of Engineering and Technology, Department of Computer Science and Engineering, Bangalore, Karnataka, India; Krishna A., Christ University, School of Engineering and Technology, Department of Computer Science and Engineering, Bangalore, Karnataka, India, Rajagiri College of Social Sciences (Autonomous), Department of Computer Science, Cochin, Kerala, India