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All Journal Journal of Research in Social Science and Humanities Review: Journal of Multidisciplinary in Social Sciences
Shofro, Puteri Awaliatush
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Religion Arts Humanities Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Social Sciences Other

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Increasing The Payload of Reversible Data Hiding Scheme Using Modified Pixel Value Ordering (PVO) Shofro, Puteri Awaliatush; Barmawi, Ari Moesriami
Review: Journal of Multidisciplinary in Social Sciences Vol. 1 No. 05 (2024): April 2024
Publisher : Lentera Ilmu Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59422/rjmss.v1i05.326

Abstract

Reversible Data Hiding (RDH) is a kind of data hiding technique that allows the embedded data can be retrieved as needed and can restore the stego image exactly as the original image after the extraction of embedded data. Recently, RDH has been applied for medical record management, where any distortion of digital images is not allowed. Many new RDH techniques have been developed such as Pixel Value Ordering (PVO). This method is very popular because it has the Management of Medical Records: Facts and Figures for Surgeons advantage of reducing the number of pixels shifted, such that it can improve the stego image quality. However, the existing method has a low embedding capacity (31%). To overcome this problem, this paper proposed a modified Pixel Value Ordering where the difference value is expanded after sorting the pixel values resulting from the embedding process based on different values of 0 and 1. In this case, the difference values of -2, 0, 1, and 3 are used to embed the data, instead of only using the difference values 0 and 1. The proposed method also uses the frequency of bit 0 and 1 in the message to determine the pixels mapping that can be used to embed the message. The experiments results show that the proposed method achieved an average embedding capacity (37%) and obtained a higher PSNR value of 61 dB.
Service Quality, Price, and Customer Loyalty: Moderating Role of Customer Satisfaction Nuranti, Barida Rakhma; Rahayu, Sri; Ansori, Ayu Diana; Shofro, Puteri Awaliatush; Tibaroiya, Muhammad Ardana; Nugroho, Adhi
Journal of Research in Social Science and Humanities Vol 4, No 2 (2024)
Publisher : Utan Kayu Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47679/jrssh.v4i2.207

Abstract

The purpose of this study is to test and analyze the influence of service quality and price on customer satisfaction, test and analyze the influence of service quality, price, and customer satisfaction on customer loyalty. In addition, this study aims to examine the indirect influence between price and service quality on customer loyalty through customer satisfaction. A quantitative approach was used in this study, with the population and sample being consumers of Pamella Supermarket in D.I. Yogyakarta. The sampling technique uses purposive sampling, with the criteria of at least 17 years old, male and female gender, having shopped at Pamella Supermarket at least 2 times. The data was collected through the distribution of online questionnaires to respondents, and the data was processed with SEM PLS version 3. The results of the study found that service quality and price have an effect on customer satisfaction. Service quality and customer satisfaction have a positive and significant effect on customer loyalty. However, price does not have a significant effect on customer loyalty. In addition, this study proves that price and service quality have a direct and indirect effect on customer loyalty, namely through customer satisfaction. In other words, the consumer satisfaction variable can act as a mediating variable in the influence of price and service quality on Pamella Supermarket customer loyalty. This research provides theoretical and practical recommendations to build customer loyalty in retail businesses and other businesses. 
Co-Authors Ari Moesriami Barmawi Ayu Diana Ansori Barida Rakhma Nuranti Nugroho, Adhi SRI RAHAYU Tibaroiya, Muhammad Ardana