eprintid: 11154 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/01/11/54 datestamp: 2023-11-10 03:25:41 lastmod: 2023-11-10 03:25:41 status_changed: 2023-11-10 01:14:35 type: article metadata_visibility: show creators_name: Zulkifli, N.A.B. creators_name: Karim, S.A.A. creators_name: Shafie, A.B. creators_name: Sarfraz, M. creators_name: Ghaffar, A. creators_name: Nisar, K.S. title: Image interpolation using a rational bi-cubic Ball ispublished: pub note: cited By 26 abstract: This study deals with the application of new rational bi-cubic Ball function with six parameters in image interpolation, especially for the grayscale image. These six free parameters can be modified to get better and quality image resolution, and refine the shape of the interpolating surface. This bivariate rational Ball function has been extended from univariate cases by using a tensor product approach. The proposed scheme is tested for image upscaling with factors of two and four through an efficient algorithm. The effectiveness of the proposed scheme is measured by using an image quality assessment (IQA), such as peak-signal-to-noise-ratio (PSNR), root mean square error (RMSE) or feature similarity (FSIM) index. Numerical and graphical results with comparisons against some existing scheme are presented by using MATLAB. The proposed scheme resulted in higher PSNR and FSIM, and smaller RMSE. Thus, the new rational bi-cubic Ball with six parameters is better than the existing scheme via an efficient algorithm. © 2019 by the authors. date: 2019 publisher: MDPI AG official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85075359578&doi=10.3390%2fmath7111045&partnerID=40&md5=df64e4acd4bb8ef8bde6af096820b90c id_number: 10.3390/math7111045 full_text_status: none publication: Mathematics volume: 7 number: 11 refereed: TRUE issn: 22277390 citation: Zulkifli, N.A.B. and Karim, S.A.A. and Shafie, A.B. and Sarfraz, M. and Ghaffar, A. and Nisar, K.S. (2019) Image interpolation using a rational bi-cubic Ball. Mathematics, 7 (11). ISSN 22277390