Image enlargement using biharmonic Said-Ball surface
Azizan Saaban, Ahmed Kherd, Ali Fareed Jameel, Habibulla Akhadkulov, F.M. Alipiah · Journal of Physics Conference Series · 2017
This paper discusses the use of biharmonic cubic Said-Ball surfaces in image enlargement area. Resizing an image through up sampling or down sampling is generally common for making smaller image fit a bigger screen in full screen mode or reducing a higher resolution image to a smaller resolution. However due to some limitation, this paper will focus on image enlargement based on scaling factor of two. We use biharmonic cubic Said-Ball subject to a given four boundary curves condition respectively. We implement and evaluate the performance of the proposed method based on peak signal to noise ratio (PSNR) indicator using well-known gray-scale test images.