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Interpolation Technique using Non Linear Partial Differential Equation with Edge Directed Bicubic
Swati Warbhe, J. Gomes
Pages - 205 - 213     |    Revised - 30-09-2016     |    Published - 31-10-2016
Volume - 10   Issue - 4    |    Publication Date - October 2016  Table of Contents
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KEYWORDS
Image Zooming, Edge Directed Bicubic, Artifacts, PDE.
ABSTRACT
With the large use of images for the communication, image zooming plays an important role. Image zooming is the process of enlarging the image with some factor of magnification, where the factor can be integer or non-integer. Applying zooming algorithm to an image generally results in aliasing; edge blurring and other artifacts. The main focus of the work presented in this paper is on the reduction of these artifacts. This paper focuses on reduction of these artifacts and presents an image zooming algorithm using non-linear fourth order PDE method combined with edge directed bi-cubic algorithm. The proposed method uses high resolution image obtained from edge directed bi-cubic interpolation algorithm to construct the zoomed image. This technique preserves edges and minimizes blurring and staircase effects in the zoomed image. In order to evaluate image quality obtained after zooming, the objective assessment is performed.
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Miss Swati Warbhe
Dept of Electronics and Telecommunication, St Francis Institute of Technology, Mumbai-400103, India. - India
swatiwarbhe@gmail.com
Dr. J. Gomes
Department of Information Technology, St Francis Institute of Technology ,Boriwali (West)Mumbai - India