Title
Fast edge-preserving gravity-like image interpolation.
Abstract
In this paper we propose a novel image interpolation algorithm which preserves edges and keeps a natural texture of interpolated images. The algorithm is based on an idea that only pixels that belong to the same side of an edge should be used in interpolation of pixels that belong to an edge. Beside similarity-based separation of known interpolation pixels a gravity-like interpolation coefficient set is also introduced in order to support different number of interpolation pixels and their location in two dimensional plane. The algorithm also applies arbitrary scaling factors, thus offering a broader scope of applications. Use of a local set of interpolating points makes the proposed algorithm suitable for applications on resource-limited platforms. The edge performance is demonstrated for structured geometric forms, while a general interpolated image quality is evaluated using objective measures and subjective comparisons. A comparison with some relevant interpolation algorithms shows the desirable tradeoff between image quality (sharpness and texture) and requested computing power (run-time).
Year
DOI
Venue
2017
10.2298/CSIS151225041L
COMPUTER SCIENCE AND INFORMATION SYSTEMS
Keywords
Field
DocType
edge directed interpolation,edge preservation,image interpolation,image processing.
Data mining,Nearest-neighbor interpolation,Multivariate interpolation,Computer science,Bicubic interpolation,Stairstep interpolation,Algorithm,Demosaicing,Trilinear interpolation,Image scaling,Bilinear interpolation
Journal
Volume
Issue
ISSN
14
1
1820-0214
Citations 
PageRank 
References 
0
0.34
0
Authors
4
Name
Order
Citations
PageRank
zeljko lukac111.37
Stanislav Ocovaj200.34
Dragan Samardzija321821.33
Miodrag Temerinac4187.42