Scaling properties of image textures: A detrending fluctuation analysis approach

被引:29
作者
Alvarez-Ramirez, J [1 ]
Rodriguez, E [1 ]
Cervantes, I [1 ]
Echeverria, JC [1 ]
机构
[1] Univ Autonoma Metropolitana Iztapalapa, Div Ciencias Basicas & Ingn, Mexico City 09340, DF, Mexico
关键词
detrended fluctuations analysis (DFA); images; texture analysis; roughness;
D O I
10.1016/j.physa.2005.06.082
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The aim of this paper is to explore the application of detrended fluctuation analysis (DFA) to study roughness features of images. Unidimensional sequences at different image orientations are extracted and their average scaling exponent is estimated. In this form, the existence of anisotropies can be detected when considerable variations in the scaling exponent at different image orientation are observed. Different images from grass to solar granulation are analyzed and the underlying physics of such results is briefly commented. (c) 2005 Published by Elsevier B.V.
引用
收藏
页码:677 / 698
页数:22
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