Local quaternion Fourier transform and color image texture analysis

被引：45

作者：

Assefa, Dawit ^{[1
]}

Mansinha, Lalu ^{[2
]}

Tiampo, Kristy F. ^{[2
]}

Rasmussen, Henning ^{[3
]}

Abdella, Kenzu ^{[4
]}

机构：

[1] Princess Margaret Hosp, Radiat Med Program, Dept Radiat Oncol, Toronto, ON M5G 2M9, Canada

[2] Univ Western Ontario, Dept Earth Sci, London, ON, Canada

[3] Univ Western Ontario, Dept Appl Math, London, ON, Canada

[4] Trent Univ, Dept Math, Peterborough, ON K9J 7B8, Canada

来源：

SIGNAL PROCESSING | 2010年 / 90卷 / 06期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Quaternion; Fourier; Hartley; Color image analysis; S-transform; FEATURES; SIGNAL; 1-D;

D O I：

10.1016/j.sigpro.2009.11.031

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

080906 [电磁信息功能材料与结构]; 082806 [农业信息与电气工程];

摘要：

Color images can be treated as two-dimensional quaternion functions. For analysis of quaternion images, a joint space-wavenumber localized quaternion S transform (QS) is presented in this study for a simultaneous determination of the local color image spectra. The QS transform uses a two-dimensional Gaussian localizing window that scales with wavenumbers. Rotation invariance, invertibility and computational aspects of the QS transform are discussed. The power map of the QS transform is presented here as a powerful tool in color image texture and pattern analysis. Examples are presented. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1825 / 1835

页数：11

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