Volume 3 Number 2 (Feb. 2008)
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JSW 2008 Vol.3(2): 41-51 ISSN: 1796-217X
doi: 10.4304/jsw.3.2.41-51

Hierarchical Image Segmentation by Structural Content

Nathir A. Rawashdeh1, Shaun T. Love1 and Kevin D. Donohue2
1Lexmark International, Inc., Lexington, KY, USA
2Department of Electrical and Computer Engineering, University of Kentucky, Lexington, KY, USA

Abstract—Image quality loss resulting from artifacts depends on the nature and strength of the artifacts as well as the context or background in which they occur. In order to include the impact of image context in assessing artifact contribution to quality loss, regions must first be classified into general categories that have distinct effects on the subjective impact of the particular artifact. These effects can then be quantified to scale the artifact in a perceptually meaningful way. This paper formulates general context categories, develops automatic image region classifiers, and evaluates the classifier performance using images containing multiple categories. Linear classifiers are designed to identify three main classes which include random, textured, and transient regions. Features for identifying these areas over regions at multiple resolutions are based on the optical density histogram (ODH), the cortex transform, and the co-occurrence matrix. It was found that selecting features from the ODH and cortex transform provides classification results in agreement with human assessment, and performances comparable to those of classifiers using co-occurrence matrix features. Experiments to assess performance show misclassification rates ranging from 3.3% for the lowest resolutions to 32.2% at highest. This paper also presents a hierarchical classification algorithm that combines classifiers operating at multiple resolutions and achieves an overall misclassification rate as low as 4.8%.

Index Terms—extensible markup language, computerassisted interviewing, computer-assisted self-interviewing, functional programming


Cite: Nathir A. Rawashdeh, Shaun T. Love and Kevin D. Donohue, " hierarchical classifier, classification confidence, image structure, image quality, image segmentation, cortex transform," Journal of Software vol. 3, no. 2, pp. 41-51, 2008.

General Information

ISSN: 1796-217X (Online)
Frequency:  Quarterly
Editor-in-Chief: Prof. Antanas Verikas
Executive Editor: Ms. Yoyo Y. Zhou
Abstracting/ Indexing: DBLP, EBSCO, CNKIGoogle Scholar, ProQuest, INSPEC(IET), ULRICH's Periodicals Directory, WorldCat, etc
E-mail: jsw@iap.org
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