Document Detail


Color image processing by using binary quaternion-moment-preserving thresholding technique.
MedLine Citation:
PMID:  18267478     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
This paper presents a new moment-preserving thresholding technique, called the binary quaternion-moment-preserving (BQMP) thresholding, for color image data. Based on representing color data by the quaternions, the statistical parameters of color data can be expressed through the definition of quaternion moments. Analytical formulas of the BQMP thresholding can thus be determined by using the algebra of the quaternions. The computation time for the BQMP thresholding is of order of the data size. By using the BQMP thresholding, quaternion-moment-based operators are designed for the application of color image processing, such as color image compression, multiclass clustering of color data, and subpixel color edge detection. The experimental results show that the proposed operator for color image compression can have output picture quality acceptable to human eyes. In addition, the proposed edge operator can detect the color edge at the subpixel level. Therefore, the proposed BQMP thresholding can be used as a tool for color image processing.
Authors:
S C Pei; C M Cheng
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  IEEE transactions on image processing : a publication of the IEEE Signal Processing Society     Volume:  8     ISSN:  1057-7149     ISO Abbreviation:  IEEE Trans Image Process     Publication Date:  1999  
Date Detail:
Created Date:  2008-02-12     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9886191     Medline TA:  IEEE Trans Image Process     Country:  United States    
Other Details:
Languages:  eng     Pagination:  614-28     Citation Subset:  -    
Affiliation:
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei.
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