Color image sharpening by moment-preserving technique

ASIAIR > College of Computer Science > Department of Information Communication > Journal Article > Item 310904400/4372

Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/4372

Title:	Color image sharpening by moment-preserving technique
Authors:	C. K. Yang;T. C. Wu;J. C. Lin;W. H. Tsai
Contributors:	Department of Information Communication
Keywords:	Color image;Image sharpening;Color moment;Moment preserving
Date:	1995-09
Issue Date:	2009-11-25 02:31:05 (UTC+0)
Publisher:	Asia University
Abstract:	A new approach to sharpening color images using the moment-preserving technique is proposed. An input image is processed pixel by pixel. By preserving some color moments of the n � n neighborhood of each pixel, analytic formulas are derived to compute two sets of (R, G, B) tristimulus values, and one of them is assigned to the pixel as the sharpening result. Cases with one or more uniform color components in the neighborhood are also treated. The proposed method preserves spatial details, and requires little memory and small computational load. The proposed sharpening operation can also be applied iteratively to the input image to get better sharpening effect. Experimental results show that the proposed approach is effective for color image sharpening.
Relation:	Signal Processing 45 (3): 397-403
Appears in Collections:	[Department of Information Communication] Journal Article

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