Adaptive multi-scale AMSS operator for quality detection of silks

Autor: Guangxin Zhang, Hui Cai, Jinhui Cai, Zekui Zhou
Rok vydání: 2009
Předmět:
Zdroj: International Journal of Computer Mathematics. 86:719-729
ISSN: 1029-0265
0020-7160
DOI: 10.1080/00207160701697347
Popis: In order to de-noise the silk images corrupted by various noises, a new improved filter based on affine morphological scale space (AMSS) equation was proposed. In this new operator both the adaptive idea and scale space were fused into partial differential equations. Scale parameters were changed adaptively according to the presence or absence of noise in image which was detected by directional gradient operators with four templates. A new evaluating criterion was constructed to test the performance of the improved AMSS operators. Two parameters based on mean square error and minimum absolute error could be acquired to evaluate the effect of keeping edge information and the ability of smoothing noise. Experimental results illustrate that this improved operator can efficiently keep edge information, and the de-noising performance is more effective than other methods for the image with multi-noise.
Databáze: OpenAIRE
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