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《Science of Surveying and Mapping》 2008-S3
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Improvement of Prewitt operator on edge detection of image

YANG Dao-pu,MA Qiu-he,SHI Lei (Institute of Surveying and Mapping,Information Engineering University,Zhengzhou 450052,China)  
The method of Prewitt operator is analyzed in this paper. According to the rule of calculating,an improvement method of Prewitt is provided. Comparing the general method with the improved from theory,the improved is more simple to calculate. Otherwise,it takes more less time to process 200 images which is 256×256. The improved not only detects edges successfully ,but also reduced the time of processing.
【CateGory Index】: TP391.41
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