预处理包括图纸扫描输入、图象二值化、图象平滑与去噪、线条细化和曲线跟踪。
The preprocessing steps include drawing scanning, binary image transforming, line thinning and cure tracing.
提出在二值图象中一种新的细化方法。此方法在删除图象象素时所遵循的规则较少，简单、快速，细化结果比其他细化算法的结果好。
This paper introduces a new thinning method for digital images. This method is simple and rapid without following too many rules. The thinning result is quite well after using this method.
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