摘要： 从分析读数图象直方图分布规律着手,提出对图象直方图进行分区,建立区域灰度变化模型,通过屏蔽熵噪声,计算有效熵的方法分对象进行阈值设定。实验证明,该方法能有效解决读数多阈值自动设置的问题。

关键词: 图象, 直方图分区, 有效熵, 阈值

Abstract: This paper begins with analyzing the distributing characteristic of the reading image frequency chart, partitioning the frequency chart, building area gray-degree model, ulteriorly shielding the entropy yawp and calculating the effective entropy, respectively realizes the threshold auto-setting. The experiment results show that the arithmetic can effectively solve the problem for multi-threshold auto-setting. ;;;

中图分类号: 

• TP391.41