一种改进的高浓度风沙图像的动态灰度阈值分割算法

梅凡民, 雒遂, 陈金广

AN IMPROVED ALGORITHM OF DYNAMIC GRAY-THRESHOLDING FOR SEGMENTING DENSE AEOLIAN SAND PARTICLES IMAGES

Mei Fanmin, Luo Sui, Chen Jinguang

表 1 改进算法效果评价

Table 1 The evaluation of the improved algorithm for aeolian sand particles image’s segmentation

Algorithm		$N_{r}$	$N_{i}$	$N_{i e}$	$R_{e}$	$P_{r}$
The traditional one		646	104	85	13%	82%
The improved one	$T = 3.5$	646	535	461	71%	86%
	$T = 2.0$	646	1003	274	42%	27%
	$T = 2.5$	646	607	368	57%	61%
	$T = 3.0$	646	567	445	69%	78%
	$T = 4.0$	646	464	402	62%	87%
	$T = 4.5$	646	422	367	57%	87%