二值化算法问题

[cafrddea]

有一种二值化算法（如下），在二值化有些细胞图像时，有些细胞变全黑，而有些细胞变成了空心圆，这种算法实现是不是有毛病，毛病又在哪里？谢谢大家！

使用软件：ImageJ1.30v
操作系统：windows2000Prof.
算法插件：Mixture Modeling ( http://rsb.info.nih.gov/ij/plugins/mixture-modeling.html)
Authors: Christopher Mei (christopher.mei at sophia.inria.fr), Maxime Dauphin
History: 2003/12/15 : First version
Requires: ImageJ 1.31p or later, which adds the ability to package plugins in JAR files
Source: Contained in Mixture_Modeling.jar, which can be opened using a ZIP utility
Installation: Download Mixture_Modeling.jar to the plugins folder, or subfolder, restart ImageJ, and there will be a new Plugins/Filters/Mixture Modeling... command.
Description: This algorithm separates the histogram of an image into two classes using a Gaussian model. It then calculates the image threshold as the intersection of these two Gaussians. This thresholding technique has the advantage of finding a threshold that is in certain cases closer to real world data. The Gaussian parameters can also be used to caracterise the two regions obtained.
The plugin returns a histogram with the two Gaussians, the parameters obtained (average, standard deviation, threshold) and the thresholded image.

[kingrain213]

代码呢？不明白