An improved method to get fuzzy threshold

It is offered a new method to get Fuzzy threshold in this article. First, the fundamental principals of Image Segmentation is showed, as well as some characteristics of threshold. And then, the custom Fuzzy Binary method are stated. In order to solve the problem that the parameters of custom Fuzzy threshold are difficult to set, combined with other custom and easy-to-accomplish binary methods, bypassing the problem smartly, we can get the both merits of these two. What's more, the method is very easy and clear. It is proved effective by practice, and can get good performance in similar situations.