图像分割中模糊聚类数目的确定

尽管模糊聚类是一种无监督的分类,但目前的FCM类型的算法却要求聚类原形参数的先验知识(原型数目及类型),否则算法就会产生误导,这就限制了在图像分割中的应用。因此需要对聚类数目给出一个判断算法。通过对图像的灰度直方图中加入它的梯度信息,提出了灰度-梯度的二维直方图。该方法能有效地抑制噪声的干扰,更准确地得到聚类数目,使模糊聚类完全无监督化。

Identification Numbers of Fuzzy Clustering Algorithm in Image Segmentation

Although a fuzzy clustering algorithm is a clustering without supervising.Now the FCM arithmetic should be given the transcendent information of antetype parameter,otherwise the arithmetic will be wrong.This limits its application in image segmentation.So should have an algorithm to judge the number of the clustering.In the paper,added the gradient information into the image gradation histogram,proposed the gradation-gradient two-dimensional histogram.This method can reduce the disturbance of noise,get the numbers more accurate.This method made the fuzzy clustering algorithm become a clustering without supervising.