针对模糊C均值(FCM)聚类图像分割需要预先知道类别数及计算量较大的问题，提出了新的快速FCM改进方法。首先，利用边缘信息进行邻域搜索得到种子像素；通过区域生长快速获得区域分割类别数和对应的聚类中心值，并将图像分成确定类别的区域和未确定类别的区域；最后利用所得的聚类中心值和 FCM算法对未确定类别区域进行聚类。实验证明,本文提出的改进方法大大减少了计算量，显著提高了图像分割速度，而且由于聚类考虑了相邻像素点的关系，图像分割结果能够清晰地保留目标轮廓，提高了图像分割的质量。

The fuzzy C-means (FCM) algorithm has many disadvantages such as number of clusters must be determined before FCM clustering is implemented and the algorithm needs an amount of calculation. In order to solve these problems, a novel method of fast FCM clustering is proposed. Seed pixels can be obtained by neighborhood searching of edge information firstly; Number of clusters and the value of cluster centers can be achieved by region growing method. Image is separated into cluster regions and undetermined cluster regions. The value of cluster centers and FCM are adopted to determine the undetermined cluster regions. Experiences show that the new method greatly improved the efficiency of image segmentation. Since the relationship of neighbored pixels are taken into account, the results of image segmentation can maintain perfect and distinct targets contour and improved the quality of image segmentation.