In this paper, a method ofimage segmentation is presented, which based on fast global K-means and region merging. Medial filter is used to remove the noise of target image. The initial segmented result is obtained by using fast global K-means clustering algorithm in the color space. A region merging strategy is used to merge the initial regions with the goal of forming the final segmentation result. The simulation results indicate that compared with other methods, the segmentation result is well consistent ...