This invention relates to rearranging a cluster map of voxels in an image aiming at the reduction of sub-cluster scatter. The cluster map that includes two or more cluster levels is displayed to the user along with the distribution of the voxels within each respective cluster levels. The aim is to enable the user to evaluate the quality of the cluster map and based on the evaluation to change the distribution of the voxels. Such a change in the distribution will result in an update of the cluster map. the application discloses a method of segmentation of e.g. medical images (CT,MR) in 3D by clustering of the voxels according to their Intensities with repeated re- initalization realized by multi-thresholding of the intensity histogram.
3D SEGMENTATION BY VOXEL CLASSIFICATION BASED ON INTENSITY HISTOGRAM THRESHOLDING INITIALISED BY K-MEANS CLUSTERING