... A comparative study of some methods for color medical images segmentation Liana Stanescu∗ , Dumitru Dan Burdescu and Marius Brezovan Faculty of Automation, Computers and Electronics, ... manual segmentation is a very time-consuming process for the already increasing amount of medical images As a result, reliable automatic methods for image segmentation are necessary 7 It cannot ... is that the hexagonal grid is not a lattice because hexagons are not regular Although our hexagonal grid is not a hexagonal lattice, we use some of the advantages of the hexagonal grid such as...