Analyses 2D-Images of any kind. It can recognize and count objects in an image but also calculate the distance and areas in it.The GSA Image Analyser is a program for the scientific evaluation of 2D images (image analysis). The possibilities of the program are varied and can be divided in three main groups. The surfaces of all recognized objects are automatically calculated. In addition the surface calculation of single objects is possible. The program offers the possibility to calculate the relations of the ascertained surfaces to each other and to the whole image or background. The GSA Image Analyser has a set of functions which have been developed especially for the direct length calculation of very complex and very ramified objects. Such objects are for example plant roots. In addition to the direct length calculation an indirect calculation with a grid intersection (developed by Tennant) is possible. For this function the grid size can be freely defined.