Volume estimation application. The program takes set of object slices provided by a scanner. The software is used for medical imaging purposes especially for brain tumors (obtained from MRI and CT scanners) volume calculations. The program is useable for breast chest liver and another organs tumor calculations as well as in different areas like geology. This is possible because the application supports open inputoutput formats interfaces which allow easy and fast integration with custom file formats and data exchange with existing applications.Key features of the program are: multi-image working area which allows you manipulation and editing of similar slices windowcenter correction also known as brightnesscontrast manual selection tool auto-selection tool for solid sub-parts with similar density: some types of tumors hollow spaces organs etc. border tool for manual separation of different sub-parts but with similar density volume and area estimation dialog 3D-model view of the selected volume inputoutput formats openness which allows integration with existing software and support of popular and custom data formats.