| 204 | 204 | GRASS GIS has the [https://grass.osgeo.org/grass70/manuals/i.segment.html i.segment] which provides the possibility to segment an image into objects. This is a basic step in object-based image analysis (OBIA). Currently, the module only provides one segmentation algorithm: region-growing. Many others exist: mean-shift, split-window, watershed, etc. The code of i.segment was structured in a way that allows addition of other algorithms. The core of the GSoC project would thus be to add a series of these algorithms. In addition, the current implementation only uses distance within the multidimensional space of all input bands as the criteria whether to merge segments or not. Adding shape as an additional merge criteria would be helpful. A first implementation exists in the code, but is not functional as such. If time permits, the student should implement this feature. |
