A Collection of Python Codes that work in QGIS (Quantum GIS) that work on Orthomosaic Maps Generated by Aerial Photogrammetry Software such as the free to use VisualSFM or commercial software DroneDeploy or PIX4D. The Goal of these codes is to create free to use classification and NDVI on orthomosaics generated using freeware or trial versions of software.
This plugin allows you to create a shp from scratch to digitize the pre ex features, classify them according to type and extrapolate their respective dimensions. It also allows you to calculate the m2 to be excavated for each single feature.