GeoImage Workflow Editing Resources: GIWER

Abstract

While various open source and commercial image processing software exist, they often lack high level image processing skills, like the flexibility to assemble custom algorithm workflows, where the experience of the evaluator can be built into the system.We have developed the Giwer (acronym for GeoImage Workflow Editing Resources, pronounce gaiver) open source software package for handling, processing and analysing drone images. Giwer can be used to process large quantities of drone images – both traditional RGB and multispectral recordings. Organized into a database, the images can be searched and collected based on their attribute data. Processing is aided by a rich library of functions such as digital filter bank, classification, clustering, mathematical statistics, raster calculator, image algebra, and more. From the functions available in Giwer, arbitrary processing processes, i.e. workflows can be created, so the user can compile the most suitable processing procedures based on his own knowledge and experience, which he can apply not only for one image, but also for many images at once.