Image Processing – Geoscience Archive
Image processing and remote sensing software from Geologynet.com
Digitizer (Engauge)
PC Digitizer — digitize scanned images, graphs, maps etc. Open-source and actively maintained.
ESRI Arc Explorer
GIS and Remote Sensing Software — free map viewer and explorer for ArcGIS data.
? Live
Web Links
MultiSpec
Satellite image viewer and processor for multispectral and hyperspectral images. Freeware developed at Purdue University for analysing Earth observational image data from airborne and spaceborne systems. Available for Windows and Mac. An online version also runs in a web browser. Source code released as open source in 2020. Latest Mac release: February 2025.
? Updated — old URL (dynamo.ecn.purdue.edu) is defunct. MultiSpec moved to engineering.purdue.edu/~biehl/MultiSpec/
Web Links
GitHub
MultiSpec Online
ImageJ
Scientific image processing software programmed in Java. Widely used for biological and geological image analysis.
? Updated — imagej.nih.gov/ij/ is defunct. ImageJ moved to imagej.net/ij/ (consistent with fixes applied in Astronomy and Spacelinks pages this session)
Web Links