LEFA (Lineament Extraction Fracture Analysis)
Updated 6 Sep 2018
Project LEFA (http://lefa.geologov.net) is GUI Matlab script package created
for satellite image decomposition for Earth sciences implications. Fracture
analysis is often being used for geological mapping, detecting natural hazards
and prospecting of mineral resources. Achievements in computer image
processing and digital mapping made possible human independent feature
LEFA contains free of charge set of Matlab scripts, which allows to:
-Extract lineament features on satellite image (Landsat 7 and 8, SRTM and
some others are supported);
-Compute feature spatial distribution parameters (density and Minkowski
-Create Rose diagram plot of lineaments direction;
- Export features into ESRI shape format to continue work in GIS software.
LEFA uses single window interface for the whole cycle of image processing.
Sergey Shevyrev (2023). LEFA (Lineament Extraction Fracture Analysis) (https://www.mathworks.com/matlabcentral/fileexchange/67373-lefa-lineament-extraction-fracture-analysis), MATLAB Central File Exchange. Retrieved .
MATLAB Release Compatibility
Platform CompatibilityWindows macOS Linux
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Fixed bugs with shape file output and some minor issues resolved.
1.03 Update fixed the bug with line density counting upon downsampled image.
GeoTiff downsampling function has been added.
Fixed minor bugs, handled some exeptions
Minor issues are fixed