View source for Edge extraction

This filter computes the gradient magnitude of the image at each pixel.
* In search engine of Processing Toolbox, type '''Edge extraction''' and select '''EdgeExtraction''' under Feature Extraction of Orfeo Toolbox.
* Under the Parameters tab, select a single band or a multiband file as input layer.
* Select a specific band number in case of a multiband file.
* Select '''gradient''' as Edge Feature.
[[File:qgis_edge_extraction.png|400px]]

[[category:Spatial Filtering]]