View source for Sharpening filter

It is a high pass filter with the opposite effect as the [[Arithmetic mean filter]] increasing the contrast.
* In the search engine of the Processing Toolbox, type '''Simple filter''' and select '''Simple filter''' under Raster Filter of SAGA.
* Under the Parameters tab, select a single band as Grid.
* Select '''Circle''' from the drop-down list as Search Mode.
* Choose '''Sharpen''' as Filter
* Use '''2''' pixels as Radius.
[[File:Qgis_saga_sharpen.png|400px]]

[[category:Spatial Filtering]]