View source for Template:Gaussian Filter

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===Gaussian Filter===
The ''Gaussian Filter'' tool is used on raster images to emphasize the longer-range variability in an image, thus smoothing it. It is useful for reducing noise in an image, but it can significantly blur edges that were well-defined in the input image. The filter works with greyscale and red-green-blue (RGB) color images but the RGB images are changed to intensity-hue-saturation and the filter is applied to the intensity channel. 

====Input Parameters====
*''Input raster file:'' &ndash; Select the raster file from the drop-down menu.
*''Standard deviation distance in pixels:'' &ndash; Enter the distance in decimal number. The larger the deviation entered the larger the resulting filter kernal. The default is 0.75.

====Output Parameters====
*''Output raster file:'' &ndash; Enter the name of the new raster file created.

====Toolbox Location====
Rasters/Gaussian Filter

====Related Links====
*[https://www.whiteboxgeo.com/manual/wbt_book/available_tools/image_processing_tools_filters.html#GaussianFilter| Gaussian Filter] Whitebox Documentation