Template:Gaussian Filter

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: – Select the raster file from the drop-down menu.
• Standard deviation distance in pixels: – 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: – Enter the name of the new raster file created.

Toolbox Location

Rasters/Gaussian Filter

Related Links

• Gaussian Filter Whitebox Documentation