Despeckling Filter
The Despeckling Filter removes isolated impulse noise, or "speckles", from an image by applying a 3x3 median filter to the pixels. This filter imparts a small amount of smoothing to the image as a by-product of speckle removal. Although despeckling can be applied to an image of any pixel type, it is most often applied to RGB images to remove color channel noise as in the Merge LRGB Channels command.
The Despeckling Filter command opens from
the Image Window > Process >
Filters menu and 
button
on the Main Toolbar. The "immediate"
form, shown first, opens when an image or image set is displayed in
the top-most window. The general form can be used to select source
images from folders, windows, or by matching templates.
Despeckling Filter Properties
|
Profile [|>] |
Selects the parameter profile for this command and allows you to save or work with existing presets. |
|
[Select] |
Opens the Select Source Images dialog to choose images from an image window, folder, files, pattern, or a file list. |
|
Source Region |
Specifies the rectangular region to be processed. The options are as follows: Entire image The entire image is processed. Image Cursor The region to be processed is selected using the Image Cursor. Rectangle The region specified by Min and Max limits for Column and Row coordinates is processed. Column and Row, Min and Max When Rectangle is selected, these values specify the column and row limits to be processed. |
Working with RGB Images, Spatial Filter Commands, Median Filter