Rank Filter


The Rank Filter replaces pixel values with a specific ranked percentile value identified in the local neighborhood. The Median Filter is a special rank filter which selects the median, or 50th percentile, value. Other special purpose rank filters are the Minimum Filter and Maximum Filter..

Properties of the Rank Filter

Profile

Selects the parameter profile for this command.

[Select]

Selects the source images from an image window, folder, files, pattern, or a file list.

Width

Specifies the width of the rank filter neighborhood in terms of pixels along the horizontal (row) direction.

Height

Specifies the height of the rank filter neighborhood in terms of pixels along the vertical (column) direction.

Rank

Specifies the rank percentile to be selected among pixel values in the neighborhood specified by Width and Height.

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.

Related Topics

Spatial Filter Commands, Median Filter, Minimum Filter, Maximum Filter