Binomial Filter


The Binomial Filter applies a rectangular filter whose weights are given by binomial coefficients. For large size, n, the binomial filter approaches a Gaussian Filter as the limiting case. The weights are determined by the number of pixels in the width and height of the filter kernel and may be different in each direction.

Binomial 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.

Width

Specifies the width of the binomial filter in terms of pixels along the horizontal (row) direction. For example, Width=3 gives uses the binomial expansion for n=3 to set weights of 1,2,1.

Height

Specifies the height of the binomial filter in terms of pixels along the vertical (column) direction. For example, Height=4 gives uses the binomial expansion for n=4 to set weights of 1,3,3,1.

Source Region

Specifies the rectangular region to be processed:

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, Gaussian Filter