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.

Properties of the Binomial 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 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. 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, Gaussian Filter