Elliptical Filter

The Elliptical Filter applies an equal weight elliptical filter to an image. The filter may have circular symmetry or be elongated and rotated. The Gaussian Filter is similar in these regards but uses Gaussian weights rather than equal weights. The Rectangle Filter is similar but has uniform weights over a rectangle rather than an ellipse.

The Elliptical 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.

Elliptical Filter

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, name template, or a Mira File List.
Width	Specifies the width in pixels of the elliptical filter if circular or the width along the major axis if the filter is elongated.
Circular	Specifies whether the elliptical filter is circularly symmetric. If checked, then a circular filter kernel is created with Elongation equal to 0.
Elong %	Specifies the percent elongation of the filter. This property applies only if Symmetric is not checked.
Angle	Specifies the angle in degrees of the major axis of the Elliptical kernel. This property applies only if Symmetric is not checked.
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 andMax 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.

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