Compass Gradient Filter
The Compass Gradient Filter, often simply called just a Gradient Filter, calculates the local directional first derivative of image values in a specified azimuth direction. This filter is used for special effect and other computational purposes. For calculating the total, non-directional gradient, see the Laplacian Filter.
This command opens from the Process > Filters menu.
Properties of the Compass Gradient Filter
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Profile Selects the parameter profile for this command. |
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[Select] |
Selects the source images from an image window, folder, files, pattern, or a file list. |
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Direction |
Specifies the azimuthal angle in which the local image gradient (slope) is measured.. |
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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. |