High Pass Filter
The High Pass Filter sharpens the image by passing high frequency information in the image. This is also sometimes called a "crispening" filter. The degree of enhancement ranges from 0% (no sharpening) to 100% (maximum sharpening) as controlled by two properties: The Filter Type property changes the size of the local neighborhood used to calculate the high-pass value. The Strength property determines the proportion of sharpened image mixed with the original image. In general, the stronger the enhancement, the greater the increase in sharpness but also the greater the appearance of ringing artifacts surrounding sharp features.
This command opens from the Process > Filters menu.
Properties of the High Pass 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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Filter Type |
Specifies the type of pixel neighborhood to select for calculating a sharpened value. |
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Strength |
Controls the percentage of high-pass image blended with the original image to produce the final image. |
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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. |