The filter increases or decreases sharpness of the image.
You can set sharpness value by moving the Sharpen slider or typing desired percent value in the input box to the left of the scale.
Preview windows controls
|Auto preview||If this check box is selected, preview image will be recalculated every time you make a change in the dialog settings. If this box is unchecked, all changes you made will be calculated after you click the Preview button.|
|Quick view||If you are performing filter configuration on a large image file it is advised to check this box to speed up image processing calculation. The program will choose the optimal processing algorithm.|