The unsharp mask action allows unsharp masking based on the specified amount, radius and threshold. The following values need to be defined: Amount of 1 to 500 percent, Radius of 0.1 to 1000.0 Pixel and Threshold of 1 to 255 levels.
| Property | Value | Details |
| kind | UnsharpenMaskAction | |
amount | Amount of 1 to 500 percent. | Unsharp mask amount (the difference between blurred and original image). |
| radius | The radius of 0.1 to 1000.0 Pixel. | Blur radius used to produce an unfocused version of the image. |
| threshold | The threshold of 1 to 255 levels. | The threshold value for the unsharp mask in the range [0, 1] |