sharpenUnsharpMask() - Media Method

The sharpenUnsharpMask() method enhances the edges and details of an image by exaggerating the differences between the original image and a Gaussian-blurred version.

Note:  This function is “selection aware”—if a selection is made, the system applies the function based on the current selection. For more information about making selections, see selection() - Media Method.

Syntax

sharpenUnsharpMask(

[Radius @ <value 0.10..250>]

[Amount @ <value 1..500>]

[Threshold @ <value 1..255>]

);

Parameters

Radius - specifies the extent of the blurring effect. The default is 1.

Amount - specifies the extent of the enhancing effect. The default is 50.

Threshold - specifies the degree to which a blurred version of a pixel must be different from the original version before the enhancement takes effect. The default is 0.

Example

var image = new Media();

image.load(name @ "peppers.tga");

image.sharpenUnsharpMask(Radius @ 18, Amount @ 450, Threshold @ 125);

image.save(type @ "jpeg");