ImageSharpen()

Sharpens an image by using the unsharp mask filter.

Requires Extension: Image extension


	ImageSharpen( image=any, gain=number );

Returns: void

Argument	Description	Default
image _{any, required}	The image on which this operation is performed. _{Alias: name}
gain _{number, optional}	Gain values can be integers or real numbers. The default value is 1.0. The value determines whether the image is blurred or sharpened: if > 0, the image is sharpened if = 0, no effect if < 0, the image is blurred	1

Argument

Description

Default

image

_{any,

required}

The image on which this operation is performed.

_{Alias:
name}

gain

_{number,

optional}

Gain values can be integers or real numbers. The default value is 1.0. The value determines whether the image is blurred or sharpened:

img=imageRead("https://avatars1.githubusercontent.com/u/10973141?s=280&v=4");
imageSharpen(img,2);
cfimage(action="writeToBrowser",source=img);