Unsharp Mask node

Left Toolbar > Filter icon Filter Nodes > Unsharp Mask icon Shrink node

The Unsharp Mask node applies an unsharp mask filter to the input image. Unsharp masking (USM) is an image sharpening technique, often available in digital image processing software. The "unsharp" of the name derives from the fact that the technique uses a blurred, or "unsharp", negative image to create a mask of the original image.

input
In0 Img

output
In2 Img
Image with a grow filter of 5 x 5 pixels.

Procedure

To Sharpen an image:

  1. On the left toolbar choose Filter Nodes > Unsharp Mask. Filter icon > Unsharp Mask icon

  2. Drag the Unsharp Mask icon into the Node Graph.

    Unsharp Mask node

  3. Connect the output of an image node into the image input in the Unsharp Mask node.

  4. Adjust the attributes of the Unsharp Mask node to modify the output image.

Inputs

image
The Image to be sharpened.

Outputs

image
The sharpened image.

Attributes Panel

Unsharp Mask attributes

Radius
The radius of the blur filter.

Amount
The amount.

Threshold
The threshold.

Filter Nodes

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