SharpenShock node

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This documentation is for version 2.0 of SharpenShock (net.sf.cimg.CImgSharpenShock).

Description

Sharpen selected images by shock filters.

Uses ‘sharpen’ function from the CImg library.

CImg is a free, open-source library distributed under the CeCILL-C (close to the GNU LGPL) or CeCILL (compatible with the GNU GPL) licenses. It can be used in commercial applications (see http://cimg.eu).

Inputs

Input

Description

Optional

Source

No

Mask

Yes

Controls

Parameter / script name

Type

Default

Function

Amplitude / amplitude

Double

0.6

Standard deviation of the spatial kernel, in pixel units (>=0). Details smaller than this size are filtered out.

Edge Threshold / edgeThreshold

Double

0.1

Edge threshold.

Gradient Smoothness / alpha

Double

0.8

Gradient smoothness (in pixels).

Tensor Smoothness / sigma

Double

1.1

Tensor smoothness (in pixels).

Iterations / iterations

Integer

1

Number of iterations. A reasonable value is 1.

(Un)premult / premult

Boolean

Off

Divide the image by the alpha channel before processing, and re-multiply it afterwards. Use if the input images are premultiplied.

Invert Mask / maskInvert

Boolean

Off

When checked, the effect is fully applied where the mask is 0.

Mix / mix

Double

1

Mix factor between the original and the transformed image.