SmoothGuided node¶
This documentation is for version 2.0 of SmoothGuided (net.sf.cimg.CImgGuided).
Description¶
Blur image, with the Guided Image filter.
The algorithm is described in: He et al., “Guided Image Filtering,” http://research.microsoft.com/en-us/um/people/kahe/publications/pami12guidedfilter.pdf
Uses the ‘blur_guided’ 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 |
|---|---|---|---|
Radius / radius |
Integer | 5 | Radius of the spatial kernel (positional sigma), in pixel units (>=0). |
Smoothness / epsilon |
Double | 0.2 | Regularization parameter. The actual guided filter parameter is epsilon^2). |
Iterations / iterations |
Integer | 1 | Number of iterations. |
(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. |