SmoothAnisotropic node¶
This documentation is for version 2.0 of SmoothAnisotropic (net.sf.cimg.CImgSmooth).
Description¶
Smooth/Denoise input stream using anisotropic PDE-based smoothing.
Uses the ‘blur_anisotropic’ 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 | 60 | Amplitude of the smoothing, in pixel units (>=0). This is the maximum length of streamlines used to smooth the data. |
Sharpness / sharpness |
Double | 0.7 | |
Anisotropy / anisotropy |
Double | 0.3 | Smoothing anisotropy (0<=a<=1) |
Gradient Smoothness / alpha |
Double | 0.6 | |
Tensor Smoothness / sigma |
Double | 1.1 | Geometry regularity, in pixels units (>=0) |
Spatial Precision / dl |
Double | 0.8 | Spatial discretization, in pixel units (0<=dl<=1) |
Angular Precision / da |
Double | 30 | Angular integration step, in degrees (0<=da<=90). If da=0, Iterated oriented Laplacians is used instead of LIC-based smoothing. |
Value Precision / prec |
Double | 2 | Precision of the diffusion process (>0). |
Interpolation / interpolation |
Choice | Nearest-neighbor | Interpolation type
Nearest-neighbor (nearest): Nearest-neighbor.
Linear (linear): Linear interpolation.
Runge-Kutta (rungekutta): Runge-Kutta interpolation.
|
Fast Approximation / is_fast_approximation |
Boolean | On | Tells if a fast approximation of the gaussian function is used or not |
Iterations / iterations |
Integer | 1 | Number of iterations. |
Set Thin Brush Defaults / thinBrush |
Button | Set the defaults to the value of the Thin Brush filter by PhotoComiX, as featured in the G’MIC Gimp plugin. | |
(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. |