Re: [GRASS-user] adaptive gaussian filter

2020-07-30 Thread Jachym Cepicky
Interesting, thanks for the hint J st 29. 7. 2020 v 14:24 odesílatel Maris Nartiss napsal: > > Something like anisotropic diffusion described by Perona P. and Malik > J. 1990? https://en.wikipedia.org/wiki/Anisotropic_diffusion > I do have a working C module performing aforementioned noise

Re: [GRASS-user] adaptive gaussian filter

2020-07-29 Thread Maris Nartiss
Something like anisotropic diffusion described by Perona P. and Malik J. 1990? https://en.wikipedia.org/wiki/Anisotropic_diffusion I do have a working C module performing aforementioned noise reduction (with optional Tukey's conductance function according to Black et al. 1998) but I haven't found

[GRASS-user] adaptive gaussian filter

2020-07-29 Thread Jachym Cepicky
Hi all, I would like to ask, whether there is a code or extension, which would apply gaussian filtering on raster data, but with varying sigma value according to one of input raster maps? I would like to blur raster but differently on different regions (e.g. based on texture characteristics)