Re: [GRASS-dev] [GRASS GIS] #2134: Create a general exit-safe interface to C libraries

#2134: Create a general exit-safe interface to C libraries --+- Reporter: wenzeslaus| Owner: grass-dev@… Type: enhancement | Status: new

Re: [GRASS-dev] new flag to interpolate from nearby raster cells for v.what.rast

On Thu, Nov 14, 2013 at 11:15 AM, Hamish hamis...@yahoo.com wrote: Hi, I just added in the dev branches two new flags for v.what.rast. [...] The second flag changes the default containing-grid-cell method to a weighted avg. of the 4 nearest raster cell centers (IDW). The search radius is

Re: [GRASS-dev] [GRASS GIS] #2134: Create a general exit-safe interface to C libraries

#2134: Create a general exit-safe interface to C libraries --+- Reporter: wenzeslaus| Owner: grass-dev@… Type: enhancement | Status: new

Re: [GRASS-dev] new flag to interpolate from nearby raster cells for v.what.rast

Hi, Hamish wrote: I just added in the dev branches two new flags for v.what.rast. [...] The second flag changes the default containing-grid-cell method to a weighted avg. of the 4 nearest raster cell centers (IDW). The search radius is not very big [...] AFAIK, IDW takes as argument the

Re: [GRASS-dev] Implementation of the High Pass Filter Additive Fusion technique (i.fusion.hpf)

Nick Ves wrote: The HPF algorithm about the histrogram matching states Stretch the new multispectral image to match the mean and standard deviation of the original (input) multispectral image In that context why it is wrong to do: Ouput - output/sddev(output)*sddev(input) Output -