A COG file is a GEOTiff file which inner structure is tiled, meaning that the whole picture is divided in fixed size tile (256 x 256 pixels for instance) so you can efficiently retrieve parts of the raster.
#Gp4 mods portable
#Gp4 mods software
The 8bit version is optimised for viewing in non-GIS software and it can be viewed in Microsoft Windows photo viewer and any other photo viewer (GIMP, Photoshop, IrfanView). Output of visualization is in *.tif format and in two versions, 32 and 8 bit.A GIMP plug-in that does automatic deskewing of images : gimp-dustcleaner: 0.0: A dust remover plug-in for GIMP : gimp-focusblur: 3.2.6: A focus blur plug-in for GIMP : gimp-gap: 2.6.0: GIMP Animation Package : gimp-gps: 1.5.0: A collection of brushes and accompanying tool presets : gimp-koi: 0.0: A GIMP image authentication plugin : gimp-layer.geotiff.js aims to support as many TIFF features as possible, including various image compression methods, geographical information, internal tiling, pixel or band interleaving, automatic transformation.Some operations can be mighty slow even on this 4 GHz i7 with 32 GB RAM, so maybe not the best use for a Pi 3. Gimp 3.0 is planned to be a clean workflow for any bit depth. scruss wrote: Gimp 2.9 can save in deep image formats, and has most of its internals able to handle deep images.diagnostics.json A dictionary containing runtime diagnostics useful for debugging. dem_source.txt A text file with the source of the topo file (GIMP, SRTM, …).
A geotiff file containing the DEM (reprojected into the local grid).This DEM is not smoothed or gap filles, and is the closest to the original DEM source.
You can use that for contrast enhancements, etc. You could maybe try pre-process in ImageJ (or Fiji), which opens 16 bit tiffs. It's easy to lose information when you're processing stuff in 8 bit.