There isn't a page (yet) as far as I know, it's collectively in the heads of the people working on it and possibly in archives of their mailing list.
Hence the suggestion to ask on their mailing list for details. I just see bits of conversation about it fly by in IRC... https://github.com/oam/oam has some info about the end product that uses the imagery but I don't see processing information or the scripts that were used. Thanks, Alex On 07/16/2011 03:02 AM, MORREALE Jean Roc wrote: > Hi Alex, could you point me to the exact page containing this > information ? I've not been able to locate it > > Le 15/07/2011 22:21, Alex Mandel a écrit : >> You might want to talk with the OpenAerialMap team about what they've >> been doing. Somehow they shrunk 25TB to 5TB of NAIP imagery using some >> fancy gdal techniques (as best I understand). >> http://www.openaerialmap.org/Main_Page >> >> Enjoy, >> Alex >> >> On 07/15/2011 11:58 AM, John Callahan wrote: >>> I'm looking for advice on sharing raster data for download. We >>> distribute >>> several raster datasets such as DEMs and orthophotography. Sometimes >>> these >>> are divided into rectangular tiles, sometimes by >>> geography/boundaries. Most >>> of our audience has some level of GIS or CAD experience. We also have >>> WMS >>> services but there are many times where people need the actual data >>> files. >>> >>> I had been creating JP2 files using JP2ECW compression. Great file size >>> reduction with very good quality. However, I'm thinking it may be >>> difficult >>> for people to view these (and more difficult for me to create) due to >>> the >>> restrictions on the codec distribution. The other JP2 options, >>> OpenJPEG and >>> libjasper, seems like they also require users to obtain this >>> codec/driver >>> and install into the software first. Same for the commercial Kakadu >>> and >>> MrSID. netCDF is great but not widely supported; IMG are good but >>> not any >>> advantage over TIFs (except for> 4 GB file sizes) >>> >>> Since I want to serve the widest possible audience (and not cater >>> only to >>> our Windows/ArcGIS audience), I'm down to serving TIFs with JPEG >>> compression >>> at around quality=75, which is what I started with years ago! Good >>> quality, >>> decent compression, wide support. Is this the best bet? Is there >>> something else out there I'm overlooking? >>> >>> - John >>> >>> *********************************** >>> John Callahan, Research Scientist >>> Delaware Geological Survey >>> University of Delaware >>> URL: http://www.dgs.udel.edu >>> ******************************* _______________________________________________ Qgis-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-user
