[gdal-dev] trying to change regionator image resampling to nearest-neighbor

2009-11-12 Thread Mary Jo Brodzik
Dear gdal-dev list members, I'm using a python tool called the regionator (http://code.google.com/p/regionator/wiki/ Welcome) on a large (14352x7440) png image. The regionator uses the GDAL library to resample subsets of the original image into much smaller chunk images. These images are s

Re: [gdal-dev] trying to change regionator image resampling to nearest-neighbor

2009-11-12 Thread Frank Warmerdam
Mary Jo Brodzik wrote: Dear gdal-dev list members, I'm using a python tool called the regionator (http://code.google.com/p/regionator/wiki/ Welcome) on a large (14352x7440) png image. The regionator uses the GDAL library to resample subsets of the original image into much smaller chunk imag

Re: [gdal-dev] trying to change regionator image resampling to nearest-neighbor

2009-11-19 Thread Mary Jo Brodzik
I would suggest you try out gdal2tiles.py which does something similar to regionator but with many more options. http://www.gdal.org/gdal2tiles.html Frank recommended that I try gdal2tiles. I (think) I now have a working version of it, and I've looked at the man page to find this usage:

Re: [gdal-dev] trying to change regionator image resampling to nearest-neighbor

2009-11-20 Thread Klokan Petr Přidal
Hi, > Unfortunately, the man page has no description of the expected format for > input_file.  My input file is a .png image of an area of the Himalayas in a > lat/lon projection.  I have corner points, of course, but they're not in the > .png (as far as I know!) My question now is how do I go abo

Re: [gdal-dev] trying to change regionator image resampling to nearest-neighbor

2009-12-31 Thread Roger André
Hi Mary Jo, Sounds like you have started down a slightly different path to resolve this by using gdal2tiles.py, but I'm still a bit curious about the results you were seeing with the regionator. Would you mind sending me a couple screenshots that show the before and after images, with haloing? Y