12,221 reputation
960138
bio website maphew.com
location Yukon Territory, Canada
age
visits member for 4 years, 1 month
seen Aug 28 at 22:13

hewer of maps, old time techie, newbie developer

woohoo, http://gis.stackexchange.com/ now open to the public!

personal - www.maphew.com
in-between - yukongis.ca
work - www.environmentyukon.ca

profile for matt wilkie on Stack Exchange, a network of free, community-driven Q&A sites


Aug
28
comment Raster diff: how to check if images have identical values?
Yes the images we want to do something about are classified, but part of the point of a diff test is to weed out intermingled images that aren't and shouldn't be classified (leave them out of the conversion).
Aug
27
comment Raster diff: how to check if images have identical values?
@whuber thanks for ensuring proper NoData handling stays in the conversation.
Aug
27
revised Raster diff: how to check if images have identical values?
add example pixel dimensions
Aug
27
comment Raster diff: how to check if images have identical values?
@radouxju the images range up to 100,000px to a side, so ~30GB uncompressed. We don't have machine with that much ram (though perhaps with virtual...)
Aug
27
comment Raster diff: how to check if images have identical values?
intriguing, I love gdal, didn't know about this script. Docs for interpreting the results are sparse to non-existent though ;-). In my initial testing it reports differences in colour interpretation and pallettes, meaning it might too specific for my current needs. I'm still exploring it though. (note: this answer too short to be a good fit here, link only answers are discouraged, please consider fleshing it out).
Aug
27
asked Raster diff: how to check if images have identical values?
Aug
25
awarded  Notable Question
Aug
22
reviewed No Action Needed Trouble installing PostGIS PlugIn for OpenJump
Aug
21
reviewed Leave Open How to generate automatically the name of output parameters in a python script tool?
Aug
21
comment How to generate automatically the name of output parameters in a python script tool?
there isn't enough detail in your Q for us to help. Perhaps include a sample of your script, reduced to it's simplest possible form (sometimes pseudo code can be clearer than the real thing). Also What GP tool do you see creating a workspace automatically? (most ask for a pre-existing workspace). ...and finally a tip: add the GP tool to a model, then export as python script. That will show you how the tool does it. (And if that works, come back and answer your own question so others can benefit from your research)
Aug
21
awarded  Caucus
Aug
21
awarded  Constituent
Aug
19
revised How to force 1-bit raster output in ArcGIS 10.1 for Desktop?
`pyramid` is not plural
Aug
18
awarded  Popular Question
Aug
17
awarded  Popular Question
Aug
5
awarded  Popular Question
Jul
22
awarded  Yearling
Jul
16
awarded  Popular Question
Jul
4
comment Setting symbol descriptions of ArcMap layout legends from table?
I solved the problem of having to make descriptions and lookup codes match, see my answer.
Jul
4
answered Setting symbol descriptions of ArcMap layout legends from table?