<font face="courier new,monospace">Justin,<br>I would look at GDAL, <a href="http://gdal.org" target="_blank">gdal.org</a>. There are a few things that may be of use for you. There are several command line utilities that may be of use and good a good api for C/C++, python and other languages. The documentation is good too. Read through the website and see if it works for you.<br>
<br>kss<br clear="all"></font><br># ============================<br>Kyle Shannon<br>
Physical Science Technician<br>RMRS Fire Sciences Lab<br>Fire, Fuels & Smoke - RWU 4405<br>5775 Highway 10 W.<br>Missoula, MT 59808<br>(406)829-6954<br><a href="mailto:kshannon@fs.fed.us" target="_blank">kshannon@fs.fed.us</a><br>
# ============================<br>
<br><br><div class="gmail_quote">On Mon, Nov 8, 2010 at 10:32 AM, Justin Close <span dir="ltr"><<a href="mailto:justinclose@comcast.net" target="_blank">justinclose@comcast.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
Hello all. I am new to the list and I am looking for some guidance and<br>
pointers.<br>
<br>
I am a computer science student working on a project involving<br>
manipulation of a large number of images. The images are aerial shots<br>
of the cities at night (taken from space, actually). We are taking the<br>
RAW camera images, saving to TIFF, using the date/time stamp of the<br>
image to generally locate what/where the image is of, then manually<br>
morphing the image to scale/rotate/position it accurately to reality.<br>
Reality in this case is Google Earth; the images will eventually be<br>
served up as Google Earth layers.<br>
<br>
The CS part of this is how to automate this process. We wanted to embed<br>
the lat/long information we got back into the image, and GeoTIFF seems<br>
to be the perfect format for this. Low and behold, it can also contain<br>
morphing information too, it seems. And there are all these nifty tools<br>
out there that can do this manipulation, apparently. But for me, who is<br>
just starting out with it all, it seems a bit overwhelming; I don't know<br>
where to start in order to find out what tools I should be using.<br>
Libgeotiff seems like it has a bunch of things that we (it is a team<br>
project) should be using; we don't want to reinvent the wheel (not<br>
completely anyway - a bit of learning by doing can be good, though).<br>
<br>
So far the images have just been processed within GE itself, using its<br>
Image overlay features. But that is tedious and awkward. First step is<br>
perhaps a better manual tool that can achieve the same results (an image<br>
that is rotated and scaled to fit GE accurately). A next step is to try<br>
and get those manual operations automated so that a large number of<br>
images can be done quickly, without intervention.<br>
<br>
For the tagging (approximate lat/long) I was thinking of something to<br>
read the TIFF tag data, interface with the database that will yield the<br>
lat/long of the image, and then writing that back to the TIFF (now that<br>
I know something about GeoTIFF, probably as a GeoTIFF now instead of<br>
TIFF). It looks like listgeo/geotifcp are the tools I would want to be<br>
using for doing that.<br>
<br>
So, I am just asking for some guidance from folks who have used these<br>
tools and could comment on what might work well for what I am looking<br>
for. If you want more details, let me know.<br>
<br>
Thanks,<br>
<font color="#888888">Justin<br>
<br>
<br>
<br>
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