<a href="https://www.flickr.com/photos/jeffreywarren/5244471880/" title="Cartagen Knitter for Bayou St. Denis trip by jeferonix, on Flickr"><img src="http://farm6.static.flickr.com/5163/5244471880_5d419689da.jpg" width="500" height="397" alt="Cartagen Knitter for Bayou St. Denis trip" /></a>
Once you get aerial imagery from a balloon or airplane, you can 'stitch' it into a flat map in a number of ways. This helps to overlay your data on other maps, to correlate information, and can be the first step towards [creating NDVI](/tool/infrared-camera) or other image analyses.
Ray Cha and Jeff Warren are currently developing a tutorial to guide first-time map stitchers. You can find the work-in-progress here:
It may eventually become a PDF, video, and/or web page. Contact the mailing list at https://groups.google.com/group/publiclaboratory to get involved....