On 2/29/08, TekBudda <[EMAIL PROTECTED]> wrote: > I am sure I posted this at the beginning of this adventure, but no harm in > doing it again. This is a long post but it has been suggested that I may > not have been clear in past posts. > > When Lisa & I go to various places (i.e. Radium next weekend), we like to > grab some snaps of various things (scenery, etc.). And seeing as we have a > handheld GPS I would to try and tie the 2 together. As a low-tech starting > point I am doing or will do the following: > * Created a picture log > * Take a waypoint of where the picture was taken as well as other pertinent > information > * Take pictures of camera > * Embed geo-coordinates (GC) > * Post to website/service > * Share the photos > * Would like if the GC could be displayed and/or watermarked in the photos > * Would be nice if someone could click on teh photo and go to the GC in the > photo. > > > I have created thelog already and am comfortable recording the information > that way for now. When taking the waypoint I will record the ID for it on > the log along with the picture number and subject. When I get back to the > computer I then remove the photos. As you can see, everything is good up to > this point. > > From the research I have done to date there are 2 ways to embed the GC. > Either edit the EXIF metadata for the image manually or automate the process > by connecting the GPS to the computer, transferring the tracklog and > running it against the photos in the folder. > > I know there are EXIF editors out there but most of them are Windows based. > Some imaging software has the ability but the Linux version don't yet have > that feature (that I have found anyways). I recently foudn that FLickr > actually allows you to enter the GC or drag and drop the photo on a map. I > have played a little bit with it, but I not sure if you can then export > those photos and post them somewhere else or not. But if you do nothave a > net connection then the FLickr option won't work...that I know of. > > I don't mind hand coding them in, but have yet to either find a piece of > software to do it or am not sure where I actually need to enter the > information. PIcasa uses Google Earth but again a net connection is needed > but it looks like the Linux does not even support that feature yet. Digikam > is supposed to allow it as well, but the version I have does not seem to > include that. I know xnview allows you to directly edit the EXIF data, but > it isn't clear where the information goes. > > I recently found a cable to connect the unit, but haven't teste dthat YET > and so trying to test out projects to automate the process like gpsbabel & > similar are pointless right now. I would like to get the basic part down > first before I start the fancy stuff. > > I still as yet have found a good solid EXIF editor (preferably > cross-platform) that will allow me to enter the GC manually and then put the > pictures where I want. The closest I have came is Flickr, but there is the > reliance on a net connection. Now if there was a way that I could do that > offline and have it sync up when I had a connection (similar to google > gears), that would be acceptable. > > As far as diplaying the GC in the photo I am thinking that can be > accomplished with any image editor, but that is minor at this point. > Watermarking would be nice as well, but not critical. The ability to click > on the photo and visit that location is also minor at this point. > > I hope this helps clarify things a bit. Feel free to contact me off-list if > you want to flame or don't want to clog the list with information.
I just tried out a CLI based exif editor (exif, http://libexif.sourceforge.net/) and although it did support GPS exif tags, it didn't seem to work for me. You may want to give it a go though... here's what I tried: # fetch http://www.opanda.com/cn/iexif/images/gg_gps.jpg # exif gg_gps.jpg EXIF tags in 'gg_gps.jpg' ('Intel' byte order): --------------------+---------------------------------------------------------- Tag |Value --------------------+---------------------------------------------------------- <...> GPS tag version |0x02, 0x02, 0x00, 0x00 North or South Latit|N Latitude |39.00, 54.00, 56.00 East or West Longitu|E Longitude |116.00, 23.00, 27.00 --------------------+---------------------------------------------------------- # exif --tag="Longitude" --set-value="0.0, 0.0, 0.0" gg_gps.jpg Wrote file 'gg_gps.jpg.modified.jpeg'. # exif gg_gps.jpg.modified.jpeg EXIF tags in 'gg_gps.jpg.modified.jpeg' ('Intel' byte order): --------------------+---------------------------------------------------------- Tag |Value --------------------+---------------------------------------------------------- <...> GPS tag version |0x02, 0x02, 0x00, 0x00 North or South Latit|N Latitude |39.00, 54.00, 56.00 East or West Longitu|E Longitude |116.00, 23.00, 27.00 --------------------+---------------------------------------------------------- :( No luck. After a bit of googling, it seems that other people have experienced this as well. It may be that exif cannot modify the exif commands without mangling all of the exif data, so it doesn't even try... but that's just my suspicion. I may not have been using it correctly (I never did find a good tutorial... or look that hard.) I did try some of the more simple fields, like "User Comment" and "North or South Latitude." None of the ones I tried had any effect. Maybe try it on a picture you took with your camera instead of one I randomly downloaded from the internet (after searching for "exif gps" in google images.) -Mark C. _______________________________________________ clug-talk mailing list [email protected] http://clug.ca/mailman/listinfo/clug-talk_clug.ca Mailing List Guidelines (http://clug.ca/ml_guidelines.php) **Please remove these lines when replying
