Extract data from a photo
October3
All pictures taken with digital cameras add information to images they take. A lot of information. To see it, install imagemagick using this command on the command line..
sudo apt-get install imagemagick
Then, just use the identify command thus..
identify -verbose /home/me/pics/some_picture.jpg
and it should pump out a heap of data.
Personally, if ever uploading photos to the internet (never) or emailing them to friends (rarely), I make sure to strip all the data from them. For this, use mogrify, also from the imagemagick suite…
mogrify -strip /home/me/pics/some_picture.jpg
Now the exif data has been removed. Nice!