img2md

Image to meta data 

I've added an "img2md" application. Application to output metadata given metadata type, source image, output file. Additional keywords can be passed to writer via the "-t" option which takes a keyword list. 

So you can do: 
 $ img2md tiff_world_file foo.tif foo2.tfw 
 Now you have a tfw file. 

Or: 
 $ img2md ossim_readme foo.tif foo_readme.txt