rerkennung}}
jpegtopnm is obsolete under debian. Use djpeg instead
<code>apt-get install libjpeg-progs... , which is one of those image formats that no-one uses but somehow is the lowest common denominator for image processing command line apps. I use the program ‘jpegtopnm’ from package ‘netpbm’.
<c... any accuracy in the y direction really, since my use is to cut the face down the middle).
Then, since
