I want to approach web server programming.

What I did: On /my/ hosted Apache-Webserver, on Plesk I activated Perl.

What I want to do: I want to write a script which downloads a photo from
a given url and detects objects on it - in other words, I want
hough transformation, edge detection etc. - all to be done on the
apache-webserver.

Thing is I have experience in python but not in Perl.

Which sample codes dealt with a similar issue on an "a patchy" webserver
with Perl activated?

Regards from Germany

Thilo