plot points for image map

Question

I want to add automatic area highlighting to image maps on my webpage. I\'ve found the mapper.js library to be very useful in achieving this, however creating the x,y plots arou

Answer 1

It seems the other answers were for how to do it manually (not answering the question at all).. since this post shows up in Google results for this topic, I am updating with some info I have found that at least gives a starting point on how to do this in an automated manner:

promising PHP one that I'm looking into: http://www.imagemagick.org/discourse-server/viewtopic.php?f=1&t=14646

Other resources I found:

http://marakana.com/blog/examples/php-image-filters.html

http://vis.lbl.gov/NERSC/Software/gsharp/help/GsharpWE/userguide/imagemaps.html

http://en.wikipedia.org/wiki/Canny_edge_detector

Basically, looking for keywords like "image edge detector" and things of this nature seem to lead to more relevant results, I am still searching for one that I can use but I'm just a bit surprised that so many people seem to think this is something that should be done manually when it would be much more effective to do programatically.