The following Matlab project contains the source code and Matlab examples used for edge drawer. This is a simple edge detector that allows to fast edite any picture estored on your pc. The code can be used as example of how to use edge detection. It is based on post Daker Edges by Angel Johnsy. http://angeljohnsy.blogspot.com.es/2011/09/darker-edges.html
The source code and files included in this project are listed in the project files section, please make sure whether the listed source code meet your needs there.