Questions and postings pertaining to the usage of ImageMagick regardless of the interface. This includes the command-line utilities, as well as the C and C++ APIs. Usage questions are like "How do I use ImageMagick to create drop shadows?".
You are referencing an absolute directory at the root of your tree. If you really want a subdirectory of your current directory, then leave off the / in your output image, so that it is a relative path
This is how I would do it. You can modify the command for your application