shape detection

Hi
Im working on an idea using C# that any object added on my white background the camera should capture it and decide its shape by comparing it to a group of pictures .
ps : I'm working on my senior graduation project in college , and its my first time to deal with image processing things
( feeling totally lost
) so if anyone have any advice or an idea or a code to start with this would be very helpful .
Thank you

Im working on an idea using C# that any object added on my white background the camera should capture it and decide its shape by comparing it to a group of pictures .
ps : I'm working on my senior graduation project in college , and its my first time to deal with image processing things
( feeling totally lost

Thank you