Finding silver color from white background

Hi
i want to detect silver color from white background help us?

That’s super hard based on color. Can you do some type of shape detection? Or, use a CNN?

I dont know what is Cnn an the shape of that silver thing is circle .

Can you post a picture?

Maybe it isn’t hard. Its all about lighting techniques. Can you post a pic of your setup now? What did you tried so far?