Can you help me to identify these shapes?

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ROMIL
ROMIL 2014-2-28
回答： ROMIL 2014-2-28
I am working on a project where i have to identify shapes on the pictures taken from a webcam.
This is the picture I have.
The thing is that i am not able to convert it properly into a binary image from where I can use it to identify the shapes. Please can anybody assist.
  2 个评论
Walter Roberson
Walter Roberson 2014-2-28
What error do you get when you attempt to convert it to a binary image?
ROMIL
ROMIL 2014-2-28
Not particularly an error Walter. There is a lot of noise in the image and also edges aren't sharp so my binary image is like this

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回答（2 个）

Walter Roberson
Walter Roberson 2014-2-28
Your threshold is too high for the one on the left. The one on the right is going to be a problem, so imclose() it so you can get the boundary, then when you have extracted the region you can start doing edge processing.
ROMIL
ROMIL 2014-2-28
Walter that's where I'm stuck. A code or an excerpt will be very useful.

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