Date: Apr 27, 2013 4:42 AM
Author: laoya
Subject: Re: How to detect the lines that can't be checked by eyes?

I have attached two pictures at here:

Could anyone help me to take a look at it?

Tang Laoya

"laoya " <> wrote in message <klg01c$3fn$>...
> Dear all,
> I need to detect two lines in the picture with left line can't be checked by eyes sometimes. The picture can be got from here (sorry I can only put a link at here since I can't attach files):
> I have two questions:
> 1) the interested part is inside the ellipse, how can I detect this area and pick out that part of image (the rectangle area)?
> 2) how to detect the location of left line?
> Thanks,
> Tang Laoya