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How to clear the image.........

 
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Hello,

I have a rectancle drawn on buffered image .This is a rubber rectangle which is drawn by dragging the mouse now after releasing the mouse button there remains a dashed lines within the rectangle i need to clear all those and retain only the outer boundary. So is there any method to do it ? I have no idea how to do it? :roll:

Thanks in advance,
 
With a little knowledge, a cast iron skillet is non-stick and lasts a lifetime.
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