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connect lines after edge detection

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researcher
researcher 2012-8-10
评论： sheharyar javed 2019-5-15
Dear all, i've applied edge detection (sobel) to an image and get red of unwanted objects , but it also deleted some lines from the required objects.
how can i connect this lines again?
thanks in advance
  2 个评论
Sean de Wolski
Sean de Wolski 2012-8-10
Sample images are worth more than a thousand words :)

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回答（2 个）

Sumit Tandon
Sumit Tandon 2012-8-10
As Sean said, it will be difficult to give an exact answer without looking at the image. However, if the aim is to reconnect lines and fill up holes, etc., then morphological operations like dilation, closing, etc may be helpful.
Try out MorphTool submitted by Brett. This will give you easy access to morphological operations in Image Processing Toolbox.
Image Analyst
Image Analyst 2012-8-10
You can try imclose(), or fancier things like edge linking: http://www.csse.uwa.edu.au/~pk/Research/MatlabFns/#edgelink

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