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2018-07-23 09:11:59 -0600 commented answer Separate HSV mask

I review some topic about the Sobel filter. It seem that it use for edge detection. So, how to apply for defining edge d

2018-07-23 09:07:16 -0600 marked best answer Separate HSV mask

The following is the original image :

image description

Then, I used the HSV inrange to filter the guidepath. And then the result like this: image description

Is there has any method so that I can separte the guidepath into 3 direction? Just similar the following: image description

Updated

The following image has already completed the first 2 (@StevenPuttemans suggestion) step image description

I also use 100*100 sliding window to scan thought the whole image. And then calculating the mean point inside the sliding window. The result like following: image description Then, I use the minmum spanning tree with euclidean distance to create the relationship between these point. Now, I have no idea how to remove noise edge in tree and confirm different direction. Anyone have a good suggestion?

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2018-07-23 08:10:20 -0600 commented answer Separate HSV mask

The first 2 step I implemented yesterday. But I have no knowledge about gradients of the image. Could you introduce some

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2018-07-23 08:08:31 -0600 edited question Separate HSV mask

Separate HSV mask The following is the original image : Then, I used the HSV inrange to filter the guidepath. And the

2018-07-21 00:33:10 -0600 asked a question Separate HSV mask

Separate HSV mask The following is the original image : Then, I used the HSV inrange to filter the guidepath. And the