2
$\begingroup$

I am trying to use the GaborFilter to extract features such as pixel clusters forming straight lines in a specific direction from images. How ever the Gabor filter is proving hard for me to understand even though I have been trying hard to read about it. Please use this sample image to extract only vertical lines with a tolerance of about 20 degrees. I have tried it by doing trial and error and I am getting close to favorable results, but I am unable to control the tolerance and feel like I don't realy understand how the filter is working. I would really appreciate it if you could give me brief tips on how to control the filter and the tolerance. Here is the picture I used and the out put I got from my code after processing to extract only vertical linesenter image description here ColorReplace[GaborFilter[i3, 6, {0, 1}, 6] // ImageAdjust, Gray]

enter image description here Thank you very much for your help.

Improve this question
$\endgroup$

1 Answer 1

Reset to default
1
$\begingroup$ 
Manipulate[
 ColorReplace[GaborFilter[i3, rr, {0, ss}, jj] // ImageAdjust, Gray],
 {rr, 1, 10},
 {jj, 1, 10},
 {ss, 1, 10}]
Improve this answer
$\endgroup$
2
  • $\begingroup$ Thank you. This helps with trial and error. But I am still not sure how the filter works, so that I can do accurate work. $\endgroup$
    – Shriram Bobbili
    Commented Aug 2, 2017 at 19:47
  • $\begingroup$ One performs a convolution with Gabor filters of different parameters. Look on wikipedia or any site describing the process. $\endgroup$
    – David G. Stork
    Commented Aug 2, 2017 at 19:48

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.