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How to remove candidates which are present on blood vessels?

Asked by Krishna Chaitanya on 18 Nov 2019 at 10:28
Latest activity Edited by KALYAN ACHARJYA on 18 Nov 2019 at 18:00
Hello,
I am trying to remove pixels which are present on the blood vessels.I have two images ,one is the candidates image and the blood vessels image.I have studied that candidates won't occur on blood vessels.So, i have to eliminate the candidates which are present on blood vessels and get the output image.Can anyone help me with this? seg40.jpg
This is the bood vessel image and the candidate image is below as
output.jpg
I want to remove white dots on candidate image which are present on blood vessels in blood vessels image.
Thank you

  3 Comments

Can you please elaborate a little bit?
I'm new to matlab.
KALYAN will provide. He is the best in this area

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1 Answer

Answer by KALYAN ACHARJYA on 18 Nov 2019 at 13:46
Edited by KALYAN ACHARJYA on 18 Nov 2019 at 13:50
 Accepted Answer

"I have two images ,one is the candidates image and the blood vessels image.I have studied that candidates won't occur on blood vessels.So, i have to eliminate the candidates which are present on blood vessels and get the output image"
Use appropriate logical Operations, for example
result=bloodvessels_image & ~candidate_image

  8 Comments

Already I provided the answer
One way:
result=bloodvessels_image & ~candidate_image
2nd way:
[r c]=find(candidate_image==1);
bloodvessels_image(r,c)=0
Do you have any doubt?
That didn't help actually.But,I have tried this and it worked
del_region = bloodvessel_img & Candidate_img;
[r c] = find(del_region==1);
Candidate_img(r,c) = 0;
Thank you for your help.Can you help me in applying region growing to the first image,i.e, the blood vessel image?I want to fill the gaps within the blood vessels in first image.Thank you.
First one is much simpler solution. Anyway the problem is resoved with second answer.
You already apply the segmentation on the image, then why region growing?
Is it for vessels extraction for CAD diabetic retinopathy monitoring system?

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