Region Growing segmentation not giving proper result.

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Hi,
I am applying the region growing algorithm to segment tumors in breast images. I is the original image. The brightest spot in the center should be the tumor. The segmentation should only display that spot. However, after applying the algorthm, the resultant image is that of I1 which is not accurate. Any suggestions would be appreciated.
I = im2double(imread('I.jpg'));
figure,imshow(I)
x=198; y=359;
J = regiongrowing(I,x,y,0.5);
figure, imshow(I+J);

Accepted Answer

Shubham Rawat
Shubham Rawat on 28 Jan 2021
Hi Warid,
I have reproduces your code, I have made just small adjustments. The new code is like that:
I = im2double(imread('I.jpg'));
x=463; y=311; %changed the starting point to this.
J = regiongrowing(I,x,y,0.04); %decreased the threshold to 0.04
figure, imshow(I+J);
My figure after this code is below here:
Hope this Helps!
  5 Comments
Ahamed Mansoor
Ahamed Mansoor on 1 Jan 2023
Edited: Ahamed Mansoor on 1 Jan 2023
Hi,
i doned below code in online matlab,it's showing execution of script region growing as a function is not supported.
I = im2double(imread('3.png'));
x=463; y=311;
J = regiongrowing(I,x,y,0.04);
figure, imshow(I+J);
Image Analyst
Image Analyst on 1 Jan 2023
@Ahamed Mansoor attach your m-files, and ALL the red text, not just a paraphrased snippet from it.

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