Brain Tumor from MRI using MATLAB
Algorithm:-
1)
close all;
These lines are self-explanatory.
2)Import the image→
3) Convert image to binary image, based on threshold→
BW = im2bw(I,level) converts the grayscale image I to binary image BW, by replacing all pixels in the input image with luminance greater than level with the value 1 (white) and replacing all other pixels with the value 0 (black).
4) bwlabel function study link→
https://in.mathworks.com/help/images/ref/bwlabel.html
5) regionprops function study link→
https://in.mathworks.com/help/images/ref/regionprops.html
6)The fundamental idea is detecting max intensity area identification from a binary image →
**Note**
Find command is used to find the max intensity area.
7) ismember study matrial→
https://in.mathworks.com/help/matlab/ref/ismember.html
(It will return a matrix containing logical 1 (true) where the max intensity part is found in original
iamge. Elsewhere, the array contains logical 0 (false).
8) Dilation adds pixels to the boundaries of objects in an image. For that imdilate is
used.
9)Rest is simple plotting. Hope you will get the idea & hope
For more details about the project, check this link→
https://in.mathworks.com/matlabcentral/fileexchange/63792-brain-tumor-detection-from-mri-
images-using-anisotropic-filter-and-segmentation-image-processing
https://in.mathworks.com/help/images/segment-3d-brain-tumor-using-deep-learning.html
https://www.matlabcoding.com/2019/09/3d-image-segmentation-of-brain-tumors.html
1)
close all;
clear
all;
clc;
These lines are self-explanatory.
2)Import the image→
img=imread('pn.jpg');
BW = im2bw(I,level) converts the grayscale image I to binary image BW, by replacing all pixels in the input image with luminance greater than level with the value 1 (white) and replacing all other pixels with the value 0 (black).
img=imread('pn.jpg');
https://in.mathworks.com/help/images/ref/bwlabel.html
5) regionprops function study link→
https://in.mathworks.com/help/images/ref/regionprops.html
6)The fundamental idea is detecting max intensity area identification from a binary image →
**Note**
Find command is used to find the max intensity area.
7) ismember study matrial→
https://in.mathworks.com/help/matlab/ref/ismember.html
(It will return a matrix containing logical 1 (true) where the max intensity part is found in original
iamge. Elsewhere, the array contains logical 0 (false).
8) Dilation adds pixels to the boundaries of objects in an image. For that imdilate is
used.
9)Rest is simple plotting. Hope you will get the idea & hope
%Code:-
close all;
clear all;
clc;
img=imread('pn.jpg');
bw=im2bw(img,0.7);
label=bwlabel(bw);
stats=regionprops(label,'Solidity','Area');
density=[stats.Solidity];
area=[stats.Area];
high_dense_area=density>0.5;
max_area=max(area(high_dense_area));
tumor_label=find(area==max_area);
tumor=ismember(label,tumor_label);
se=strel('square',5);
tumor=imdilate(tumor,se);
figure(2);
subplot(1,3,1);
imshow(img,[]);
title('Brain');
subplot(1,3,2);
imshow(tumor,[]);
title('Tumor
Alone');
[B,L]=bwboundaries(tumor,'noholes');
subplot(1,3,3);
imshow(img,[]);
hold on
for
i=1:length(B)
plot(B{i}(:,2),B{i}(:,1), 'y'
,'linewidth',1.45);
end
title('Detected
Tumor');
hold off;
https://in.mathworks.com/matlabcentral/fileexchange/63792-brain-tumor-detection-from-mri-
images-using-anisotropic-filter-and-segmentation-image-processing
https://in.mathworks.com/help/images/segment-3d-brain-tumor-using-deep-learning.html
https://www.matlabcoding.com/2019/09/3d-image-segmentation-of-brain-tumors.html
can you explain the for loop line and also the boundaries with no holes?
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