Corp Image using Bounding Box

I have image which is attached. I am calculating the bounding box around each object (colored area) and then crop that region.

grayImage = rgb2gray(H);
mask = grayImage > 0;
S = regionprops(mask,'BoundingBox','Area');
[MaxArea,MaxIndex] = max(vertcat(S.Area));
rect = S(MaxIndex).BoundingBox;

but when I draw Image I got this.

I want to select the whole region and then crop shown in the attached image.

H = imresize(imcrop(H,rect),[224 224]);

Answer 1

[Sivsankar]

Hi Muhammed,

Try this modified piece of code

grayImage = rgb2gray(H);
mask = grayImage > 0;
S = regionprops(mask, 'BoundingBox', 'Area');
[MaxArea, MaxIndex] = max(vertcat(S.Area));
rect = S(MaxIndex).BoundingBox;

% Select the whole region
rect(1:2) = [1 1];  % Set the top-left corner of the bounding box to (1, 1)
rect(3:4) = size(H);  % Set the width and height of the bounding box to match the image size

% Crop the selected region and resize it to [224, 224]
croppedImage = imresize(imcrop(H, rect), [224, 224]);

By setting the top-left corner of the bounding box to (1, 1) and the width and height to match the image size, you are essentially selecting the whole region. Then, you can use imcrop to crop the selected region and resize it to a desired size using imresize.

Please note that this code assumes H is the original image you want to crop.

I guess this is how you wanted to crop. Reply if this is not in the way that you wanted

[Muhammad]

@J Thank you for reply. This is not what I want to crop both regions like the example.