Multiple output images from function

The length of column 1 in bboxout is an unknown, how do I adjust my code to output each iteration of ROI_RGB?

If I use figure, imshow in the for loop each image is displayed, however I need to acces the data for each image seperately outside of the function.

function [ROI_RGB] = cleanup(bboxout, I1)

for i=1:length(bboxout)
    
    %Crop out region of interest
    ROI_RGB = imcrop(I1, bboxout(i,:));

end

end

Answer 1

[Ameer Hamza]

Use cell array

function [ROI_RGB] = cleanup(bboxout, I1)
ROI_RGB = cell(1, size(bboxout,1));
for i=1:size(bboxout,1)
    %Crop out region of interest
    ROI_RGB{i} = imcrop(I1, bboxout(i,:));
end
end

You can access elements of cell array using brace indexing

ROI_RGB{1} % first element
ROI_RGB{2}
..
..
ROI_RGB{end}

[Joe Beard]

Thanks for the reply!

Tried adding this and getting the below error

I will debug in the morning haha

[Ameer Hamza]

I have updated the code. length() is actually an ambighious function. size() and numel() should be preferred over length().

[Joe Beard]

Thanks for the help Ameer. The updated code is now giving me the below error I dont really understand, I think I need to do some more research into cell arrays!

[Ameer Hamza]

ISoR is a cell array. To display an image, you need to use indexing

imshow(ISoR{1}) % display first image
imshow(ISoR{2})
..