legend and size of an image

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Shel 2019-1-14

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https://ww2.mathworks.cn/matlabcentral/answers/439744-legend-and-size-of-an-image

编辑： Adam 2019-1-16

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Hello everybody,

Would you guide me?

I am working with matlab to process my images and I have three questions.

I am building a stack from my images but is it possible to add a legend so that I can understand the values that are shown by the image?
Also, how can I rotate the image 90 degrees clockwise) as the imagesc(rot90(coronalimg,3)) and figure, img=imrotate(Img,(90)) gives errors.
is it possible to have the correct proportion of width and depth smaller or bigger than the "truesize"?

here is my code:

source_dir=uigetdir([]);
fontSize=10
d=dir([source_dir,'\8-*.dcm']);
totalfile=length(d);
for i=1:totalfile
    fname=['8-',num2str(i), '.dcm'];
    indicom=dicomread(fullfile(source_dir, fname));
    
    stack(:,:,i)=indicom;
end
figure,
coronalimg=squeeze(stack(:,256,:));
%imagesc(rot90(coronalimg,3))
Img=imagesc((coronalimg))
truesize
%figure, img=imrotate(Img,(90))