Error using listbox multiselection for image SNR manipulation

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Jason
Jason 2016-1-12
评论： Jason 2016-1-12
I am trying to use a listbox multiselection to add images together and median combine for SNR improvement comparison reasons. I first allow the multiselection from the list box using:
%Get selected files from listbox selection
set(handles.listbox1, 'Max',2,'Min',0) %allow multi selection
list=handles.listbox1;
temp = get(list, 'String');
selected = temp(get(list, 'Value'));
set(list, 'Value', []); %Clear current selection for next time
I then use the following to perform the sum and median combine:
l=length(selected)
path=getappdata(0,'Folder'); %Get the folder
imSum=[]; %initialise
imStack=[];
for i=1:l
file=fullfile(path,selected{i})
im=double(imread(file));
imSum=imSum+im;
imStack=cat(3,imMed,im)
end
imMed=median(ImgStack,3);
However, I get an error:
Error using +
Matrix dimensions must agree.
Error in MultiImageanalysis>pushbuttonAddImages_Callback (line 1372)
imSum=imSum+im;

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采纳的回答

Jan
Jan 2016-1-12
编辑：Jan 2016-1-12
The error means, that the image files have different dimensions. Either they have different sizes or some are true-color, while others are indexed images.
I'd start with:
imSum = 0;

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