How to read image loaded in another function in GUI
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I am a Matlab beginner, and am confused by the way that functions work in a GUI.
I'd like to use one pushbutton to prompt the user to load a file, and then another pushbutton to start analyzing that image. I can't figure out how to read the image that the user uploaded in the previous pushbutton callback function.
In the attached file, I tried to use the first suggestion in these FAQs by adding an image variable to the handles structure. I get the error "Reference to non-existent field 'image'."
What is the best way to call the image again?
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KSSV
2018-1-17
When you push a button, and upload file..you will get the name of the file with its path...you can use this to read/ analyse.
回答(1 个)
bon sai
2018-1-25
编辑:bon sai
2018-1-25
If your pushbutton1_Callback to get the filepath, then read the image to array. Finally store it in handles and update handles. So the code seems like this:
[file,path]= uigetfile(......);
fullname = fullfile(path,file);
image = imagesc(fullname);
handles.image = image;
guidata(hObject,handle)
When you call your image array in pushbutton2 just use
imageinbtn2 = handles.image
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