How to show a sequence of images
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Hello everyone,
My aim is to load a directory with 300 dicom images, to show them and to choose one of all them to modify it later. What I have to do is to show one-by-one all these images, maybe moving of one to the next one with the direction controllers or something similar and when I find the right image, to take a imcrop of it.
I think the Code would be something like this:
for z=1:size(directory)
archivo = directory(z).name;
Im = (dicomread(archivo));
Im=imadjust(Im);
imshow(Im);
XXXXXXXXXXXXXXX
imcrop(Im)
end
I think it could be done with a "pause", but I think it would be better if I could do it more interactive with other controllers.
Could you help me?
Thank you!
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Réponses (3)
Adam Wyatt
le 31 Mar 2015
Modifié(e) : Adam Wyatt
le 31 Mar 2015
You need to either add a callback function to the image/figure to respond to user key presses or mouse clicks, or you could add something like getpts.
I would add two buttons to the figure, one states "Next" and the other "Store", and implement callbacks on those buttons (you could even add a previous).
Here is a quick example - I would implement the callbacks a bit differently and not have the while loop at the end, but it illustrates the point:
function Selected = TestFun
clf;
I = randn(100, 100, 10);
count = 1;
Selected = [];
h = imagesc(I(:, :, count));
hb1 = uicontrol('Style', 'PushButton', 'String', 'Next', ...
'Callback', @NextBtnCB);
hb2 = uicontrol('Style', 'PushButton', 'String', 'Store', ...
'Callback', @StoreBtnCB);
hb1.Position(2) = hb2.Position(2)+1.1*hb2.Position(4);
while isempty(Selected)
pause(.1);
end
function NextBtnCB(src, evnt)
if count<size(I, 3)
count = count + 1;
h.CData = I(:, :, count);
end
end
function StoreBtnCB(src, evnt)
Selected = count;
end
end
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Jose Andrés
le 31 Mar 2015
Modifié(e) : Jose Andrés
le 31 Mar 2015
3 commentaires
Adam Wyatt
le 1 Avr 2015
Sorry mate, I made a question and you answered to me yesterday. I really like your idea but I am lost with all this image function thing. I have copied the Code you post on my question in a new .m file, replacing the variable "I" for my image, but I have a lot of errors and I don´t know what to do because I don´t know how it works...
You need to be more specific. Use the documentation. for any items you do not understand. Read the sections on GUI programming and Callbacks.
Ashish Uthama
le 31 Mar 2015
You could try using the image batch processor app to browse your images. You could then right-click on the image you want to select and export it to the workspace (to do further processing like cropping).
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