imshow in GUI

Question

Edward P 2011-11-3

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/20206-imshow-in-gui

评论： Christos Stefos 2014-2-4

采纳的回答： Image Analyst

在 MATLAB Online 中打开

Hi,

I have two axes on my gui fig.

when i push a button i want to load two images for each axes. so i tried this.

% --- Executes on button press in Insert.
function pushbutton4_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton4 (see GCBO)
% Invoca duas fotos
% %       FOTO 1
[filename,pathname] = uigetfile({'*.jpg';'*.tif';'*.*'}, 'Fotografia Direita');
fich1 = fullfile(pathname,filename);
% 
% %       FOTO 2
[filename,pathname] = uigetfile({'*.jpg';'*.tif';'*.*'}, 'Fotografia Esquerda');
fich2 = fullfile(pathname,filename);
if(exist(fich1) && exist(fich2))
D=imread(fich1);
E=imread(fich2);
imshow(D,'Parent',axes1);
imshow(E,'Parent',axes2);
end
guidata(hObject, handles);

How can i use this 'Parent' parameter, to make corresponding an image to an specific axes?

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Answer 1

Image Analyst 2011-11-3

3
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/20206-imshow-in-gui#answer_26684

在 MATLAB Online 中打开

Perhaps you should try

imshow(D,'Parent', handles.axes1);
imshow(E,'Parent', handles.axes2);

Anytime you need to refer to any of the controls in your gui, you need to put "handles." before the name of the "tag."

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Julio Vilela 2012-7-26

Superb! I've been googling this for so long, and here is the answer, thanks!!!

Christos Stefos 2014-2-4

superb answer..very helpful!

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Answer 2

Jan 2011-11-3

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/20206-imshow-in-gui#answer_26680

在 MATLAB Online 中打开

imshow(D, 'Parent', axes1) looks fine already, but as far as I can see in your code, axes1 is not defined. Is it a field of the handles struct?

exist(fich1) is dangerous, because it checks all variables, Java classes, folders and files. Be sure to specify exist(fich1, 'file'). Even then it can be a directory also. To be really sure use:

if exist(fich1, 'file') && ~exist(fich1, 'dir')

I think, exist is not comfortable currently.