how i can use the value of a in other function?

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sana saleeme 2016-5-1

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https://ww2.mathworks.cn/matlabcentral/answers/282005-how-i-can-use-the-value-of-a-in-other-function

评论： sana saleeme 2016-5-2

how i can use the value of a in other function? and my code is here.

function pushbutton1_Callback(hObject, eventdata, handles)
[a , b] = uigetfile({'*.*' , 'all files'});
imread(a);
imshow(a);
% --- Executes on button press in pushbutton2.
function pushbutton2_Callback(hObject, eventdata, handles)
v = imread(a);
bw = im2bw(a);

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sana saleeme 2016-5-1

i did it by using global.but now no function apply on a like im2bw and rgb2gray not working on it.please guide me what should a i do?

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Answer 1

Jan 2016-5-1

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/282005-how-i-can-use-the-value-of-a-in-other-function#answer_220300

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function pushbutton1_Callback(hObject, eventdata, handles)
[a , b] = uigetfile({'*.*' , 'all files'});
imread(a);
imshow(a);
handles.a = a;
guidata(hObject, handles);
% --- Executes on button press in pushbutton2.
function pushbutton2_Callback(hObject, eventdata, handles)
handles = guidata(hObject);
v = imread(handles.a);
bw = im2bw(handles.a);