how to crop image using gui

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Zilvanhisna Fitri
Zilvanhisna Fitri 2016-12-18
编辑： Geoff Hayes 2016-12-21
i have a problem, i have to crop object on photos using imcrop but i want crop with fixed ratio using edit text... in this photo, the variabel are X max and Y max. if we are not using gui, the code will be : I2 = imcrop(I,[75 68 a b]); a is X max and b is Y max
because i'm using gui my code will be like this :
I = handles.Citra.RGB;
[I2 rect] = imcrop(I);
axes(handles.axes2);
imshow(I2);
guidata(hObject,handles);
how do I make the code using the edit text as a variable cropping the objects. please help me to solve this. i will waiting for anyone to answer my question

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