MATLAB: How can i read images for filtering using if else condition in GUI

Question

function popupmenu3_Callback(hObject, eventdata, handles)

 popupimage=get(popupmenu3.handles,'value');
img=imread('flower.jpg');
img1=imread('balloon.jpg');

%average

 if
 popupimage==img
    e=fspecial('average',[33])
    A=imfilter(img,e);
    axes(handles.axes2);
    imshow(A);
 else if popupimage==img1
   e=fspecial('average',[33])        
   B=imfilter(img1,e);        
   axes(handles.axes2);     
   imshow(B);
 end

Answer 1

Try this:

selectedItem = get(popupmenu3.handles,'value');
img=imread('flower.jpg');
img1=imread('balloon.jpg');
%average
e=fspecial('average',[33])
axes(handles.axes2);
if selectedItem == 1
  A=imfilter(img,e);
  imshow(A);
elseif selectedItem == 2
  B=imfilter(img1,e);
  imshow(B);
end