i got error on running roughnessGUI

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Azhan Lazit
Azhan Lazit 2020-4-20
回答： Mehmed Saad 2020-4-20
i get this error can somebody help?
Brace indexing is not supported for variables of this type.
Error in roughnessGUI>open_image_Callback (line 73)
image=imread(char(filename{1}));
Error in gui_mainfcn (line 95)
feval(varargin{:});
Error in roughnessGUI (line 41)
gui_mainfcn(gui_State, varargin{:});
Error in
matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)roughnessGUI('open_image_Callback',hObject,eventdata,guidata(hObject))
Error while evaluating Menu Callback.

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回答（1 个）

Mehmed Saad
Mehmed Saad 2020-4-20
Error in this line
image=imread(char(filename{1}));
it looks like filename is a variable of type char or some other but not a cell. if filename is
filename = 'C\User\PPC\Downloads\Im.png';
then
filename{1}
Brace indexing is not supported for variables of this type.
because filename is a char not a cell, now convert it to cell
filename = {'C\User\PPC\Downloads\Im.png'};
then
filename{1}
ans =
'C\User\PPC\Downloads\Im.png'
To save multiple filename in variable filename
filename = {'C\User\PPC\Downloads\Im.png','C\User\PPC\Downloads\Re.png'};
Now you can use
iimage=imread(char(filename{1}));

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