'Undefined function or variable ' error but variable is defined in function working in GUI

14 次查看（过去 30 天）
Tomas Pechac
Tomas Pechac 2018-3-12
回答： Fangjun Jiang 2018-3-12
So I have another problem with GUI. Like I said, I've perfectly working code but when I tried to get it into GUI I get this error:
Undefined function or variable 'h'.
Error in untitled>FILT_IMG_Callback (line 105)
f=(h-1)/2; % padding value for window: f=1; f=2; f=3; f=4; f=5;
Error in gui_mainfcn (line 95)
feval(varargin{:});
Error in untitled (line 42)
gui_mainfcn(gui_State, varargin{:});
I don't understand why I'm getting this error because variable is already defined. Here's code:
function FILT_IMG_Callback(hObject, eventdata, handles)
% hObject handle to FILT_IMG (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
X = getappdata(0,'X');
A = rgb2gray (X);
X = A;
%setappdata(0,'filename',X);
%axes(handles.axes1);
%imshow(X);
if nargin < 2
h=3; % local search window size: h=3; h=5; h=7; h=9; h=11;
f=1; % padding value for window: f=1; f=2; f=3; f=4; f=5;
else
f=(h-1)/2; % padding value for window: f=1; f=2; f=3; f=4; f=5;
end
F = zeros(h*h,1);
Y = zeros(size(X));
X = double(padarray(X,[f f],'symmetric'));
[m n ~] = size(X);
%etc
Any ideas?

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采纳的回答

Fangjun Jiang
Fangjun Jiang 2018-3-12
if nargin < 2
h=3; % local search window size: h=3; h=5; h=7; h=9; h=11;
f=1; % padding value for window: f=1; f=2; f=3; f=4; f=5;
else
f=(h-1)/2; % padding value for window: f=1; f=2; f=3; f=4; f=5;
end
if nargin>=2, then h is not defined.

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