matlab - インデックスが行列の次元を超える - MATLAB GUI - MathWorks 日本

Question

以下に示す私のGUIでhttp://s1273.photobucket.com/user/Chethan_tv/media/CBIR_zpsb48bce14.jpg.html

開いた押しボタンは、それぞれの軸に表示された画像を表示するために使用されます。軸は画像を表示し、開くボタンは対応する画像をより大きなサイズで表示する必要があります。

%below 3 lines are in GUI *_opening function
handles.MyData.ListFileName = 'FileName';
handles.MyData.FileNames = {}; % here we store all the image names
handles.MyData.Images    = {}; % here we store all images

以下のコードはdisplay_results関数にあります

function displayResults(filename,hObject, eventdata, handles)
fid=fopen(handles.MyData.ListFileName);
    for N=6:1:10
        imagename = fgetl(fid);
        if ~ischar(imagename), break, end       % Meaning: End of File...
        [x,map]=imread(imagename);
        rgb=ind2rgb(x,map);
        ax = handles.(sprintf('axes%d', N));
        image(rgb, 'Parent', ax);
        set(ax, 'Visible','off');
        %xlabel(imagename);

        % store file name and image itself for later use
        handles.MyData.Images{N} = rgb;
        handles.MyData.FileNames{N} = imagename;

        % we have buttons like open1 open2 open3 etc...
        % add some info to the open buttons
        % so they will be aware which image they display
        btn = handles.(sprintf('open%d', N));
        set(btn, 'UserData',N);
    end
    fclose(fid);
    % Update handles structure
    guidata(hObject, handles);

私のopen押しボタン機能は

   function open1_Callback(hObject, eventdata, handles)
    % hObject    handle to open1 (see GCBO)
    % eventdata  reserved - to be defined in a future version of MATLAB
    % handles    structure with handles and user data (see GUIDATA)

    N   = get(hObject,'UserData');
    rgb = handles.MyData.Images{N};
    ax  = handles.(sprintf('axes%d', N));
    % create figure in 'modal' mode, so user have to close it to continue
    figure('WindowStyle','modal', 'Name',handles.MyData.FileNames{N} );
    % show image
    image(rgb, 'Parent', ax);
    set(ax, 'Visible','off');
    guidata(hObject, handles);

しかし、openaxes6の下にあるボタンを押すと、次のようなエラーが発生します

??? Index exceeds matrix dimensions.

Error in ==> Fig5>open6_Callback at 163
rgb = handles.MyData.Images{N};

Error in ==> gui_mainfcn at 96
        feval(varargin{:});

Error in ==> Fig5 at 42
    gui_mainfcn(gui_State, varargin{:});

Error in ==>     @(hObject,eventdata)Fig5('open6_Callback',hObject,eventdata,guidata(hObject))

   ??? Error while evaluating uicontrol Callback

私のコードのどの部分が間違っていますか?