MATLAB: Code for loading an image question.

gui

Hi everyone,

I have this code for loading an image from the current directory. I can't see anything wrong with it but when I try and load an image from the list it just doesn't seem to display. Could someone quickly check over it and see where I have gone wrong? Sorry, new to MATLAB.

Thanks for your time everyone.

Best Answer

You read the image and assign it to a variable in the base workspace, but you do not have any image() or imshow() call to display the image.

Related Solutions

MATLAB: How to get the data from a popup menu and display the selected data in list box

Here is a simple example. More basic GUI examples can be found here.

function [] = GUI_pop_to_list()
S.fh = figure('units','pixels',...
              'position',[450 450 400 150],...
              'menubar','none',...
              'resize','off',...
              'numbertitle','off',...
              'name','GUI_pop_to_list');
S.pp = uicontrol('style','pop',...
                 'units','pix',...
                 'position',[10 60 190 40],...
                 'string',{'Data 1';'Data 2';'Data3'},...                 
                 'fontweight','bold',...
                 'horizontalalign','center',...
                 'fontsize',11);
S.ls = uicontrol('style','list',...
                 'units','pix',...
                 'position',[210 70 190 60],...
                 'backgroundcolor','w',...
                 'HorizontalAlign','left');
S.pb = uicontrol('style','push',...
                 'units','pix',...
                 'position',[10 10 380 40],...
                 'HorizontalAlign','left',...
                 'string','Transfer',...
                 'fontsize',14,'fontweight','bold',...
                 'callback',{@pb_call,S});
uicontrol(S.pp)   % Give the editbox control. 
function [] = pb_call(varargin)
% Callback for edit.
S = varargin{3};
E = get(S.pp,{'string','value'});
STR = get(S.ls,'string');
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MATLAB: UIGetfile Operation – Appears to OPEN/COPY .mat files, opposite what the documentation says

I don't know why the MAT-file would show up under Recent unless (as you are aware) it is being opened. Have you tried a custom MAT-file selector to see if you get the same problem? Something like (bare bones):

function F = mat_loader()
% Select a .mat file in current directory, returns string...
F = [];
D = dir('*.mat'); 
S.NAM = {D(:).name};  % Store the name of all items returned in D.
S.fh = figure('units','pixels',...
              'position',[450 450 400 200],...
              'menubar','none',...
              'name','Verify Password.',...
              'resize','off',...
              'numbertitle','off',...
              'name','mat_loader');
S.ls = uicontrol('style','list',...
                 'units','pix',...
                 'position',[10 60 380 120],...
                 'backgroundcolor','w',...
                 'string',S.NAM,...
                 'HorizontalAlign','left');
S.pb = uicontrol('style','push',...
                 'units','pix',...
                 'position',[10 10 380 40],...
                 'backgroundcolor','w',...
                 'HorizontalAlign','left',...
                 'string','Select MAT-File',...
                 'fontsize',14,'fontweight','bold',...
                 'callback',{@pb_call,S});
uiwait(S.fh)
       function [] = pb_call(varargin)
          % Callback for pushbutton.
          S = varargin{3};
          L = get(S.ls,{'string';'value'});  % Get the editbox string
          F = (L{1}{L{2}});
          close(S.fh)
      end
%     function [] = pb_call(varargin)
%         % Callback for pushbutton.
%         S = varargin{3};
%         L = get(S.ls,{'string';'value'});  % Get the editbox string
%         assignin('base',load(L{1}{L{2}}))
%     end
end

Best Answer

Related Solutions

MATLAB: How to get the data from a popup menu and display the selected data in list box

MATLAB: UIGetfile Operation – Appears to OPEN/COPY .mat files, opposite what the documentation says

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