Ho to delete the image from the axes?

I want to remove the image from the axes(say axes1) upon clicking a button keeping the axes intact.

I have tried using

   children=get(handles.axes1, 'children');
   delete(children);
    and other things but it completely removes the axes.
Can anyone help??
Thanx in advance

Answer 1

[Image Analyst]

You need to find the image in the axes with findobj() and then delete it. Like this:

axesHandlesToChildObjects = findobj(h, 'Type', 'image');
if ~isempty(axesHandlesToChildObjects)
  delete(axesHandlesToChildObjects);
end

You can't just call cla() or it will delete everything such as text, arrows, overlays, or other annotation you added. Try this full demo:

function test3
% Display an image.
imshow('moon.tif');
axis on;
% Add some text.
text(100,250, 'Moon', 'FontSize', 30, 'Color', 'r');
promptMessage = sprintf('Do you want to clear the image only?');
titleBarCaption = 'Continue?';
button = questdlg(promptMessage, titleBarCaption, 'OK', 'Cancel', 'OK');
if strcmpi(button, 'OK')
  % Get rid of image from current axes, but leave text.
  ClearImagesFromAxes(gca)
end

%=====================================================================
% Erases all images from the axes.
function ClearImagesFromAxes(h)
  axesHandlesToChildObjects = findobj(h, 'Type', 'image');
  if ~isempty(axesHandlesToChildObjects)
    delete(axesHandlesToChildObjects);
  end
  return; % from ClearImagesFromAxes

[Animesh]

Now if i have two axes in gui and upon pressing clear button,I want both the images to be removed.

if true
  % code
end 
function Clear_Callback(hObject, eventdata, handles)
        axis on
        ClearImagesFromAxes(handles.axes1)
        set(handles.axes1,'xtick',[],'ytick',[]);
        ClearImagesFromAxes(handles.axes2)
        set(handles.axes2,'xtick',[],'ytick',[]);
function ClearImagesFromAxes(h)
  axesHandlesToChildObjects = findobj(h, 'Type', 'image');
  if ~isempty(axesHandlesToChildObjects)
    delete(axesHandlesToChildObjects);
  end
  return; % from ClearImagesFromAxes

The problem is upon writing this code the first axes gets completely deleted while the image from the axes2 is deleted only.

[Image Analyst]

Try "axis on" for the second axis too. Your axis on only applied to the current axes, which presumably was your axes1, so it never got turned on for axes2.

[Animesh]

Thanks sir. It worked by adding axes(handles.axes2);axis on

Answer 2

[Azzi Abdelmalek]

Try

cla(handles.axes1)

[Jean Bilheux]

I didn't think about that one ('cla') and it worked great for me !

[Image Analyst]

But it clears more than just the image (which is what the original poster wanted to restrict it to). If you want to clear everything, then that's fine - it will work.