MATLAB: How to call the detected eye function on other push button

calling matlab function in push button

function pushbutton3_Callback(hObject, eventdata, handles)
selectedFile = handles.selectedFile;
EyeDetect = vision.CascadeObjectDetector('EyePairBig');
I = imread(selectedFile);
BB=step(EyeDetect,I);
axes(handles.axes2);
imshow(I); hold on
for i = 1:size(BB,1)
 rectangle('Position',BB(i,:),'LineWidth',2,'LineStyle','-','EdgeColor','r');
end
hold off;

Best Answer

See the FAQ http://matlab.wikia.com/wiki/FAQ#How_can_I_share_data_between_callback_functions_in_my_GUI.28s.29.3F for a thorough discussion.

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MATLAB: Getappdata and setappdata

Hello,

I will give you sample code for this topic.

I have a .fig file (figure) that consists of 2 axes (axes1 and axes2) and 2 pushbutton (pushbutton1 and pushbutton2).

Then, here the m-file code

function varargout = untitled(varargin)
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @untitled_OpeningFcn, ...
                   'gui_OutputFcn',  @untitled_OutputFcn, ...
                   'gui_LayoutFcn',  [] , ...
                   'gui_Callback',   []);
if nargin && ischar(varargin{1})
    gui_State.gui_Callback = str2func(varargin{1});
end
if nargout
    [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
else
    gui_mainfcn(gui_State, varargin{:});
end
function untitled_OpeningFcn(hObject, eventdata, handles, varargin)
    handles.output = hObject;
    guidata(hObject, handles);
function varargout = untitled_OutputFcn(hObject, eventdata, handles) 
    varargout{1} = handles.output;
function pushbutton1_Callback(hObject, eventdata, handles)
    I = imread('cameraman.tif');
    imagesc(I, 'parent', handles.axes1);
    setappdata(handles.pushbutton1,'img',I);
function pushbutton2_Callback(hObject, eventdata, handles)
    J = getappdata(handles.pushbutton1,'img');
    bw = im2bw(J);
    imagesc(bw, 'parent', handles.axes2);

Watch at pushbutton1_callback. Fisrt I read image with command imread and display it to the axes1.

Then after finished, I store the variable I to the handle : 'pushbutton1' as name : 'img' with command :

setappdata(handles.pushbutton1,'img',I);

Then watch at pushbutton2_callback

I used command

J = getappdata(handles.pushbutton1,'img');

to get the the last value which I stored at handle 'pushbutton1' which name = 'img'.

And then I successfully create a binary image with input parameter 'J'

MATLAB: Plotting data in gui

axes(handles.axes1)

Notice you had handle instead of handles

Best Answer

Related Solutions

MATLAB: Getappdata and setappdata

MATLAB: Plotting data in gui

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