Bonjour,

Pourquoi lorsque on utilise l'interface graphique de MATLAB pour un traitement d'image, l'exécution des fonctions prend beaucoup plus de temps que prévu?

Voila un exemple de code
Code : Sélectionner tout - Visualiser dans une fenêtre à part
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function varargout = imag(varargin)
% IMAG M-file for imag.fig
%      IMAG, by itself, creates a new IMAG or raises the existing
%      singleton*.
%
%      H = IMAG returns the handle to a new IMAG or the handle to
%      the existing singleton*.
%
%      IMAG('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in IMAG.M with the given input arguments.
%
%      IMAG('Property','Value',...) creates a new IMAG or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before imag_OpeningFunction gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to imag_OpeningFcn via varargin.
%
%      *See GUI Options on GUIDE's Tools menu.  Choose "GUI allows only one
%      instance to run (singleton)".
%
% See also: GUIDE, GUIDATA, GUIHANDLES
 
% Edit the above text to modify the response to help imag
 
% Last Modified by GUIDE v2.5 24-Sep-2010 16:52:39
 
% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @imag_OpeningFcn, ...
                   'gui_OutputFcn',  @imag_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
% End initialization code - DO NOT EDIT
 
 
% --- Executes just before imag is made visible.
function imag_OpeningFcn(hObject, eventdata, handles, varargin)
% This function has no output args, see OutputFcn.
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% varargin   command line arguments to imag (see VARARGIN)
 
% Choose default command line output for imag
handles.output = hObject;
 
% Update handles structure
guidata(hObject, handles);
 
% UIWAIT makes imag wait for user response (see UIRESUME)
% uiwait(handles.figure1);
 
 
% --- Outputs from this function are returned to the command line.
function varargout = imag_OutputFcn(hObject, eventdata, handles) 
% varargout  cell array for returning output args (see VARARGOUT);
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
 
% Get default command line output from handles structure
varargout{1} = handles.output;
 
 
% --- Executes on button press in floatImg.
function floatImg_Callback(hObject, eventdata, handles)
% hObject    handle to floatImg (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global reg;
[reg.floatFile,reg.floatPath] = uigetfile({'*.jpg';'*.png';'*.tif';'*.tiff'},'Open the Floating Image');
reg.floatImg=double(imread([reg.floatPath '/' reg.floatFile]));
axes(handles.axes1);
reg.floatImgHandle=imshow(reg.floatImg,[0 255]);
set(reg.floatImgHandle,'HitTest','on');
grid off;
zoom off;
 
 
% --- Executes on button press in refImg.
function refImg_Callback(hObject, eventdata, handles)
% hObject    handle to refImg (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global reg;
[reg.refFile,reg.refPath] = uigetfile({'*.jpg';'*.png';'*.tif';'*.tiff'},'Open the Reference Image');
reg.refImg=double(imread([reg.refPath '/' reg.refFile]));
axes(handles.axes2);
reg.refImgHandle=imshow(reg.refImg,[0 255]);
set(reg.refImgHandle,'HitTest','on');
grid off;
zoom off;
 
 
% --- Executes on button press in pushbutton3.
function pushbutton3_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton3 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global reg
A=reg.refImg
B=reg.floatImg
 
c=A*B
 
%%%%%%%%%%%%%%%%%%%%%%
Si quelqu'un pouvait m'aider sur ca,
Merci