Index exceeds matrix dimensions.

global X;
global Y
global B;
X = get(handles.popupmenu1,'value');
B = get(handles.popupmenu2,'value');
 NS = getimage(handles.axes3 )
switch(B)
%     if  strcmp( NS,'GAUSSIAN_NOISE')
    case 1
            mu = 1; n1 = mu;  sigma = (10)^2; 
            B = (1/sigma*sqrt(2*3.14)) * exp(-((n1 - mu)^2/2*sigma^2))     
% elseif strcmp(NS,'GAMMA_NOISE')
      case 2
           teta = 0.1; k = 1.1; L=10; n1 = 1
            B = n1^k-1/(0.5772*(k)*teta^k) * exp(-n1/teta) 
% else
       case 3
              sigma = 0.4
             n1 = sqrt(3.14/2*sigma)
            B = (n1/sigma^2) * exp(-n1^2/2*sigma^2)    
end
            AZ = rgb2gray(NS) 
            Q =wiener2(AZ,B)
%             imshow(Q,'parent',handles.axes4)            
W = 1./Q
 mu = 1
 E = ones()
 G = diag(Q)
 H = eye()
 [m n] = size(Q)
 alpha2 = 10;
 alpha1 = 10
 gradI_x = 2
 gradI_y = 4
 D = sqrt(gradI_x.^2+gradI_y.^2)
 F=1
  MV = (0.5*(sum(abs(W(m,n)-(mu*E))).^2)) + alpha1*(sum(abs((G(m,n)*W(m,n))-(H*F))))+ alpha2*(sum(abs(D(m,n)*F)))                          
 imshow(MV,'parent',handles.axes4)

i get the input as noisy and blured image in axes3 and in switch case i have apply multiplicative noise and blur which i got at axes3.in axes4 i got filtered input image as Q.now i want to restore image from Q as denoise and deblur so i evaluate formula for multiplicative denoise and deblur.

here i got error as

Index exceeds matrix dimensions.

at

 MV = (0.5*(sum(abs(W(m,n)-(mu*E))).^2)) + alpha1*(sum(abs((G(m,n)*W(m,n))-(H*F))))+ alpha2*(sum(abs(D(m,n)*F)))

and also pls guide me to get output image.i did some mistake @MV

[Stephen23]

@SARAH NIEKERK: please show the complete error message. This means all of the red text.

[SARAH NIEKERK]

Index exceeds matrix dimensions.

Error in main>pushbutton2_Callback (line 178)

MV = (0.5*(sum(abs(W(m,n)-(mu*E))).^2)) + alpha1*(sum(abs((G(m,n)*W(m,n))-(H*F))))+ alpha2*(sum(abs(D(m,n)*F)))

Error in gui_mainfcn (line 95)

feval(varargin{:});

Error in main (line 42)

gui_mainfcn(gui_State, varargin{:});

Error in

matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)main('pushbutton2_Callback',hObject,eventdata,guidata(hObject))

Error while evaluating UIControl Callback.

Answer 1

[Walter Roberson]

 gradI_x = 2
 gradI_y = 4
 D = sqrt(gradI_x.^2+gradI_y.^2)

gradI_x and gradI_y are scalars, so D is a scalar.

  MV = (0.5*(sum(abs(W(m,n)-(mu*E))).^2)) + alpha1*(sum(abs((G(m,n)*W(m,n))-(H*F))))+ alpha2*(sum(abs(D(m,n)*F)))

tries to access D(m,n) but D is only a scalar.

[SARAH NIEKERK]

i didnt get same error sir