To Place An Image Over The Other

Hi,

I have a problem with the following coding:

% Frequency Of The First Row
fx1=3.5;fy1=2;
fx2=7;fy2=2;
fx3=10.5;fy3=2;
fx4=14;fy4=2;

% Frequency Of The Second Row
fx5=17.5;fy5=2;
fx6=21;fy6=2;
fx7=24.5;fy7=2;
fx8=28;fy8=2;

% Frequency Of The Third Row
fx9=31.5;fy9=2;
fx10=35;fy10=2;
fx11=38.5;fy11=2;
fx12=42;fy12=2;

% Frequency Of The Fourth Row
fx13=45.5;fy13=2;
fx14=49;fy14=2;
fx15=52.5;fy15=2;
fx16=56;fy16=2;

% Bigger Pupil 

[x1,y1]=meshgrid(-1:2/511:1, -1:2/511:1);
circ1=sqrt(x1.^2+y1.^2)<1;
z4=(sqrt(3).*(2.*(x1.^2+y1.^2)-1)); % Defocous
figure(1)
imagesc(z4); colormap gray; axis image; axis off 

% Smaller Holograms

M=zeros(512);
a=128;
b=128;
[x,y]=meshgrid(-1:2/127:+1, -1:2/127:+1);
circ=sqrt(x.^2+y.^2)<1;

% Generation Of Holograms
h1=circ.*(cos((x*pi*fx1)+(y*pi*fy1)))>0;
h2=circ.*(cos((x*pi*fx2)+(y*pi*fy2)))>0;
h3=circ.*(cos((x*pi*fx3)+(y*pi*fy3)))>0;
h4=circ.*(cos((x*pi*fx4)+(y*pi*fy4)))>0;

h5=circ.*(cos((x*pi*fx5)+(y*pi*fy5)))>0;
h6=circ.*(cos((x*pi*fx6)+(y*pi*fy6)))>0;
h7=circ.*(cos((x*pi*fx7)+(y*pi*fy7)))>0;
h8=circ.*(cos((x*pi*fx8)+(y*pi*fy8)))>0;

h9=circ.*(cos((x*pi*fx9)+(y*pi*fy9)))>0;
h10=circ.*(cos((x*pi*fx10)+(y*pi*fy10)))>0;
h11=circ.*(cos((x*pi*fx11)+(y*pi*fy11)))>0;
h12=circ.*(cos((x*pi*fx12)+(y*pi*fy12)))>0;

h13=circ.*(cos((x*pi*fx13)+(y*pi*fy13)))>0;
h14=circ.*(cos((x*pi*fx14)+(y*pi*fy14)))>0;
h15=circ.*(cos((x*pi*fx15)+(y*pi*fy15)))>0;
h16=circ.*(cos((x*pi*fx16)+(y*pi*fy16)))>0;

% An Array Of 4x4 Holograms(Concatenation)
% First Row Of Holograms
M(1:a, 1:b) = h1; %M(1, 1)
M(1:a, b+1:b*2) = h2; %M(2, 1)
M(1:a, 2*b+1:b*3) = h3; %M(3, 1) 
M(1:a, 3*b+1:b*4) = h4; %M(4, 1)

% Second Row Of Holograms
M(a+1:a*2, 1:b) = h5;%M(1, 2) 
M(a+1:a*2, b+1:b*2) = h6; %M(2, 2) 
M(a+1:a*2, 2*b+1:b*3) = h7; %M(3, 2) 
M(a+1:a*2, 3*b+1:b*4) = h8; %M(4, 2)

% Third Row Of Holograms
M(2*a+1:a*3, 1:b) = h9; %M(1, 3)
M(2*a+1:a*3, b+1:b*2) = h10; %M(2, 3)
M(2*a+1:a*3, 2*b+1:b*3) = h11; %M(3, 3) 
M(2*a+1:a*3, 3*b+1:b*4) = h12; %M(4, 3) 

% Fourth Row Of Holograms
M(3*a+1:a*4, 1:b) = h13; %M(1, 4)
M(3*a+1:a*4, b+1:b*2) = h14; %M(2, 4)
M(3*a+1:a*4, 2*b+1:b*3) = h15; %M(3, 4)
M(3*a+1:a*4, 3*b+1:b*4) = h16; %M(4, 4)

figure(2) 
imagesc(M),colormap gray; axis image; axis off 
title('Array Of 4x4 Holograms');

*******

In the above coding in figure (1) a 512x512 matrix is generated with a particular aberration(defocus) and in figure (2) 16 holograms of each dimension 128x128 is generated. My problem is that I want to place these 16 holograms or incorporate these 16 holograms in the bigger matrix of 512x512(i.e. in figure 1). So, instead of two figures I need one figure where all these 16 holograms are described over the bigger one. Can anyone please help me out in this regard?

Thanking You!

Answer 1

[Image Analyst]

Stitch them together like

bigImage = [...
image11, image12, image13, image14;...
image21, image22, image23, image24;...
image31, image32, image33, image34;...
image41, image42, image43, image44];