Human Face Recognition

Matlab Program 4--Noise inserted by function imnoise in same pictures


 Matlab Program 4--Noise inserted by function imnoise in same pictures

I = imread('cara1.jpg');

J= imread('cara1.jpg');

Ja = imnoise(I,'salt & pepper',0.02);

%BW1 = im2bw(I,.5);

%BW2= im2bw(J,.5);

BW3 = edge(I,'canny');

BW4 = edge(Ja,'canny');

imshow(BW3);figure;

imshow(BW4);figure;

 %cov(count(:,1))

p=corr2(BW3,BW4);

%p=BW1 * BW2;

[X,Y]=meshgrid(-1:.005:1);

Z=peaks(p);

%imshow(p);figure;

%plot(Z,p);

mesh(X,Y,Z);

Z = fspecial('gaussian');

 figure, freqz2(Z,[64 64]), axis([-1 1 -1 1 0 1])

 

 

 

                                Figure1                                                                       

 

 

           

 

 

 

 

                       Figure2

 

 

 

 

Figure3

 

                  Here two same pictures are used but noise is inserted in one of them by using imnoise() function. Three parameters are passed through this function. First one is the variable where the picture is saved in which noise is to be inserted, second one is the type of noise, third one is parameter.

 

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