MATLAB: Help to identify the mistake

Image Processing Toolboxmedian filter

code doe median filter.i am no able to get the final filtered output image.plz help me to rectify the mistake
clc
clear all
close all
i=imread('peacock.jpg');
imshow(i);
i=imnoise(i,'salt & pepper',0.05);
figure,imshow(i)
p=input('Enter the size of kernel of median filter, (n for nxn matrix):');
pad=uint8(zeros(size(i)+2*(p-1)));
%loop for padding the zeros
for x=1:size(i,1)
    for y=1:size(i,2)
        pad(x+p-1,y+p-1)=i(x,y);
    end
end
%loop for finding the median & replacing the central pixel
for i= 1:size(pad,1)-(p-1)
    for j=1:size(pad,2)-(p-1)
        kernel=uint8(ones((p-1)^2,1));
        t=1;
        for x=1:p-1
            for y=1:p-1
                kernel(t)=pad(i+x-1,j+y-1);
                t=t+1;
            end
        end
        filt=sort(kernel);
        out(i,j)=filt(5);
    end
end
figure,imshow(out); %show the final recovered image

Best Answer

Its works for my sample image, I have choosed n more than>3, like 5,7....
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