Tag Archives: C programming

Insertion Sort Code in Matlab 2-D

clc, clear, close all;
tic
a=imread(‘lena_gray.tif’); imshow(a);
nf=.5;
ws=3;

b=imnoise(a,’salt & pepper’,nf);
figure,imshow(b);

[m1 n1]=size(a);
ll=floor(ws/2);
y=zeros(m1+ws-1); % b1 is zero matrix of 514*514
y=uint8(y); % b1 is a unsign 8 bit
[m n]=size(y); % Size of b1 matrix is 514*514
y(ll+1:m-ll,ll+1:n-ll)=b; % b1(2:513,2:513)

for i = 2:m1-1
for j = 2:n1-1
flg = 0;
n = size(b);
for l = 2:n;
key = y(l);
k = l-1;
while(k>0 && y(k)>key)
y(k+1) = y(k);
k = k-1;
y(k+1)=key;
end
end
if y(i,j) == 0 || y(i,j) == 255
flg = 1;
end
if flg == 0
if S(1) < y(i,j) && y(i,j) < S(5) && 0 < S(1) && S(9) < 255
y(i,j) = y(i,j);
end
else
if S(1) < S(5) && S(5) < S(9) && 0 < S(5) && S(5) < 255
y(i,j) = S(5);
end
if S(1) >= S(5) || S(5) >= S(9) || S(5) == 255 && S(5) == 0
y(i,j) = y(i,j-1);
end
end
end
end
y(1,:) = y(2,:);
y(R,:) = y(R-1,:);
y(:,1) = y(:,2);
y(:,C) = y(:,C-1);
b2=b1(ll+1:m-ll,ll+1:n-ll);
figure,imshow(b2);
toc

Pirate

Advertisements