Edge detection using Fuzzy Logic
4 visualizzazioni (ultimi 30 giorni)
Mostra commenti meno recenti
I am trying to detect edge of gray scale image using fuzzy logic. In my code first I am trying to detect edge and then to remove noise. Edge detection part is working,but noise removal part have not worked. Edge detection pixels have values between 0 to 50 and background pixel values have constant value i.e. 128. In case of noise removal I put if else conditions . But each checked pixel i.e. z(i,j) satisfies only if condition whether it is true or not. Following is my code.........
a=imread('a.jpg');
g1=rgb2gray(a);
g=imresize(g1,[200 200]);
[m,n]=size(g);
%figure, imshow(g)
%edge detection part
t=readfis('edge.fis');
z=uint8(zeros(m,n));
for i=2:m-1
for j=2:n-1
F = [g(i-1,j-1) g(i-1,j) g(i,j-1) g(i,j)];
h=double(F);
z(i,j)=evalfis(h,t);
end
end
disp(z)
figure, imshow(z)
%noise removal part
z2=uint8(zeros(m,n));
for i=2:m-1
for j=2:n-1
if ((0<=z(i-1,j-1)<=50) & (0<=z(i-1,j)<=50) & (0<=z(i-1,j+1)<=50) & (0<=z(i,j-1)<=50) & (0<=z(i,j)<=50) & (0<=z(i,j+1)<=50) & (0<=z(i+1,j-1)<=50) & (0<=z(i+1,j)<=50) & (0<=z(i+1,j+1)<=50))
% if z1(i-1,j-1)==0 && z1(i-1,j)==0 && z1(i-1,j+1)==0 && z1(i,j-1)==0 && z1(i,j)==0 && z1(i,j+1)==0 && z1(i+1,j-1)==0 && z1(i+1,j)==0 && z1(i+1,j+1)==0
z2(i,j)=128;
else
z2(i,j)=z(i,j);
end
end
end
figure, imshow(z2)
2 Commenti
matlab_image
il 31 Mag 2012
hi Res,
I cant help you but i need ur help. i also want to do edge detection with fuzzy logic. but i don't know how to start. can you please suggest me something for writing fuzzy logic code.
Thanks in advance
Risposte (3)
Omid Sarrafzadeh
il 30 Lug 2012
Hi Res It depends on your 'edge.fis' FIS and your rules. May I know more about them?
Arkadiy Turevskiy
il 20 Mar 2014
Please take a look at a new example we added in 14a showing how to do edge detection with Fuzzy Logic .
0 Commenti
hamed Aghapanah
il 4 Ott 2019
Dear Res,
I do it and ind that there are many solution to find edge. Because the result is related to Membership Functions.
which one is the best solution?
thanks
0 Commenti
Vedere anche
Categorie
Scopri di più su Fuzzy Logic Toolbox in Help Center e File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!