how to find defects in fabric metrials?

There different types of defects going to occur in the fabric.i want to detect and classify those defects.... images are color only..and what is the basic type of alogorithm i have to use to find and classify those defects

[darova]

k-means?

[PRABAKARAN K]

dear sir i could not undersatand your question

[darova]

k-means is a function for segmentation images

LOOK

[PRABAKARAN K]

sir i have the simple coding for fabric defect detection.............but i will not work for all the types of defects

% referecnce image 
I = imread('color.JPG');
% Filter the image.
subplot(3,3,1);
imshow(I);
J = imread('color3.JPG');
% Calculate the absolute difference of the two images.
subplot(3,3,2);
imshow(J);
K = abs(I-J);
% Display the absolute difference image.

subplot(3,3,3);
imshow(K,[]);
a=rgb2gray(K);
subplot(3,3,4);
imshow(a);
% b=~a;
b=strel('line',3,100);
c=imdilate(a,b);

subplot(3,3,5);
imshow(c);
d=~c;
subplot(3,3,6);
imshow(d);

e=wiener2(d,[1 20]);

subplot(3,3,7);
imshow(e);

So i request you to say how to modify the flow of the program to find the all defetcs

[darova]

Where are defects?

[PRABAKARAN K]

Common Defects of Fabrics during manufacturing process includes back fabric seam impression, birds eye, bowing, broken colour pattern, colour out, colour smears, crease mark, drop stitching, dye streak in printing, hole, jerk in, knots, mixed yarn, mottled, needle line, open reed, pin holes, press off etc.

[darova]

How do they look like?

[PRABAKARAN K]

This is some types of images shows some defects in the fabrics

[darova]

Did you try bwlabel?

Use regionprops to find bigger areas

[PRABAKARAN K]

i am asking the flow of the coding.......... i am in the starting level in the matlab......... so pls guide me how to start the program and come to the solution

[darova]

I have already guided you. Read about bwlabel, regioprops

Answer 1

[Image Analyst]

There have been numerous papers on this. Check out Vision Bibliography to see most of them.

In addition, I know North Carolina State University has a textile group and I know of at least one Ph.D. dissertation who worked on that (I interviewed him for a job many years ago). They are most probably the most experienced lab in the USA on textiles. They have a whole college on textile science. Click here: Wilson College of Textiles

[PRABAKARAN K]

i am asking the flow of the coding.......... i am in the starting level in the matlab......... so pls guide me how to start the program and come to the solution

[Image Analyst]

I cannot personally guide you in how to use MATLAB, how to develop an algorithm, start the program, or come to a solution. I suggest you start with The MATLAB Academy or take some training courses either online or in person.