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color Image Segmentation

version 1.1.0.0 (16.4 KB) by Athi

Athi (view profile)
Segments a color image into regions.
4.2
14 Ratings

33 Downloads

Updated 07 Jun 2011

View License

This program segments a color image into different regions.
The steps followed for segmentation in this program is as follows:

1. The input color image will be coarsely represented using 25 bins.
2. Coarse representation uses the spatial information from a Histogram based windowing process.
3. K-Means is used to cluster the coarse image data.

Those who are new to Matlab Programming can see the "SampleUsage.m" file for the usage of the script "colImgSeg.m".

Those who are already familiar with Matlab Programming can directly use the script "colImgSeg.m".

Cite As

Athi (2020). color Image Segmentation (https://www.mathworks.com/matlabcentral/fileexchange/25257-color-image-segmentation), MATLAB Central File Exchange. Retrieved .

Comments and Ratings (27)

Vita Shevchenko

Vita Shevchenko (view profile)

Hi.
Athi, I need your help.
Run your file and have the result in grey colour.
Don't understand...

Mohamed Asif

Mohamed Asif (view profile)

mert vatansever

mert vatansever (view profile)

hi Athi,
ı need more explanation about your codes.
so if its possible give me a more more details?
actually ım so new for matlab but ı have a homework about this subject. so pls help me if you can.

more details. more comment about codes. :)

ELIJAH JOSEPH

ELIJAH JOSEPH (view profile)

Thanks for this, it is really helpfull

Ashraful Alam

Ashraful Alam (view profile)

How can i get matlab code in colour image segmentation.

Manini

Manini (view profile)

Hi Athi
I have implemented your code..
i am getting correct output when i run it first time..but when i try to run it next time i am getting this error..
Index exceeds matrix dimensions.

Error in colImgSeg (line 22)
temp((n+1):(end-n),(n+1):(end-n),2)=inImg(:,:,2);

Error in nbinsusage (line 19)
outImg = colImgSeg(inImg, nBins, winSize, nClass);

please help me to resolve the same..
thanks

Sabarinathan Vadivelu

Sabarinathan Vadivelu (view profile)

ljklpsy

ljklpsy (view profile)

May i ask if there is a way to keep the same color for the same region of an image if running kmeans several times? thanks a lot!!!

lbrce

lbrce (view profile)

fff

waseem ahmad

waseem ahmad (view profile)

hi athi,
i need to find the center of a colored region if u can help me,plz?

Thendral

Thendral (view profile)

Hi Athi
When i am running this code i am getting error like this

Error in ==> colImgSeg at 24
s = size(inImg);
Plz help me

AMIT

AMIT (view profile)

hi athi
thnx dude
can you plz send me the Literature of this program
it will help me in myproject

thnx
amit

Saravanan

Saravanan (view profile)

Its good,

fusedMap = kmeans(inImg_1D,nClass, 'EmptyAction', 'singleton');

I am working on medical images, where the fusedMap becomes NULL.

Whether its for particular type of images ?

Biao

Biao (view profile)

if the illustration algorithm is more specific, this program will be more honorable!

Biao

Biao (view profile)

thank you so much! it's useful!

Juan Du

Juan Du (view profile)

Hi Athi,

Thank you. This is very useful tool. I also want to segmenting HSI images. But it does not work with this code. This code seems only works on RGB image. Can you help me to solve the problem?

Thanks.
JD

zhao qiang

zhao qiang (view profile)

zhao qiang

zhao qiang (view profile)

Hi Athi,
Nice contribution.
your program is unstabe ,this is because of the function kmeans,you can try it.
and i want konw what is the meaning of the following statements?

lab = floor(mat(i,j,1)/divis)*(nBins*nBins);
lab = lab + floor(mat(i,j,2)/divis)*(nBins);
lab = lab + floor(mat(i,j,3)/divis);
lab = lab + 1;
TabLabel(lab) = TabLabel(lab) + 1;
sum_lab = sum_lab + lab;
i think this is a weighted action?but why?
look for your reply~
regards,
zq

Theodoros Giannakopoulos

Theodoros Giannakopoulos (view profile)

Farie

Farie (view profile)

Hi, I tried your program but got lot of errors, like not in the loop, unused variables. Can you fix it?

Ashok Kumar

Ashok Kumar (view profile)

nanang krisdianto

nanang krisdianto (view profile)

hi Athi

when i am running the code,
Why i have notification like this

??? Input argument "inImg" is undefined.

Error in ==> colImgSeg at 24
s = size(inImg);

jichao zhao

jichao zhao (view profile)

why I have the following error, I do not have Image Processing Toolbox?

??? Undefined function or method 'kmeans' for input arguments of type 'double'.

Error in ==> colImgSeg at 81
fusedMap = kmeans(inImg_1D,nClass, 'EmptyAction', 'singleton');

Error in ==> SampleUsage at 18
outImg = colImgSeg(inImg, nBins, winSize, nClass);

Vignesh

Vignesh (view profile)

Its working fine. It helps me to understand color histogram fuzzification. Thanks a lot.

Athi

Athi (view profile)

Dear Ramana Murthy,

The output matrix will be same.
But the coloring may differ. Because of default color usage & K-Means.
Am I answered your question?

Venkat R

Venkat R (view profile)

Venkat R

Venkat R (view profile)

Hi Athi,
Nice contribution.
When we run the program on same image, different results are coming. It appears there is some bug in your terminating criterion in clustering. Can you fix it.

regards,
ramana

Updates

1.1.0.0

Author Info Updated
MATLAB Release Compatibility
Created with R13
Compatible with any release
Platform Compatibility
Windows macOS Linux

ColorImageSegmentation/