i have 20 images and i want to cluster these images using k mean clustering in 5 group. please send me code

i have 20 images and i want to cluster these images using k mean clustering in 5 group. how to perform in matlab. please send me code

[Walter Roberson]

http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer

[Walter Roberson]

Cluster on what basis? How mauvey their shade of pinky-russet is?

[rohit ranjan]

i have 20 or more than 20 images and cluster them on the basis of colour and shape in different group.for example i have 5 image of butter, 5 image of coke, 5 image of fruits in a folder now i have to use k mean clustering on the image.