find the pupil location of eye by dividing it into 8x8 region

hello, i am working on iris localization. i am using an eye of 240x320 and i want to determine the pupil location using divide it into 8x8 matrix region. But i am not getting the exact matlab program.plz help me.

Answer 1

[Nitin]

The pupil region has a lower intensity than the rest of the image except for eyelashes.

I would suggest you use an appropriate threshold in the initial phase.

Then you can select the pupil based on the size of the objects in your binary image using regionprops using 'Area' -- the pupil will have the largest area here.

Hope this helps

[SMRITI]

i need the complete program for iris localization using 8x8 region method

[David Young]

Why 8x8 regions? Why not localise the pupil using standard methods?

[SMRITI]

can u plz help me about standard methods with their MATLAB program

[Nitin]

Have a look at Libor Masek's iris code. You can find both the thesis and the Matlab code here here