putting an ellipse/ filtering out back noise in image

Hello I am stuck! I am attempting to just get a clear segmentation of my iris (the black circle) however I feel like what im trying isnt working if anyone can help with this that would be awesome. Alos putting an elipse around the circle. I have been stuck on this for days

eye=imread("niceeye.jpg");
eyeBW = imbinarize(eye,"adaptive");
filtersize= [1 1];
avg = fspecial('average',filtersize);
eyeavg = imfilter(eye,avg,"circular");
eyeavgBW = imbinarize(eyeavg,"adaptive","ForegroundPolarity","bright");
%circeye = imfindcircles(,eyeavgBW,5)
idkeye=bwareaopen(eyeavgBW,11000);
figure,axes,imshowpair(idkeye,eyeavgBW,'montage')
idkpt2 = imclearborder(idkeye,8);
edgeeye= (idkpt2)
imshowpair(edgeeye,idkpt2,'montage')

[Matt J]

We cannot Run the code since niceeye.jpg is not attached.

[Jose]

[Jose]

This is the file

[Matt J]

I see a screenshot but no file attachment. If we download the screenshot, it would not necessarily be the same as the file your are testing on.

[Jose]

How about now!

[Jose]

here

Answer 1

[Image Analyst]

I'm pretty sure I already told you in a duplicate question to get a successful, working, published algorithm here:

21.5.3 Biometrics, Iris Recognition Systems

• 21.5.3.1 Periocular Biometrics
• 21.5.3.2 Iris Based Biometrics, Biometrics Engineering Research Center, Dongguk University
• 21.5.3.3 Iris Recognition Systems, Infrared, Near-Infrared, NIR Based
• 21.5.3.4 Iris Recognition Systems, Spoofing, Liveness, Presentation Attack, Contact Lenses
• 21.5.3.5 Iris Recognition Systems, Wavelet Based
• 21.5.3.6 Iris Detection, Segmentation and Localization Systems
• 21.5.3.7 Iris Recognition Systems, Systems, Evaluation, Comparison, Surveys

That will be way better than anything any of us here can think up off the top of our head.