IRIS detection and Recognition MATLAB source code

This page covers step by step matlab code for eye iris detection or recognition.

matlab code

clear all;
close all;
clc;
%Reading the image
Img=imread('002L_1.png');
%%Pre Processing and Normalisation
figure;imshow(Img);title('INPUT EYE IMAGE');
%%Step 1: Converting to Gray sclae from rgb
Gray_imag=rgb2gray(Img);
figure;imshow(Gray_imag);title('IMAGE after Gray conversion');
%Deleting extra portion
t2=Gray_imag(:,65:708);
t3=t2(18:563,:);
figure;imshow(t3);title('IMAGE after Deleting extra portion');
%%Step 2: Resizing the image(546x644) to 512 x 512
t4=imresize(t3,[512,512],'bilinear');
figure;imshow(t4);title('IMAGE after resize');
%%Step 3: Histogram Equlisation
Hist_eq_img = histeq(t4,512);
figure;imshow(Hist_eq_img);title('IMAGE after Histogram Equlisation');
% Step 4: Gaussian Filtering
G = fspecial('gaussian',[512 512],20);
%Filter it
Hist_eq_img=double(Hist_eq_img);
Ig = imfilter(Hist_eq_img,G,'same');
%Display
%%Step 5: Canny Edge detection
BW2 = edge(Ig,'canny',0.53,1);
figure;imshow(BW2);title('IMAGE after canny edge detection');