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');