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to_enroll.m
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to_enroll.m
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clc;
clear all;
close all;
warning off all;
%% Inputs
[x y] = uigetfile('*.jpg','Select an Image');
testimg = imread([y x]);
name=input('Enter New User:','s');
testimg=imresize(testimg,[255 255]);
figure,imshow(testimg); title('Input Eye Image');
axis off
%% Conversion
if size(testimg,3) == 3
I = rgb2gray(testimg);
end
figure,imshow(I);title('Gray Image ');
impixelinfo;
R = testimg(:,:,1);
G = testimg(:,:,2);
B = testimg(:,:,3);
%% otsu thresholding
[M,N]=size(G);
s=zeros(M,N);
for i=1:M
for j=1:N
if G(i,j)<150;
G(i,j)=0;
end
end
end
figure,imshow(G),title('segmented Sclera');
enhances_contrast=adapthisteq(G);
enhances_intensity=imadjust(enhances_contrast);
binary_conv = imcomplement (enhances_intensity);
figure,imshow(enhances_intensity),title('Intensity enhanced');
figure,imshow(binary_conv),title('convoluted image');
%% Segmentation of Sclera vein
G=imcrop(G,[18 87 103 101]);
G=imresize(G,[255 255]);
sa = 0.1;
rt = mim(G,sa);
[tt1,e1,cmtx] = myThreshold(rt);
ms = 2;
mk = msk(G,ms);
rt2 = 255*ones(M,N);
for i=1:M
for j=1:N
if rt(i,j)>=tt1 & mk(i,j)==255
rt2(i,j)=0;
end
end
end
J = im2bw(rt2);
J= ~J;
[Label,Num] = bwlabel(J);
Lmtx = zeros(Num+1,1);
for i=1:M
for j=1:N
Lmtx(double(Label(i,j))+1) = Lmtx(double(Label(i,j))+1) + 1;
end
end
sLmtx = sort(Lmtx);
cp = 0.1;
for i=1:M
for j=1:N
if (Lmtx(double(Label(i,j)+1)) > cp) & (Lmtx(double(Label(i,j)+1)) ~= sLmtx(Num+1,1))
J(i,j) = 0;
else
J(i,j) = 1;
end
end
end
for i=1:M
for j=1:N
if mk(i,j)==0
J(i,j)=1;
end