Face Liveness detection ....

my code is below in which live face crop mannualy after that crop face shows then I crop manually skin of that face and save in 50 by 50 pixel and then I have to comapre that skin image having size 50 by 50 with my two database One of them database is of 50 images is fake face skin by mobile captured another database is live face skin captured by webcam. I have to compare with that live skin image with two database what to do...?? my code is

vid = videoinput('winvideo', 1);
set(vid, 'ReturnedColorSpace', 'RGB');
img = getsnapshot(vid);
imshow(img)
j= imcrop(img);
imshow(j);
k= imcrop(j);
imshow(k)
test =imresize(k,[50 50]);
figure, imshow(test);

newName = strcat(num2str(1),'.jpg');
imwrite(test,['test\' newName,]);
testpath = 'C:\Users\PRITI KALE\Desktop\rani\test';
TestImage = strcat(testpath,'\','1.jpg');
D = dir(TestImage);
imgcount = 0;
for i=1 : size(D,1)
    if not(strcmp(D(i).name,'.')|strcmp(D(i).name,'..')|strcmp(D(i).name,'Thumbs.db'))
        imgcount1 = imgcount + 1; % Number of all images in the training database
    end
end
str = strcat(TestImage ,'\',int2str(i),'.jpg');
img = imread(TestImage);
img = rgb2gray(img);
glcm2 = graycomatrix(img);
stats1 = graycoprops(glcm2);
live1(i)=stats1.Homogeneity;



Datapath2 = 'C:\Users\PRITI KALE\Desktop\rani\fake\Fake';  % path of program files and data on your pc
disp 'start....'
disp 'reading dataset...'
D = dir(Datapath2);
imgcount1 = 0;
for i=1 : size(D,1)
    if not(strcmp(D(i).name,'.')|strcmp(D(i).name,'..')|strcmp(D(i).name,'Thumbs.db'))
        imgcount2 = imgcount1 + 1; % Number of all images in the training database
    end
end


for i = 1 :50
    str = strcat(Datapath2,'\',int2str(i),'.jpg');
    img = imread(str);
    img = rgb2gray(img);
    glcm2 = graycomatrix(img);
    stats2 = graycoprops(glcm2);
    fake(i)=stats2.Homogeneity; %#ok<SAGROW>
end

Datapath2 = 'C:\Users\PRITI KALE\Desktop\rani\live\Live';  % path of program files and data on your pc
disp 'start....'
disp 'reading dataset...'
D = dir(Datapath2);
imgcount2 = 0;
for i=1 : size(D,1)
    if not(strcmp(D(i).name,'.')|strcmp(D(i).name,'..')|strcmp(D(i).name,'Thumbs.db'))
        imgcount3 = imgcount2 + 1; % Number of all images in the training database
    end
end


for i = 1 :50
    str = strcat(Datapath2,'\',int2str(i),'.jpg');
    img = imread(str);
    img = rgb2gray(img);
    glcm2 = graycomatrix(img);
    stats2 = graycoprops(glcm2);
    live(i)=stats2.Homogeneity; %#ok<SAGROW>
end


output = live1(i)>= fake(i) & live1(i)<= fake(i);

if output<=0.9894
    
    disp('The image is live ') % display
else
    
    disp('The image is fake ') % display
end

[Rik]

This time I edited your question for you. Next time, please use the tools explained on this page to make your question more readable.