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PCA-based Face Recognition System

version 1.0.0.0 (180 KB) by Amir Omidvarnia

Amir Omidvarnia (view profile)
This package implements 'Eigenface', a PCA-based face recognition system.
4.3
46 Ratings

38 Downloads

Updated 22 Oct 2007

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This package implements a well-known PCA-based face recognition method, which is called 'Eigenface'.
All functions are easy to use, as they are heavy commented. Furthermore, a sample script and two small training and test databases are included to show their usage.

Cite As

Amir Omidvarnia (2020). PCA-based Face Recognition System (https://www.mathworks.com/matlabcentral/fileexchange/17032-pca-based-face-recognition-system), MATLAB Central File Exchange. Retrieved .

Comments and Ratings (70)

MOHAMMED TAJUDDIN

MOHAMMED TAJUDDIN (view profile)

Hendy William Sino

Hendy William Sino (view profile)

Ridvan cakir

Ridvan cakir (view profile)

Ridvan cakir

Ridvan cakir (view profile)

SUBASH P

SUBASH P (view profile)

when test image is in database then it shows the equivalent image, if the test image is not in database then it shows another person image as Equivalent image
why it is not showing any error (or) return something as "image not found in database"
someone please us.

SUBASH P

SUBASH P (view profile)

Can You please tell me what is traindatabasepath in firstline of CreateDatabase()

Mohsin Shah

Mohsin Shah (view profile)

Amir you have done a great job. I was reading tutorials and other materials for understanding the EigenFace algorithm but I couldn't. Your code is simple and commented in the best way it could be that understood the algorithm very easily. Thank you so much. ALLAH bless you.

Sujay Patole

Sujay Patole (view profile)

@kishore when you use your own database ,your images should be of same resolution. use reshape command to make them of same resolution

Sarala Devaguptapu

Sarala Devaguptapu (view profile)

Worked in a go! Thank You.

mani sharma

mani sharma (view profile)

Thanx a lot ,, its really helpful

kishore vutukury

kishore vutukury (view profile)

Amir Sir,Is there any limitations for the input.?When am giving my own database few errors r encountered
Error using horzcat
Dimensions of matrices being concatenated are not consistent.

Error in CreateDatabase (line 47)
T = [T temp]; % 'T' grows after each turn

Error in example (line 26)
T = CreateDatabase(TrainDatabasePath);
Please reply.
Thanks in advance

abhilash verma

abhilash verma (view profile)

great work ..thank you

Ban gocrieng

Ban gocrieng (view profile)

thank

Nazanin Nejatian

Nazanin Nejatian (view profile)

your work is great.thanks a lot Amir

jeba shanthi

jeba shanthi (view profile)

vu hung

vu hung (view profile)

ádsggdfgdfgdfg

noo no

noo no (view profile)

how calculate accuracy for this code

Carine

Carine (view profile)

Hello, this code does not give right results if the training database contains the image that we choose for testing. If the image chosen for testing is a face that already exists in training database but a different image of the face, it's not giving the correct results, anyone having same problem?

Shubhankar De

Shubhankar De (view profile)

poongothai rajan

poongothai rajan (view profile)

i want to use hsv in pca...i extracted HSV feature from my data base..but want to then use pca ..any one know the procedure..if anyone have idea with this mail me..

poongothai rajan

poongothai rajan (view profile)

@nadeer ataya ...even after chnaging am getting the same error

Divyakant Meva

Divyakant Meva (view profile)

Hello, can u suggest how can I change dimension of all my 320x240 images to 200x180 images? It is urgent for me.

nadeer ataya

nadeer ataya (view profile)

@poongothai rajan
changed images to .jpj

poongothai rajan

poongothai rajan (view profile)

@SUMAN AND RAMYA

i also got the same error..the solution is this will work for same dimension images..i changed all my images in the data base with same dimension eg(200*180);
then i got the output..try it best wises

Jackie

Jackie (view profile)

suman

suman (view profile)

this code is not working for my own database i am getting error as
Error using ==> horzcat
CAT arguments dimensions are not consistent.

Error in ==> CreateDatabase at 47
T = [T temp]; % 'T' grows after each turn

Error in ==> example at 26
T = CreateDatabase(TrainDatabasePath); how to clear this errors... any one help me to clear this error

Pooja

Pooja (view profile)

The code is good but it doesnt work if d same person has his/her face tilted.I eanted a code for that. But good job though!!

pakarat dung

pakarat dung (view profile)

thank youuuu

Jack Claudiu

Jack Claudiu (view profile)

Vipin Kamble

Vipin Kamble (view profile)

Great Work .. !!!!

Nehal Patel

Nehal Patel (view profile)

great work..in your code it is not show eigenvalue ..it is just recognize face with train image.can you tell me how to show eigenvalue?

KARTHIK

KARTHIK (view profile)

Can the anyone tell me why the Eigenfaces is 36000*19 instead of 36000*20?

Jai Gupta

Jai Gupta (view profile)

@shruti, were u able to connect webcam and compare pictures taken by it with your database. i want to do the same, if anyone else can also help?

Shruti

Shruti (view profile)

great work!! i have created my own traindatabase , but if i eliminate test database and try to take the test image via webcam and store it directly into a matlab variable and then run the program , it is not recognising my image but rather match some other face in the traindatabase.. i have resized test image appropriately and no errors are found when i run the code.. just face recognition fails... please suggest if i need to make any changes in the code or any other measures need to be taken into account while image capture through webcam like lighting. or any specific background needed.. please reply and help me ..

Ibraheem Al-Dhamari

Ibraheem Al-Dhamari (view profile)

Thanks for the nice work. Try to add 2D PCA implementation.

Caelyn Low

Caelyn Low (view profile)

debasish

debasish (view profile)

debasish

debasish (view profile)

great work indeed!!very neatly computed!...I will be very happy if you can suggest how we can reject non-face images by calculating the Euclidean distance of the mean/centered test image from the face space??(Re:"Pentland and Turk:Eigenfaces for Recognition)

Shamir Alavi

Shamir Alavi (view profile)

I've run the code several times using my own face database and it seems its trying to recognize on the basis of same file names in both training and test folders !!! I changed the file names several times to check this theory and as suspected, the recognition came out to be wrong. Only once it truly recognized the same face having different file names. Most of the times, it was just matching both 1.jpg files regardless of whose picture i put there.

Moussab Bennehar

Moussab Bennehar (view profile)

Hello,

I noticed that you don't sort the eigenvectors at all. All you did was keeping the eigenvalues that are greater than 1 and their associated eigenvectors.
Can you tell me why please.

Kyle Lee

Kyle Lee (view profile)

Can the author or anyone tell me why the Eigenfaces is 36000*19 instead of 36000*20? Why the D[1 1] would be negative value that causes the dimemsion to be 19?

Partha Bera

Partha Bera (view profile)

perfect!

kumar reddy

kumar reddy (view profile)

how to add all THE THREE FUNCTIONS WHILE RUNNING THE EXAMPLE IT IS ASKING FOR DATABASE SO PLEASE HELP ME

Mingqin

Mingqin (view profile)

excellent

Ramya loganathan

Ramya loganathan (view profile)

nice work.... very thanks.. when i am trying to import another photos but it shows
??? Error using ==> horzcat
CAT arguments dimensions are not consistent.

Error in ==> CreateDatabase at 47
T = [T temp]; % 'T' grows after each turn

Error in ==> example at 26
T = CreateDatabase(TrainDatabasePath); how to clear this errors... any one help me to clear this error..........

Liam Mescall

Liam Mescall (view profile)

Impressive - thanks for the help

Divya Muralitharan

Divya Muralitharan (view profile)

Hi,
its really a great job...

sanyuktha

sanyuktha (view profile)

Hi,
A really excellent piece of work. Thank You.
How to make this program reject unknon faces(those faces which are not in train database)?

dwi arliani

dwi arliani (view profile)

how to get the original eigenvalue (without eliminating eigenvalue under threshold)?because it cause error when i run Recognition.m.
it says "minus
Matrix dimensions must agree." because i realize that eigenfaces result is 19x20.. but the testing image is 20x20..
thx for your help :)

Anselm Griffin

Anselm Griffin (view profile)

Like all the other comments well done. Simple and to the point

Muhamad nasri

Muhamad nasri (view profile)

good, but I found a little problem, when running EigenfaceCore.m, says "??? Input Argument 'T' is undefined", how to solved this problem ?? please to help me

Namal Fernando

Namal Fernando (view profile)

This is a really great work sir... But can I know how we can train this system to identify new faces.

Ganesh AS

Ganesh AS (view profile)

Hello, taking 19 of 20 eigen values is no feature extraction :D

raja

raja (view profile)

great work sir...i can understand it easily as it is commented well..thanks

Alex

Alex (view profile)

Code is well commented and it works well, however, the images used for training are the same that are used for testing. No wonder it works!

manzoor lone

manzoor lone (view profile)

i am very very very happy with with the pca based face recognition

daba Dabarera

daba Dabarera (view profile)

Thank you very much!

Nick Yeow

Nick Yeow (view profile)

i am trying to use eigenface method in my project (face recognition via web cam).
but when i try import other picture into training & test image then run it. But error message pop-up
:"All matrices on a row in the bracketed expression must have the
same number of rows"
Any ideals to solve it?
thanks..very appreciate

Sergio Rodriguez

Sergio Rodriguez (view profile)

Hanaa

Hanaa (view profile)

Hi

How do you detect facial features using template matching?

I'll be very grateful for your help. Thanks! :)

sara

sara (view profile)

good job ,thank you

Emmanuel Muring

Emmanuel Muring (view profile)

very good..im very thankful..but i need a program that detect a fece so i can interface it with the face recognition program..God bless

hba osman

Abdullah Janazerah

you r great man

lili chen

lili chen

Very good

maggie King

great,Thanks

abc xyz

simple, nicely implemented, commented extremely well

Qureshi i

Good job done

karl karlos

excellent

MATLAB Release Compatibility
Created with R2006a
Compatible with any release
Platform Compatibility
Windows macOS Linux

PCA_based Face Recognition System/