Face Detection in 2 Minutes using OpenCV and Python

[@adithyasai8987]

while others are struggling to explain opencv. you did it in a simple way. In just 2 min GREAT vlog

[@interesting7215]

this is not 2 min...

[@shuaibsugaran8936]

actually he skip it for a seconds without skipping the countdown in the screen

[@voltifer5267]

This is not a vlog. If you don’t know, don’t use it

[@nainaalex9053]

You gotta be kidding me.. The error I've been trying to fix got fixed in 2 seconds just cuz of you 🔥 Thanks buddy!

[@Integralsouls]

i really have to say ...nice work man ...u deserve to be recognised not just be these cascades but also by real people all around this ML community...

[@AdarshMenon]

Thank you so much 😀

[@nalinin2505]

@@AdarshMenon which terminal have u used

[@okokicici]

This helped me a lot done with my project just in 15 mins😊 ,.... U r fabulous bro...

[@bunnyvlogs7647]

u earned my like with 2 min stopper clock

[@albertovarela6050]

Thank you!!! I tried to do this for more than a month... You explained very well!

[@philliphelmut1077]

Great Video, everyone else makes hour-long videos and explains basically the same stuff, here I learned all what is important in 6min. Good job!

[@mufeezazam4763]

@Maryam Ashraf i can

[@faizahmed7524]

@@mufeezazam4763 i want it.. Please if u can

[@shubhamkhupase6514]

Bro explained very well. Just carry on !!!!

[@shaad498]

Watched every commercial videos but got the thing in DESI ONE

[@okokicici]

Can u pls upload about human activity recognition

[@leamlisophara731]

I have some error with this --> 'cv2.CascadeClassifier' object has no attribute 'detectMultiScal'. Could you tell how to fix it ????

[@ahmed1o137]

good job man. keep up the good work because im sure it'll pay off in the long run. its rare to find talanted teachers and you are definitely one. simply well done

[@anadani81917]

Finally, a good video. Thank you!

[@AdarshMenon]

Glad you liked it!

[@chijonyacigak3119]

This was really insightful keep on going

[@atlurivijay10]

So I have been getting this error OpenCV(4.1.2) /io/opencv/modules/imgproc/src/color.cpp:182: error: (-215:Assertion failed) !_src.empty() in function 'cvtColor' any idea?

[@akankshachoudante2489]

Please help me sir..it is showing error no Module named cv2

[@AdarshMenon]

make sure you have installed opencv - run pip install opencv-python

[@akankshachoudante2489]

@@AdarshMenon sir I have followed all the steps.already installed openCV n I have saved raw file as well .but this error is coming

[@AdarshMenon]

@@akankshachoudante2489 if you are on python3 then you might also want to try pip3 install opencv-python. Or the recommended way is to create a virtual env and do everything inside it

[@akankshachoudante2489]

@@AdarshMenon ok thank you Sir I will try ...

[@roku1892]

Nice, clean and good explanation tutorial ❌ Indian guy tutorial, machine sound, cursed audio 👍👍👍👍

[@rohitsharma-pz1xc]

This is great video, I knew the basics off all the commands, your video helped me put all my knowledge to a functional detector. Thank you

[@alizekhan2745]

Plz tell me which terminal is used in this video?

[@gaurav_jambhulkar]

@@alizekhan2745 It's Linux terminal :-)

[@cubeheadii9284]

can you explain the last commad you put in the terminal? pleeeeees

[@radhikaravindra7293]

Best one I have come across on KZbin. Works without any error SO INSTANTLY. Keep more coming!

[@AdarshMenon]

Thanks, will do!

[@herecomestherainagain3031]

u are a king man thanks from turkey

[@rusbiantrush4576]

hi Ardas, thanks for your Lesson. god bless you ..Rusbi from Indonesia

[@shouviksamadder5193]

by far the best explanation

[@marcusbeck2329]

In what software do you code this

[@safabelhadjromdhane2922]

Hello, I have a question to ask, I did the exact same thing as you in the video but the program didn't work and it announced an error while running the color saying "error: (-215:Assertion failed) !_src.empty() in function 'cv::cvtColor' " how do I fix it ? and thanks in advance for your help.

[@ammarammarammarammarammar]

try again but make sure you webcam wasnt use that time

[@raviteja843]

Same error can anyone help me with this one!

[@palakeetivikas2569]

can u explain this part cv2.waitKey(30) & 0xff

[@abdullaal-bader46]

hello, there is a problem in line 19

[@lokeshperimi3710]

hiii bro where i have to load harrcascade file and how to come up into vs code

[@arpanhalder582]

Please tell me what is the platform name where you writing code

[@Evolutionofacharyaprsant]

Hello buddy I have cctv footage video it's possible to detect the face coz the face in video lil blur

[@infobox-Hindi]

Can u please make video like detecting the presence of human and with respect to open or close the relay

[@ruggy1689]

can i ask how do i run it? i've done the code but how do i get the camera to pop up with that code?

[@AdarshMenon]

You need to use a command prompt on windows (or terminal) to run this. You need to install python first of all to do that, and the library open-cv for this to work. Please search for 'how to install python on windows/whatever OS you have'

[@ruggy1689]

@@AdarshMenon hello, im doing your code for almost 5 hours can u help me? it says "python: can't open file (filename)" No such file or directory.

[@ruggy1689]

@@AdarshMenon i already have the python

[@MrThe1000thman]

same problem. i already installed python and opencv

[@pranitsawant6085]

amazing buddy its really help me my mca projects thanks a lot buddy.

[@snehagh9734]

Hey Adarsh can you please drop cascade files of right ear and left ear please

[@SomethingSpiritual]

installing error 1 while doing pip install opencv-python please guide for opencv installation

[@AdarshMenon]

please post your exact error

[@nawaab9275]

how can we display the name along with the rectangle box around the face

[@AdarshMenon]

there is a method cv2.putText to write text on the image - you can also check my face recognition video, where I did that

[@vinsmokearifka]

Raspi 4 camera use to face detection so slow & little bit dark. How to improve camera quality?

[@siscart_nilanisha]

Hello! Need some help regarding the text editor and terminal used

[@deepanshubazzad2682]

is there any option that we can classify strangers and me

[@pankajjoshi4206]

How to detect two or more faces coming towards camera. Thankyou for your video

[@JalalKhan-we1th]

Wow simply amazing, hats off to you😍

[@SatyaYinakonda]

Hi sir it shows an error cv2 has no attribute wait key can u solve this sir???

[@flodyto]

Gracias por tu video. Octubre de 2024 y funciona perfecto. (Si necesitan activar la camara web externa solo deben modificar esto "cap = cv2.VideoCapture(1)")

[@saurabh-ny8cn]

If we want to recognize faces with names then what we can do ? Means it can able to detect face. Then what ?

[@AdarshMenon]

This is only to detect faces. To recognize them - kzbin.info/www/bejne/b2magqeBhb9ghpI

[@saurabh-ny8cn]

@@AdarshMenon I watched that video but I am saying that if a moving person comes infront of camera. Then how we can do that in real time??

[@AdarshMenon]

the face recognition library can help you do that - github.com/ageitgey/face_recognition

[@sushmithasanthosh8938]

Can you make an emotion detector

[@ib2sthok127]

How can i save the detected face once if the same same detect again

[@zuriuszu]

How can the image be enlarged so both neck and head could be visible?

[@jayant9151]

Is it possible to add a sticker over face instead of a box o

[@AdarshMenon]

yes you can use opencv to draw an image instead of the box

[@likhithagoberu1304]

Traceback (most recent call last): File "C:/face recognition/detectfacevideo.py", line 19, in faces = face_cascade.detectMultiScale(gray, 1.1, 4) cv2.error: OpenCV(4.5.2) C:\Users unneradmin\AppData\Local\Temp\pip-req-build-vi271kac\opencv\modules\objdetect\src\cascadedetect.cpp:1689: error: (-215:Assertion failed) !empty() in function 'cv::CascadeClassifier::detectMultiScale' iam having this error how can i solve it..

[@ammarammarammarammarammar]

try again but make sure you webcam wasnt use that time work for me

[@akshaykadam3811]

That's Very Nice 👍👍............. You have any report of this project which gives details information about this project.

[@AmeerHamza-uu1gc]

Good bro Also made video on face MASK detection. Thanks

[@deki90to]

How to show people names with rectangle? I know to do with pictures, but donno with videos

[@AdarshMenon]

it is the same code you use with pictures, just put it inside the loop of the video. Videos are made up of frames which are images, all functions applied to images can be applied to videos as well

[@deki90to]

@@AdarshMenon Don't know how to do that. Can you write simple example here in comment?

[@AdarshMenon]

www.geeksforgeeks.org/python-opencv-write-text-on-video/#:~:text=cv2.,also%20it's%20color%20and%20thickness.

[@deki90to]

@@AdarshMenon There is no code I need, so you don't know how to do ir or?

[@krajeshwari4914]

Front end and back end of this topic is?

[@Daniel-qo9uv]

Hi I did: pip3 install opencv-python but I get an error with pycharm regarding open cv2 : ModuleNotFoundError: No module named 'cv2' How to fix it?

[@AdarshMenon]

Maybe you are on another version of python ? if you are using pip3, then make sure you call the script with python3

[@HOBBY-MASTER]

thank you , this was my first face detection project , awesome explanation

[@deepakdadlani9284]

hey...i need your help please reply.. can you tell me how can i detect the face of dog and cat and their emotions ...in python..please let me know if you know anything about it ..please help!

[@kakulapatisunandini8429]

Hi... im working with upperbody detection, this is not working with the detection of upper-body. can u plz help me out to get a frame over the upperbody recognition

[@MohitSaini-zc5zi]

Good job. Your code is still working.

[@sejalshinde209]

Which ide you have used?

[@ritvikshetty9834]

Bro..can i run this in jupyter-notebook?

[@nishanisha1266]

What if we need to detect a photo which is in a particular drive

[@AdarshMenon]

In the video at 1:30, line number 5 simply change the path of your file. For example if your file is C:/pictures/test.jpg, you can change that line to cv2.imread('C:/pictures/test.jpg')

[@nishanisha1266]

@@AdarshMenon thank you for replying

[@nishanisha1266]

@@AdarshMenon I have a doubt could you pls help me out...how can I reach you!!pls a small help

[@AdarshMenon]

[e-mail]

[@nishanisha1266]

@@AdarshMenon I mailed!!pls checkout

[@obobiacisej]

What platform are you running the code in please? As I'm having trouble running it in Google Colab

[@MertAliBarlas]

Hi I'm getting this error: C:\Users\pc\AppData\Local\Programs\Python\Python38-32\python.exe: can't open file 'test2.py': [Errno 2] No such file or directory I'm try to solve but I can't solve it, can you help me ? @Adarsh Menon

[@AdarshMenon]

you need to be inside the directory where you saved your file 'test2.py'. Use chdir command in windows terminal to change directory

[@MertAliBarlas]

@@AdarshMenon Thanks but ı already solved, thx for help

[@spjcovers1204]

Can we add some time limit for the camera so that the camera turns off automatically and we don't have to press the ESC button ???

[@AdarshMenon]

inside the while loop you could add a delay of say 100ms. Then you can keep a counter to count the number of times it ran (or maybe use a for loop). So now when this counter reaches 100 then you know that 10 seconds have passed

[@OT-oi8kl]

This was hella easy to follow, thank you!

[@gumernus]

how to change camera frame rate?

[@sonusulakshana5153]

can u provide numbering for how many faces detected in an image or video pls (eg: in an image 4 numbers are present like this)

[@AdarshMenon]

you can simply count the faces list, or add a counter in the for loop

[@sonusulakshana5153]

@@AdarshMenon i got it by adding two lines in the program import cv2 # Load the cascade face_cascade = cv2.CascadeClassifier('haarcascade_frontalface_default.xml') # Read the input image img = cv2.imread('test7.jpg') # Convert into grayscale gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY) # Detect faces faces = face_cascade.detectMultiScale(gray, 1.1, 4) # Draw rectangle around the faces for (x, y, w, h) in faces: cv2.rectangle(img, (x, y), (x + w, y + h), (255, 0, 0), 2) cv2.rectangle(img, ((0,img.shape[0] -25)),(270, img.shape[0]), (255,255,255), -1) cv2.putText(img, "Number of faces detected: " + str(faces.shape[0]), (0,img.shape[0] -10), cv2.FONT_HERSHEY_TRIPLEX, 0.5, (0,0,0), 1) # Display the output cv2.imshow('img', img) cv2.waitKey()

[@sonusulakshana5153]

for different images i got output

[@sonusulakshana5153]

what was the given image in that program it was not given numbering but for another image it given the output

[@sonusulakshana5153]

With numbering

[@roku1892]

Nice video, because : -Indian tutorial -Cursed audio -Machine backsound

[@andreidamean248]

what terminal should i use the $ comand isn't recognised anywhere i tried

[@lakshmiam19]

how to save all the detected faces(not image) ?

[@AdarshMenon]

you can try cv2.imwrite("face.jpg", img[y:y+h, x:x+w]) - here you are simply using the coordinates of faces to extract the face area from the image and then save it

[@leon81446]

I'm getting this error please help face_cascade = cv2.CascadeClassifier('haarcascade_frontalface_default.xml') AttributeError: module 'cv2' has no attribute 'CascadeClassifier'

[@AdarshMenon]

Maybe your haar cascade file did not load properly. Check if you donwloaded it in the same directory as your code. Maybe this will help - answers.opencv.org/question/52340/opencv-error-assertion-failed-empty-in-detectmultiscale/

[@leon81446]

@@AdarshMenon Thank you for replying brother! Actually the problem was w/ the version of OpenCV. It wasn't compatible with the python version installed on my PC

[@AtenTetsu]

Hi! Can I use this program with Raspberry Pi ? Thanks

[@sathiyamoorthy3757]

bro what python compiler are you working on

[@ouranosTheos]

What is the best way to train a image classifier

[@AdarshMenon]

Using CNNs

[@dumbtex6107]

use hog if ur cpu only cnn slow

[@abhicruz1668]

i wrote the exact code but i there is not rectangle formation for the detection of faces

[@pankajjoshi8292]

Liked and subscribed. One question. I want to this with 10 diff ip cams not just one laptop camera. Pls tell how to do

[@AdarshMenon]

you can definitely do it with 2 or even 3 i guess, but 10 might be a bit too much on your computer, unless you have a really powerful machine. In the line cv2.VideCapture(cam_no) - for each camera you need to write this like, where cam_no = 0, 1, 2.. no, of cameras. ref - stackoverflow.com/questions/29664399/capturing-video-from-two-cameras-in-opencv-at-once

[@blackjoni82]

module cv2 has no CascadeClassifier... someone help please

[@AdarshMenon]

Make sure you have run pip install opencv-python

[@blackjoni82]

@@AdarshMenon okay thanks bro,now, how to show the Video larger?

[@shafiquesayed2673]

In web cam capture it is not showing rectangle on more than 1 face what should i do

[@AdarshMenon]

This will help you stackoverflow.com/questions/33546356/how-to-detect-multiple-faces-in-opencv

[@nitishhdas]

Why u have not given credits to sentdex?

[@suryanshusaxena2082]

Hello sir I am getting this error: error: OpenCV(4.5.5) D:\a\opencv-python\opencv-python\opencv\modules\imgproc\src\color.cpp:182: error: (-215:Assertion failed) !_src.empty() in function 'cv::cvtColor' Please tell me how to resolve it

[@raviteja843]

Same error sir can you help me if you know how to resolve it

[@hurraykoookie21]

Please help me same error

[@ruthvikrao8631]

can you print the number of squares detected as faces?

[@AdarshMenon]

yes each iteration in the for loop corresponds to a square

[@yegenderkumar__developer__8367]

Please tell me your theme name. I am searching it since 5 years but did not know it's name

[@passion002]

Getting an error on line 7 saying src.empty() in function cv::cvtColor

[@Tecky_girl]

How to install pip in sublime text

[@AdarshMenon]

you need to install python on your computer. Sublime text is a text editor used to type and edit the code. phoenixnap.com/kb/how-to-install-python-3-windows

[@sarthakagrawal8460]

great video i founded on youtube thanks a lot bro. I am facing some error in code can u help me with that

[@koushikguptabonthala2429]

Hello. For detecting faces from images and detecting images from webcam do we need to build two different models

[@valibabushaik5073]

Everything is Awesome.... Tnq bro

[@mertceylan2080]

thanks man, beneficial video for beginners

[@pratikdhule2579]

bro how to close this application it opens again when i close it,, i am running this in anaconda... any key to stop this?

[@PiyankaYadav]

Sir ...can u help me in my face detection project... I'm stuck ...how I add img ...it give me error that img file is not in appropriate position...

[@soseikiharagatatsu7859]

it didn't work in my sublime software because there's no run button but it run on idle python

[@WillMartinez1990-x6m]

How would you send this to someone and see their webcam

[@dpreek]

sir thank your for this video. i tried this. but i have a error.how can i fix it? Traceback (most recent call last): File "C:\Users\amali\Desktop\Face_Detection\test1.py", line 13, in faces = face_casCade.detectMultiScale(gray, 1.3, 5) NameError: name 'face_casCade' is not defined

[@AdarshMenon]

looks like the variable is not defined, python is case sensitive. I think it should be face_cascade if you have used my code. Or else make sure the cascade file is in the same folder where the code is

[@RinRoya]

Can you tell me this error error: Unknown C++ exception from OpenCV code in this code _, img = cap.read()

[@soseikiharagatatsu7859]

how did that terminal suddenly pop up I can't run the code

[@betsythomas5971]

Good work Adarsh..Saved a lot of time!!

[@AdarshMenon]

Glad to hear that !

[@ramsy-sploit22]

i want to cheek if the face is my face then it wil give me a signe that the face is my you know what i'm saying

[@circuittricks5144]

Very great video sir, please tell me how I save XML file in python project

[@lvmeghana130]

hey help plz getting errors like Module 'cv2' has no 'CascadeClassifier' member..,Module 'cv2' has no 'VideoCapture' member,..Module 'cv2' has no 'cvtColor' member...,Module 'cv2' has no 'COLOR_BGR2GRAY' member...,Module 'cv2' has no 'rectangle' member....,Module 'cv2' has no 'waitKey' member

[@manishsharma2211]

Please install cv2 first Pip install opencv-python

[@mohanjangam3034]

I want this project report bro ..plz