Face and Eye Detection from Images using HAAR Cascade Classifier

Here is a detailed explanation about how we can detect face and eyes from images using OpenCV.
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Below are the other playlist
Machine learning: goo.gl/XhHdCd
Deep Learning : goo.gl/iwek57
Statistics in ML :goo.gl/x7mkUH
Feature Engineering:goo.gl/6wiaGt
Data Preprocessing Techniques: goo.gl/YfC9Kc

[@omkarrane5867]

Good and appreciable work sir!!!.someday if possible sir please make a video on how to train HAAR cascade classifier XML files for the detection of a particular(example) object.

[@YassirElayadi]

is there any detailed ressource about Haar-cascade algorithm, I want to implement it from scratch in Python ?

[@subramanyak6187]

Yeah I am also!! Did you find out how to do that?

[@MithileshDSCS]

Hey krish could you please explain what is opencv used for and what are cnn's used for? Arent both for image classification?

[@Core_Programming]

THANK YOU FOR THIS PLAYLIST :)

[@DeepakKumar-uz4xy]

what is the use of 1.3 and 5 in face variable that contain as an argument

[@algorithmsguide5076]

@Krish Naik Can you explain why we are using 1.3 and 5 ? More people having the same question..

[@algorithmsguide5076]

@Deepak 1.3 is scale factor and 5 is min neighbors,.. please look for github repo.. krish explained.

[@ijeffking]

Thank you Krish. Is this the start of the CV paylist that you had mentioned earlier ?

[@krishnaik06]

Hey Jeff,please check my playlist I have made a playlist on computer Vision Tutorial

[@Sagar_Tachtode_777]

your post very valuable knowledge... Thank you!!!!

[@ishaangupta2830]

why we converted the image to gray?

[@saurabhkatiyar4988]

why is it unable to recognize more than 3 faces in a group picture?

[@louerleseigneur4532]

Thanks Krish

[@sethvishu]

when i am using imread function i get this error but 2/10 times it runs the same code . what the problem ? pic = cv2.imread ("‪C:\\Users\\91920\\Pictures\\pic1.PNG",0) print(type(pic)) output - cv2.imshow("image",pic) cv2.waitKey(0) cv2.destroyAllWindows() output - error: OpenCV(4.3.0) ..\modules\highgui\src\window.cpp:376: error: (-215:Assertion failed) size.width>0 && size.height>0 in function 'cv::imshow'

[@nanigadupudi880]

Great video bro , but i want to iterate loop and save eye features (pixels) using haarcascade classifier by using this i'm able to detect for one image but i'm not able to iterate loop but it showing no image found , is their any solution please let me know

[@suvigyabhardwaj9714]

hi sir, that eye classifier file is creating ruckus in my system. everytime i run the code the face gets detected but as i press any key or enter key for eye detection the kernel dies, plz help me sir

[@rohitjyoti9071]

Nice video

[@Sagar_Tachtode_777]

What to do i want to detect PAN Card and Crop it ??

[@subbareddy7008]

where we get the data set please share the link if u have

[@krishnamitabanerjee4351]

Can I detect pipe leakage using Haar Cascade sir?

[@alinajoseph7025]

Is Haar-cascade only for face?

[@chiragagrawal7104]

this haar cascade is not detecting every faces and eyes

[@MrAvadhanula]

error: OpenCV(3.4.5) /io/opencv/modules/imgproc/src/color.cpp:181: error: (-215:Assertion failed) !_src.empty() in function 'cvtColor' sir please explain how to overcome this error (linux os)

[@alphonseinbaraj7602]

i got same error . idont know to clear that ..Please if any one knows ..please help me and refer

[@MrAvadhanula]

@@alphonseinbaraj7602 please try running it in terminal (.py) file

[@rohitborra2507]

@@alphonseinbaraj7602 same error plz help

[@priyankanagpal2207]

code returns no face found though image is loaded

[@krishnaik06]

Please try with different images.id the images are not good the face might not get recognized

[@priyankanagpal2207]

@@krishnaik06 it worked by changing values of detectMultiScale according to image.