neha01 / facerecognition

Face Recognition using OpenCV in Python

Hello Anon I'm Neha, Working as a Backend Engineer

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facerecognition's Issues

how to train images present in DataBase?

how to train images present in DataBase?

Instead of training photos from a folder, how can we train images present in data base..?

Opencv version

Which version of opencv should I install ???

Why do we have resizedimagesfolder here ?

This is not an issue but curious to know why do we have resizedimages folder. Code worked fine without that folder too.
But if I have to use this code on my own dataset, can I resize it first and run the trainer to save time ? Will the accuracy be same ?

Is there a typo in line 9 in tester.py

faces_detected,gray_img=fr.faceDetection(test_img)

faces_detected.gray_img=fr.faceDetection(test_img)

Error on OpenCV4.1.1

cv2.error: OpenCV(4.1.1) /home/pi/opencv_contrib/modules/face/src/lbph_faces.cpp:365: error: (-210:Unsupported format or combination of formats) Labels must be given as integer (CV_32SC1). Expected 4, but was 6. in function 'train'.
Can you please help me ?

AttributeError

module 'cv2.cv2' has no attribute 'face'

in line---> "face_recognizer=cv2.face.LBPHFaceRecognizer_create()"

opencv error

File "tester.py", line 9, in
faces_detected,gray_img=fr.faceDetection(test_img)
File "C:\Users\sunil\Desktop\ml_project\me\face_recognition.py", line 6, in faceDetection
gray_img=cv2.cvtColor(test_img,cv2.COLOR_BGR2GRAY)
cv2.error: OpenCV(4.1.0) C:\projects\opencv-python\opencv\modules\imgproc\src\color.cpp:182: error: (-215:Assertion failed) !_src.empty() in function 'cv::cvtColor'

this is the error i m getting.Can you tell me what to do in that

Haar cascade

Can you define Haar cascades?

How to train Identify for more people?

How to train like, giving ID of person and getting dataset and training them.
Can we store, trained data of different people in same .yml file ?

Error in printing faces_detected

I am having this error on printing faces_detected after using faceDetection module -

OpenCV(3.4.2) c:\miniconda3\conda-bld\opencv-suite_1534379934306\work\modules\imgproc\src\color.hpp:253: error: (-215:Assertion failed) VScn::contains(scn) && VDcn::contains(dcn) && VDepth::contains(depth) in function 'cv::CvtHelper<struct cv::Set<3,4,-1>,struct cv::Set<1,-1,-1>,struct cv::Set<0,2,5>,2>::CvtHelper'

in the line -
gray_img = cv2.cvtColor(test_img,cv2.COLOR_BGR2GRAY)

cv::CascadeClassifier::detectMultiScale

Traceback (most recent call last):
File "C:\Users\DELL\Desktop\openCV.py", line 18, in
faces=face_cascade.detectMultiScale(gray_img,scaleFactor=1.32,minNeighbors=5)
cv2.error: OpenCV(4.1.0) C:\projects\opencv-python\opencv\modules\objdetect\src\cascadedetect.cpp:1658: error: (-215:Assertion failed) !empty() in function 'cv::CascadeClassifier::detectMultiScale'

I don't know what to do in this phase!

opencv error

File "tester.py", line 9, in
faces_detected,gray_img=fr.faceDetection(test_img)
File "C:\Users\sunil\Desktop\ml_project\me\face_recognition.py", line 6, in faceDetection
gray_img=cv2.cvtColor(test_img,cv2.COLOR_BGR2GRAY)
cv2.error: OpenCV(4.1.0) C:\projects\opencv-python\opencv\modules\imgproc\src\color.cpp:182: error: (-215:Assertion failed) !_src.empty() in function 'cv::cvtColor'

this is the error i m getting.Can you tell me what to do in that