recognizer.train(x_train, np.array(y_labels)) cv2.error

[devchacha]

recognizer.train(x_train, np.array(y_labels))
cv2.error: OpenCV(4.0.1) C:\projects\opencv-python\opencv_contrib\modules\face\src\lbph_faces.cpp:362: error: (-210:Unsupported format or combination of formats) Empty training data was given. You'll need more than one sample to learn a model. in function 'cv::face::LBPH::train'

How can I fix it?

[Rohitshrimal]

@devchacha
it worked for me when i removed the "scaleFactor=1.5" from the below line .
faces = face_cascade.detectMultiScale(image_array, scaleFactor=1.5, minNeighbors=5)

[ganeshkarthik77]

recognizer.train(x_train, np.array(y_labels))
cv2.error: OpenCV(4.0.1) C:\projects\opencv-python\opencv_contrib\modules\face\src\lbph_faces.cpp:362: error: (-210:Unsupported format or combination of formats) Empty training data was given. You'll need more than one sample to learn a model. in function 'cv::face::LBPH::train'

How can I fix it

[Abderrahmen33]

same problem

[georgiakais]

@ganeshkarthik77 and @Abderrahmen33
hello guys..i had the same problem and it worked with this: recognition=cv2.face.LBPHFaceRecognizer_create()

p.s: in the file face-train
change the recognicer to recognition.

[brysonnoble]

Neither of these solutions worked for me. I will try to find another solution but if anyone found another fix, please help.

Edit: After further testing, I have found that large images will not work. I do not know the limit, but keeping each image under 200kb seems to work.

[Abderrahmen33]

i change the plan in using library face_recognition but problem in cmake always we find problem lol but i think with importing face_recognition its easy

[Abderrahmen33]

@georgiakais thnks alot anyway

[AndroidUnissula]

cv2.error: OpenCV(4.1.2) C:\projects\opencv-python\opencv_contrib\modules\face\src\lbph_faces.cpp:362: error: (-210:Unsupported format or combination of formats) Empty training data was given. You'll need more than one sample to learn a model. in function 'cv::face::LBPH::train'

How can I fix it

[ZeusThe4th]

Hey Abderrahmen33. I see from the thread that you managed to solve the error. Mind helping? same error.

[gusck1997]

Same error, how can i fix it?

[piyush-creator]

Use more than one folder of images

[kajal86]

Traceback (most recent call last):
File "c:/Users/Kajal/Visual studio/Automated-Attendance-System-By-Real-Time-Face-Reccognition-master/scripts/train.py", line 54, in
recognizer.train(faces,np.array(faceid))
cv2.error: OpenCV(4.2.0) C:\projects\opencv-python\opencv_contrib\modules\face\src\lbph_faces.cpp:362: error: (-210:Unsupported format or combination of formats) Empty training data was given. You'll need more than one sample to learn a model. in function 'cv::face::LBPH::train'

having same error tried all the solutions above. plz help

[Abderrahmen33]

https://www.youtube.com/watch?v=TOUMUzVy24A this a video that i made [image: Mailtrack] <https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality5&> Sender notified by Mailtrack <https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality5&> 12/06/20 à 12:04:41

…

On Fri, Jun 12, 2020 at 11:46 AM kajal86 ***@***.***> wrote: Traceback (most recent call last): File "c:/Users/Kajal/Visual studio/Automated-Attendance-System-By-Real-Time-Face-Reccognition-master/scripts/train.py", line 54, in recognizer.train(faces,np.array(faceid)) cv2.error: OpenCV(4.2.0) C:\projects\opencv-python\opencv_contrib\modules\face\src\lbph_faces.cpp:362: error: (-210:Unsupported format or combination of formats) Empty training data was given. You'll need more than one sample to learn a model. in function 'cv::face::LBPH::train' — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#10 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AIR5OQMRUMJ6ZFUUB7BGZHDRWH2ONANCNFSM4HFOTZ4A> .

[gauravtak077]

Abderrahmen plzzz help me i have save code as u but still i face this problem TypeError: Expected Ptrcv::UMat for argument 'labels'

[Abderrahmen33]

gauravtak077 contact me in may email
abderrahmen.melliti@esprit.tn