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222 questions
Tagged
829
views
1
answer
no
votes
2020-10-13 04:33:44 -0600
berak
I'm getting the following error while using OpenCV
opencv
with
python
4k
views
1
answer
no
votes
2020-07-28 06:51:26 -0600
berak
TypeError: Expected Ptr<cv::UMat> for argument 'src'
opencv
python
image-recognition
image_recognition
261
views
no
answers
no
votes
2020-07-27 18:08:39 -0600
mdaccrim97
opencv_traincascade keeps core dumping [closed]
traincascade
cascade
customClassifier
320
views
no
answers
-1
votes
2020-06-28 10:54:26 -0600
Dragonfly Robotics
OpenCV Training Custom Haar Cascade with Python 3
opencv
python
cvHaarCascadeClassi
127
views
no
answers
no
votes
2020-06-23 12:06:19 -0600
supra56
LBPHFaceRecognizer slows down processes
LBPHFaceRecognizer
processes
frames
slowrecongition
1k
views
1
answer
no
votes
2020-05-21 02:45:09 -0600
berak
Can you help me with nail detection please?
objectdetection
339
views
no
answers
no
votes
2020-04-28 17:41:28 -0600
AndrakoValle
How to train more accurate Haar Cascades?
opencvpython
haartraning
objectdetection
cascadeclassifier
computervision
356
views
no
answers
no
votes
2020-04-06 22:01:23 -0600
LearningCV
training haar cascade with single positive sample
opencv_createsamples
opencv_traincascade
460
views
2
answers
-1
votes
2020-03-29 04:56:40 -0600
ComputerVisionary
Train cascade classifier for game screenshots
cascadeclassifier
395
views
no
answers
no
votes
2020-03-10 12:59:21 -0600
dunnoguy
How to live stream to a website using cv2 library
opencv
cv2
flask
webserver
webpage
cvhaartraining
310
views
1
answer
no
votes
2019-11-24 12:12:33 -0600
berak
cascade training... help!
traincascade
492
views
1
answer
no
votes
2020-03-29 05:51:41 -0600
ComputerVisionary
Cannot detect cars
cascadeclassifier
createsamples
opencv_annotation
161
views
no
answers
no
votes
2019-09-05 13:41:55 -0600
vito95
how does opencv handle rectangles feature of haar cascade classifier?
haarcascade.xml
haarcascade
cvHaarCascadeClass
haarcascades
332
views
no
answers
no
votes
2019-08-20 07:37:10 -0600
LBerger
Not able to identify the images correctly
carDetection
objectdetection
377
views
1
answer
no
votes
2020-03-29 06:08:41 -0600
ComputerVisionary
Training Haar cascades for face detection..
haartraning
Facedetection
trainData
241
views
no
answers
no
votes
2019-03-02 02:51:47 -0600
UnluckyTicket
Need help with training cascade classifier
cascadeclassifier
training
cascadetraining
1k
views
1
answer
-2
votes
2019-01-07 11:09:29 -0600
berak
I'm trying to run a face recognition program in python using OpenCV but I'm getting the following error which I'm unable to resolve. Any help is greatly appreciated
FaceRecognizer
900
views
no
answers
no
votes
2018-12-19 08:16:51 -0600
oja
Hey guys I am doing a face recognition project using LBPHFaceRecognizer the problen is that for few images (test images) the model is recognizing and for few images it is giving this error: (-215:Assertion failed) s >= 0 in function 'cv::setSize' [closed]
FaceRecognition
254
views
no
answers
no
votes
2018-09-17 03:47:48 -0600
RUCasul
Haar Cascade training not working as intended
opencv_traincascade
cvhaartraining
453
views
no
answers
1
vote
2018-08-16 11:56:40 -0600
yoggiee
lbp cascade training to detect traffic signs [closed]
cascadeclassifier
LBP
Haar
training
opencv3.4.2
420
views
1
answer
no
votes
2018-07-24 04:09:01 -0600
StevenPuttemans
Error while opencv_traincascade
opencv
traincascade
createsample
202
views
1
answer
no
votes
2018-07-07 03:48:56 -0600
berak
how can I solve this error?
train_cascade
827
views
no
answers
no
votes
2018-05-07 12:17:49 -0600
karimbgmail
Problem with Haar cascade
Haar
cascade
1k
views
no
answers
no
votes
2018-05-03 12:06:23 -0600
RazeK
How to improve the performance of a Haar cascade classifier during training?
opencv_traincascade
cascadeclassifier
opencv_createsamples
2k
views
no
answers
-1
votes
2018-05-02 17:18:03 -0600
mssm1996
OpenCV Detecting Traffic Light green signal
object-detection
cascadeclassifier
traincascade
505
views
1
answer
no
votes
2018-05-01 05:28:04 -0600
berak
Face Prediction is invalid in Opencv Python
python
opencv
312
views
1
answer
no
votes
2018-04-19 03:39:32 -0600
StevenPuttemans
Opencv_traincascade training too fast?
opencv
traincascade
848
views
1
answer
no
votes
2018-04-19 03:47:53 -0600
StevenPuttemans
opencv traincascade on windows
copencv
opencv_traincascade
712
views
1
answer
no
votes
2018-04-16 00:35:24 -0600
kapil goyal
aborted core dumped :NEG current samples: 7250 terminate called after throwing an instance of 'std::out_of_range' what(): basic_string::substr: __pos (which is 140) > this->size() (which is 11) Aborted (core dumped)7254
opencv
cascadeclassifier
coredumped
outofrange
opencv_traincascade
399
views
no
answers
no
votes
2018-04-03 12:45:05 -0600
Philia
Detecting Brain Tumor?
image-recognition
traincascade
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5
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