Questions - OpenCV Q&A Forum

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2017-09-22 09:32:26 -0600 Negierly

OpenCV Error: Assertion failed

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2017-11-05 10:45:26 -0600 jakub.pietrzak96

opencv_traincascade too quick with bad results [closed]

218

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1

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2017-12-24 05:44:36 -0600 classic

Need help pls ! My haartraining is blocked at stage 11

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2017-11-07 18:46:43 -0600 ash.jo4444

Unable to train my own Haar Cascade [closed]

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2017-11-27 09:35:03 -0600 pww

Cascade training in OpenCV 3

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-1

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2017-11-27 23:26:45 -0600 ShayanFiroozi

Pornography/nudity Cascade training best size and parameters [closed]

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2017-12-06 02:11:37 -0600 berak

how opencv_traincascade can using GPU

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2017-12-15 11:36:55 -0600 d-e-t

Training cascade for detecting arrow signs

72

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2018-02-09 12:01:06 -0600 PabloOyarzo

HAAR Cascade Trainning recognizing few features [closed]

cascade

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2018-02-27 12:06:47 -0600 berak

Haar Classifier does not work, only one feature seems to be trained.

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1

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2018-02-28 02:39:55 -0600 saideepthik

Error while running code that uses Haar Classifier xml: "Incorrect type of self "

1k

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1

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2018-03-04 11:39:07 -0600 Joshitha

Insufficient memory in function cvAlloc, how to release memory?

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2018-04-03 12:45:05 -0600 Philia

Detecting Brain Tumor?

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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

900

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2018-04-19 03:47:53 -0600 StevenPuttemans

opencv traincascade on windows

322

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2018-04-19 03:39:32 -0600 StevenPuttemans

Opencv_traincascade training too fast?

510

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2018-05-01 05:28:04 -0600 berak

Face Prediction is invalid in Opencv Python

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2018-05-02 17:18:03 -0600 mssm1996

OpenCV Detecting Traffic Light green signal

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2018-05-03 12:06:23 -0600 RazeK

How to improve the performance of a Haar cascade classifier during training?

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2018-05-07 12:17:49 -0600 karimbgmail

Problem with Haar cascade

Haar
cascade

210

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1

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2018-07-07 03:48:56 -0600 berak

how can I solve this error?

train_cascade

426

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1

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2018-07-24 04:09:01 -0600 StevenPuttemans

Error while opencv_traincascade

465

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2018-08-16 11:56:40 -0600 yoggiee

lbp cascade training to detect traffic signs [closed]

265

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2018-09-17 03:47:48 -0600 RUCasul

Haar Cascade training not working as intended

921

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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

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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

245

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2019-03-02 02:51:47 -0600 UnluckyTicket

Need help with training cascade classifier

403

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2020-03-29 06:08:41 -0600 ComputerVisionary

Training Haar cascades for face detection..

342

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2019-08-20 07:37:10 -0600 LBerger

Not able to identify the images correctly

165

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2019-09-05 13:41:55 -0600 vito95

222 questions

OpenCV Error: Assertion failed

opencv_traincascade too quick with bad results [closed]

Need help pls ! My haartraining is blocked at stage 11

Unable to train my own Haar Cascade [closed]

Cascade training in OpenCV 3

Pornography/nudity Cascade training best size and parameters [closed]

how opencv_traincascade can using GPU

Training cascade for detecting arrow signs

HAAR Cascade Trainning recognizing few features [closed]

Haar Classifier does not work, only one feature seems to be trained.

Error while running code that uses Haar Classifier xml: "Incorrect type of self "

Insufficient memory in function cvAlloc, how to release memory?

Detecting Brain Tumor?

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 traincascade on windows

Opencv_traincascade training too fast?

Face Prediction is invalid in Opencv Python

OpenCV Detecting Traffic Light green signal

How to improve the performance of a Haar cascade classifier during training?

Problem with Haar cascade

how can I solve this error?

Error while opencv_traincascade

lbp cascade training to detect traffic signs [closed]

Haar Cascade training not working as intended

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]

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

Need help with training cascade classifier

Training Haar cascades for face detection..

Not able to identify the images correctly

how does opencv handle rectangles feature of haar cascade classifier?

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