Questions - OpenCV Q&A Forum

356

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no

answers

-2

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2018-11-17 13:14:10 -0600 Proappdev

FaceRecognition with OpenCv, NDK and Android studio failed! [closed]

opencv

526

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1

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no

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2018-12-02 20:07:50 -0600 blues

cuda detectMultiScale gets inconsistent result on same image?

5k

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11

answers

18

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2018-12-04 04:49:09 -0600 Akhil Patel

NO QUESTION - Suggestions concerning this question & answer area

4k

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1

answer

1

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2018-12-04 20:03:20 -0600 berak

why it cannot detect some profile face?

212

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1

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no

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2018-12-14 04:18:51 -0600 berak

opencv_createsamples mixed mode

1k

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no

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no

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2018-12-15 13:04:42 -0600 Abra

Fire and Smoke Detection use Color or Haar [closed]

firedetection

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no

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no

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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

2k

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1

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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

285

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1

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no

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2019-01-16 04:55:03 -0600 StevenPuttemans

What algorithms are best used for recognizing objects in the street from a video stream

1k

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1

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no

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2019-01-16 07:28:31 -0600 berak

OpenCV 3.4.1 Cascade Classifier HOG

3k

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2

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no

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2019-02-05 18:02:51 -0600 sturkmen

Barcode/label detection

460

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1

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2019-02-21 04:17:13 -0600 berak

Can we create our own haar-cascade file for multi-view face detection

271

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no

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

Need help with training cascade classifier

807

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1

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2019-03-03 03:44:29 -0600 LBerger

How do I evaluate the performance of Haar Cascade in test data ? How do we classify the set of images in different categories using Haar Cascade, just like CNN does?

911

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2019-03-07 09:20:15 -0600 UnluckyTicket

OpenCV Annotation Tool for Mac?

369

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1

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no

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2019-03-20 01:48:30 -0600 berak

image questions in regards to training cascade classifier

659

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2019-04-08 09:01:00 -0600 jonasiyou

Haar Cascade for fingers [closed]

164

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no

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2019-05-07 04:20:08 -0600 lovehell

Stage threshold in cascade training

cascadeclassifier

649

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1

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no

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2019-08-15 12:49:35 -0600 berak

cmake build error for 'trancascade' app

traincascade

439

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1

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no

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2019-08-15 14:07:44 -0600 berak

Avoid retraining a model when executing a program?

436

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

Not able to identify the images correctly

693

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1

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2019-08-26 13:31:24 -0600 berak

How the HoG features work with AdaBoost in openCV?

240

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

how does opencv handle rectangles feature of haar cascade classifier?

947

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2019-09-19 07:10:02 -0600 dkprog

Is Haar cascade classifier suitable for bottle label detection?

540

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2

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no

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2019-10-08 09:21:08 -0600 nicolasabril

Software synthesizer interface detection (lines inside of circles)

205

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no

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no

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2019-10-13 15:21:50 -0600 jpmoraga

Issue with my train cascade

traincascade

130

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1

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no

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2019-10-19 05:32:35 -0600 berak

where is cvCreateTrainingSamples() function?

createsamples.cpp

355

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1

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no

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2019-11-24 12:12:33 -0600 berak

cascade training... help!

traincascade

519

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no

answers

2

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2019-11-28 10:27:13 -0600 Elis4

How to use dnn as a detector for facemark ?

631

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1

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no

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2019-11-28 11:04:17 -0600 holger

728 questions

FaceRecognition with OpenCv, NDK and Android studio failed! [closed]

cuda detectMultiScale gets inconsistent result on same image?

NO QUESTION - Suggestions concerning this question & answer area

why it cannot detect some profile face?

opencv_createsamples mixed mode

Fire and Smoke Detection use Color or Haar [closed]

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

What algorithms are best used for recognizing objects in the street from a video stream

OpenCV 3.4.1 Cascade Classifier HOG

Barcode/label detection

Can we create our own haar-cascade file for multi-view face detection

Need help with training cascade classifier

How do I evaluate the performance of Haar Cascade in test data ? How do we classify the set of images in different categories using Haar Cascade, just like CNN does?

OpenCV Annotation Tool for Mac?

image questions in regards to training cascade classifier

Haar Cascade for fingers [closed]

Stage threshold in cascade training

cmake build error for 'trancascade' app

Avoid retraining a model when executing a program?

Not able to identify the images correctly

How the HoG features work with AdaBoost in openCV?

how does opencv handle rectangles feature of haar cascade classifier?

Is Haar cascade classifier suitable for bottle label detection?

Software synthesizer interface detection (lines inside of circles)

Issue with my train cascade

where is cvCreateTrainingSamples() function?

cascade training... help!

How to use dnn as a detector for facemark ?

How to do hard negative mining for cascade classifier?

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