Questions - OpenCV Q&A Forum

403

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1

answer

no

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2020-08-12 10:05:13 -0600 berak

“Incremental” [face] training

2k

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1

answer

4

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2012-07-04 18:12:54 -0600 icedecker

Performance evaluation for detection

5k

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1

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no

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2015-01-06 06:29:35 -0600 StevenPuttemans

Haar Training: error (-215)_img.row * _img.cols == vecSize in function get

opencvtraincascade

482

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1

answer

no

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2017-04-14 07:42:06 -0600 StevenPuttemans

Order of sampling negative examples

216

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1

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no

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

Need help pls ! My haartraining is blocked at stage 11

254

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1

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no

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2016-08-08 13:06:13 -0600 marcosbontempo

General People Cascade Classifier

355

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1

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no

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2016-03-03 01:44:34 -0600 Pulkit

Matlab haar cascade opencv android compatibility

398

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1

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no

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2013-06-22 11:13:13 -0600 AgentCain

opencv_traincascade old format problem

Haar
cascade

361

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1

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no

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2015-04-03 07:18:26 -0600 Gino Strato

question about apps/traincascade/imagestorage.cpp

3k

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1

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3

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2015-03-03 02:53:19 -0600 StevenPuttemans

Visualizing learned features from Haar cascade classifier

491

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1

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no

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2015-05-26 12:38:21 -0600 AspireStone3

How to traincascade LBP?

9k

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1

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no

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2015-09-22 01:36:50 -0600 albertofernandez

How to use OpenCV to find if a person is wearing a hat or glasses?

703

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1

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no

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2016-06-02 12:59:29 -0600 xEden

opencv_traincascade.exe crashes while at NEG current samples

1k

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1

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no

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2015-09-11 05:04:53 -0600 StevenPuttemans

traincascade error - _cascadeDirName or _bgfileName or _vecFileName is NULL

traincascade

418

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1

answer

no

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2016-08-02 10:58:31 -0600 shoemakerlevy9

Haar Cascade instability

156

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1

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no

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2016-10-07 03:48:13 -0600 StevenPuttemans

opencv_traincascade always halts on stage 4.i

228

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1

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no

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2016-06-22 11:02:19 -0600 danaro

training stage-1 error

642

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1

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no

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2013-04-20 07:03:57 -0600 Hasni

how to get all files required for haar training of my object ?

1k

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1

answer

1

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2012-12-14 07:47:50 -0600 ubehagelig

Tips on how to build opencv 2.4.3 (VC10)

1k

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1

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no

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2013-04-01 06:40:25 -0600 Guanta

Which is the best way to detect object in this case?

6k

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1

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no

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2013-07-19 06:39:24 -0600 StevenPuttemans

Getting Error "Image reader can not be created from -vec vector.vec and -bg bkg.dat"

6k

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1

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no

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2013-09-18 11:50:48 -0600 hughht5

What is a .vec file?

1k

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1

answer

1

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2015-03-16 21:16:53 -0600 ragnarok12

Convert new format haarcasccade xml file to old format

haartraining

2k

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1

answer

2

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2013-08-01 07:49:27 -0600 Guido

Detecting multiple instances of same object with Keypoint-Matching approach

408

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1

answer

no

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2016-08-20 12:02:20 -0600 mattm401

PR Curve for Cascade w/ detectMultiScale3: Never Completes

880

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1

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no

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2013-11-20 04:02:47 -0600 StevenPuttemans

after make -w 30 -h 30 opencv_createsamples run very very slowly

640

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1

answer

1

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2013-03-25 02:59:12 -0600 thdrksdfthmn

continue traincascade after computer crash

4k

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1

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3

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2013-03-22 12:20:11 -0600 StevenPuttemans

Question about calculation of positive and negative examples for training a LBP classifier and not getting stuck because of a wrong number of nPOS and nNEG.

740

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1

answer

1

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2015-03-02 10:17:55 -0600 verified.human

Are cascades the best way to detect different mouth shapes on photos?

677

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1

answer

no

votes

2016-10-13 05:31:46 -0600 prala123

Cascade classifier detect multi scale always returns nothing.

opencv_traincascacde

728 questions

“Incremental” [face] training

Performance evaluation for detection

Haar Training: error (-215)_img.row * _img.cols == vecSize in function get

Order of sampling negative examples

Need help pls ! My haartraining is blocked at stage 11

General People Cascade Classifier

Matlab haar cascade opencv android compatibility

opencv_traincascade old format problem

question about apps/traincascade/imagestorage.cpp

Visualizing learned features from Haar cascade classifier

How to traincascade LBP?

How to use OpenCV to find if a person is wearing a hat or glasses?

opencv_traincascade.exe crashes while at NEG current samples

traincascade error - _cascadeDirName or _bgfileName or _vecFileName is NULL

Haar Cascade instability

opencv_traincascade always halts on stage 4.i

training stage-1 error

how to get all files required for haar training of my object ?

Tips on how to build opencv 2.4.3 (VC10)

Which is the best way to detect object in this case?

Getting Error "Image reader can not be created from -vec vector.vec and -bg bkg.dat"

What is a .vec file?

Convert new format haarcasccade xml file to old format

Detecting multiple instances of same object with Keypoint-Matching approach

PR Curve for Cascade w/ detectMultiScale3: Never Completes

after make -w 30 -h 30 opencv_createsamples run very very slowly

continue traincascade after computer crash

Question about calculation of positive and negative examples for training a LBP classifier and not getting stuck because of a wrong number of nPOS and nNEG.

Are cascades the best way to detect different mouth shapes on photos?

Cascade classifier detect multi scale always returns nothing.

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