Questions - OpenCV Q&A Forum

311

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2018-01-07 14:03:46 -0600 datguy.dev

[Noobie] Do I need to complie OpenCV to do anything?...

2k

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no

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no

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2018-01-18 23:24:47 -0600 hw_gn

(Python) ASSERT: “false” in file qasciikey.cpp [closed]

python
Haar

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no

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no

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2018-01-21 01:50:13 -0600 whiskeyz

Real-time Shape Identification

838

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1

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no

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

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

1k

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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 "

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2018-02-28 04:15:46 -0600 berak

How to use a dpm cascade model xml file in a Python script?

212

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2018-03-03 11:37:57 -0600 Jad

error while visualizing the cascade stage features

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2018-03-16 01:57:39 -0600 Joshitha

Bad argument in function cvReleaseData, how to fix the error?

834

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2018-03-06 17:22:10 -0600 nikifaets

Segmentation fault (core dumped) when using opencv_createsamples

367

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2018-03-09 08:55:21 -0600 StevenPuttemans

Cascade classier DetectMultiScale()

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2018-04-05 00:19:04 -0600 vishwaprakash

Best Cascade for detecting Mororcycles (side views) [closed]

444

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2018-04-13 11:02:00 -0600 Marko5280

Solved Need help running sample script for Cascade Classifier.

555

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2018-04-27 02:07:27 -0600 berak

Training cuda::CascadeClassifier

738

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

Problem with Haar cascade

Haar
cascade

5k

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2018-07-03 06:28:58 -0600 Nigeltve

'opencv_createsamples' is not recognized as an internal or external command

3k

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1

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2018-07-13 06:38:46 -0600 ioemmano

Building detection in satellite imagery

4k

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2

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no

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2018-09-07 07:08:57 -0600 m93c

OpenCV.js unable to load haar cascades [closed]

918

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2018-09-12 06:54:18 -0600 m93c

OpenCV.js in Web Worker problem

196

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2018-09-26 13:09:17 -0600 Ryan Lewkowicz

Simple logo haar file I created causes tons of false positives.

683

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2018-10-24 08:27:50 -0600 berak

How large should the dataset be when using cv2 recognizers (FisherFace, LBPH)? 10 images? 20? 100?

903

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2018-12-10 22:55:26 -0600 berak

How to use CascadeClassifier::create in OpenCV 4.0?

195

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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

171

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2019-01-28 16:26:02 -0600 Michał Kowalczyk

1 image - 10 haar classifiers - process image once [closed]

554

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2020-05-22 08:27:02 -0600 supra56

[SOLVED]Determining number of Traffic Light Pattern after Detecting Traffic Light [closed]

1k

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2020-05-17 02:41:26 -0600 berak

Best Face Detection Trained Data for Haar Cascade Classifier?

1k

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no

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no

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2020-06-24 23:05:05 -0600 neel19

I am getting this error: Invalid HAAR feature (expected: 'rw.r.x + rw.r.width <= W'), where > 'rw.r.x + rw.r.width' is 22 > must be less than or equal to > 'W' is 16

321

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2020-09-01 09:38:52 -0600 berak

Haar Cascade or ...? OpenCV detection

161

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no

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-1

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2017-08-08 11:45:16 -0600 sturkmen

function thresholding

211

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no

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-1

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2017-08-16 02:36:46 -0600 bubbely

Please help me with HEAD cascades [closed]

opencv
Haar

135

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no

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-1

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2017-09-29 06:43:19 -0600 andi

155 questions

[Noobie] Do I need to complie OpenCV to do anything?...

(Python) ASSERT: “false” in file qasciikey.cpp [closed]

Real-time Shape Identification

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 "

How to use a dpm cascade model xml file in a Python script?

error while visualizing the cascade stage features

Bad argument in function cvReleaseData, how to fix the error?

Segmentation fault (core dumped) when using opencv_createsamples

Cascade classier DetectMultiScale()

Best Cascade for detecting Mororcycles (side views) [closed]

Solved Need help running sample script for Cascade Classifier.

Training cuda::CascadeClassifier

Problem with Haar cascade

'opencv_createsamples' is not recognized as an internal or external command

Building detection in satellite imagery

OpenCV.js unable to load haar cascades [closed]

OpenCV.js in Web Worker problem

Simple logo haar file I created causes tons of false positives.

How large should the dataset be when using cv2 recognizers (FisherFace, LBPH)? 10 images? 20? 100?

How to use CascadeClassifier::create in OpenCV 4.0?

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

1 image - 10 haar classifiers - process image once [closed]

[SOLVED]Determining number of Traffic Light Pattern after Detecting Traffic Light [closed]

Best Face Detection Trained Data for Haar Cascade Classifier?

I am getting this error: Invalid HAAR feature (expected: 'rw.r.x + rw.r.width <= W'), where > 'rw.r.x + rw.r.width' is 22 > must be less than or equal to > 'W' is 16

Haar Cascade or ...? OpenCV detection

function thresholding

Please help me with HEAD cascades [closed]

Detect "marbleesque" Surface Pattern

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