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728 questions
Tagged
303
views
no
answers
-2
votes
2018-11-17 13:14:10 -0600
Proappdev
FaceRecognition with OpenCv, NDK and Android studio failed! [closed]
opencv
447
views
1
answer
no
votes
2018-12-02 20:07:50 -0600
blues
cuda detectMultiScale gets inconsistent result on same image?
opencv-3.4
CUDA
cascadeclassifier
4k
views
11
answers
18
votes
2018-12-04 04:49:09 -0600
Akhil Patel
NO QUESTION - Suggestions concerning this question & answer area
tips
tricks
suggestions
3k
views
1
answer
1
vote
2018-12-04 20:03:20 -0600
berak
why it cannot detect some profile face?
Facedetection
profileface
162
views
1
answer
no
votes
2018-12-14 04:18:51 -0600
berak
opencv_createsamples mixed mode
cvHaarCascade
opencv_createsamples
1k
views
no
answers
no
votes
2018-12-15 13:04:42 -0600
Abra
Fire and Smoke Detection use Color or Haar [closed]
firedetection
926
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
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
220
views
1
answer
no
votes
2019-01-16 04:55:03 -0600
StevenPuttemans
What algorithms are best used for recognizing objects in the street from a video stream
Haar
cascades
Neural
networks
opencv
1k
views
1
answer
no
votes
2019-01-16 07:28:31 -0600
berak
OpenCV 3.4.1 Cascade Classifier HOG
cascade-classifier
HOG
3k
views
2
answers
no
votes
2019-02-05 18:02:51 -0600
sturkmen
Barcode/label detection
cvhaartraining
label
barcode
358
views
1
answer
no
votes
2019-02-21 04:17:13 -0600
berak
Can we create our own haar-cascade file for multi-view face detection
opencv
python
cascade
cascadeclassifier
traincascade
246
views
no
answers
no
votes
2019-03-02 02:51:47 -0600
UnluckyTicket
Need help with training cascade classifier
cascadeclassifier
training
cascadetraining
673
views
1
answer
no
votes
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?
Haar
cvhaartraining
754
views
no
answers
no
votes
2019-03-07 09:20:15 -0600
UnluckyTicket
OpenCV Annotation Tool for Mac?
haartraining
macos
289
views
1
answer
no
votes
2019-03-20 01:48:30 -0600
berak
image questions in regards to training cascade classifier
LBP
casade
traincascade
image
589
views
no
answers
no
votes
2019-04-08 09:01:00 -0600
jonasiyou
Haar Cascade for fingers [closed]
finger
xml
Haar
cascade
144
views
no
answers
no
votes
2019-05-07 04:20:08 -0600
lovehell
Stage threshold in cascade training
cascadeclassifier
597
views
1
answer
no
votes
2019-08-15 12:49:35 -0600
berak
cmake build error for 'trancascade' app
traincascade
298
views
1
answer
no
votes
2019-08-15 14:07:44 -0600
berak
Avoid retraining a model when executing a program?
cascade
optimization
facial
recognition
346
views
no
answers
no
votes
2019-08-20 07:37:10 -0600
LBerger
Not able to identify the images correctly
carDetection
objectdetection
577
views
1
answer
no
votes
2019-08-26 13:31:24 -0600
berak
How the HoG features work with AdaBoost in openCV?
opencv
traincascade
HOG
adaboost
166
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
814
views
no
answers
no
votes
2019-09-19 07:10:02 -0600
dkprog
Is Haar cascade classifier suitable for bottle label detection?
haartraning
haarcascade
383
views
2
answers
no
votes
2019-10-08 09:21:08 -0600
nicolasabril
Software synthesizer interface detection (lines inside of circles)
HoughCircles
linedetection
matchTemplate
orientation
173
views
no
answers
no
votes
2019-10-13 15:21:50 -0600
jpmoraga
Issue with my train cascade
traincascade
120
views
1
answer
no
votes
2019-10-19 05:32:35 -0600
berak
where is cvCreateTrainingSamples() function?
createsamples.cpp
316
views
1
answer
no
votes
2019-11-24 12:12:33 -0600
berak
cascade training... help!
traincascade
350
views
no
answers
2
votes
2019-11-28 10:27:13 -0600
Elis4
How to use dnn as a detector for facemark ?
c++
opencv
face
dnn
Facemark
cascade
366
views
1
answer
no
votes
2019-11-28 11:04:17 -0600
holger
How to do hard negative mining for cascade classifier?
cascade
hardNegativeMining
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