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12,357 questions
Tagged
720
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2016-03-31 23:57:42 -0600
Blaze
can't get trackbar working, getting : "Type invalid conversion from 'void (*)(int)' to 'cv::TrackbarCallback {aka void (*)(int, void*)}' [-fpermissive]"
Createtrackbar
trackbar
highgui
GUI
seeker
scroll
458
views
no
answers
no
votes
2014-08-17 06:35:59 -0600
dang ky 3g mobifone
Real time object dimension measurement using stereo vision
#stereovision
1k
views
no
answers
1
vote
2020-01-09 05:00:16 -0600
Sean87
Calibrating camera only for one plane
calibrateCamera
calibration
c++
opencv
182
views
no
answers
no
votes
2018-09-28 06:20:42 -0600
alex_s
Difference in time for YOLOv3
Yolov3
858
views
no
answers
no
votes
2019-04-22 14:44:17 -0600
JesperChr89
Error with webcam when compiling to Beaglebone Black
beaglebone
beagleboneblack
camera
415
views
no
answers
no
votes
2015-06-25 04:20:29 -0600
angela
Detections too small with OpenCV Cascade classifier
opencv
python
8k
views
no
answers
-1
votes
2013-07-30 09:42:02 -0600
droidCV
Overlay png image over jpg using openv Java API
#android#opencv
#opencv#java
#opencv4android
png
overlay
419
views
no
answers
no
votes
2018-03-07 12:59:52 -0600
Udaib khan
Dispalcement map filter using opencv java
displacement-mapping
imageoverlay
transparency
1k
views
no
answers
no
votes
2018-06-05 15:26:02 -0600
kmath
Aruco marker pose tracking method using fixed camera
aruco
pose-estimation
tracking
rotationMatrix
tvec
rvec
489
views
no
answers
no
votes
2015-06-09 05:50:40 -0600
Giancola
reprojection error
reprojectionerror
photogrammetry
opencv
principalpoint
1k
views
no
answers
no
votes
2015-02-11 10:27:53 -0600
Potato
How do I install different openCV versions without conflict?
opencv
installation
linux
315
views
no
answers
no
votes
2014-10-11 22:30:24 -0600
Agtria
How to get Inverse of DFT log spectrum in android?
fourier
dft
android
1k
views
no
answers
4
votes
2019-02-22 17:11:33 -0600
lakex24
Does readNetFromTensorflow support ".tflite" format?
dnn
tensorflow
MobileNet
618
views
no
answers
no
votes
2015-04-22 08:13:26 -0600
NumesSanguis
Gender classification tutorial Error: matrix is not continuous
Gender
GenderDetection
classification
c++
tutorial
513
views
no
answers
no
votes
2017-03-28 06:34:00 -0600
iuq
Why am I getting empty stitched image?
android#opencv
image-stitching
stitcher
c++opencv#stitching
1k
views
no
answers
no
votes
2017-01-05 06:14:40 -0600
Marcin
Get 3d coordinates by 2d point on camview
coordinates
calibrateCamera
distanceTransform
830
views
no
answers
no
votes
2015-12-09 07:32:56 -0600
nistar
How to calculate angle from homography
findHomography
1k
views
no
answers
no
votes
2015-03-23 06:48:17 -0600
Pedro Batista
OpenCV Exception: (-215) mat.type() == type() && mat.size == size && func != 0
opencv
exception
cvException
Mat
type
size
61
views
no
answers
no
votes
2014-08-28 20:14:58 -0600
Laskoski
Opencv not recognizing java.util
android
4k
views
no
answers
no
votes
2016-02-25 01:56:53 -0600
Tashen Jazbi
convert bitmap to Mat with new image and return it in opencv android
Facedetection
Mat
bitmaptomat
1k
views
no
answers
no
votes
2013-10-28 11:02:48 -0600
shige
What mean is SVM predict method return value ?
SURF
SVM
352
views
no
answers
no
votes
2017-05-17 11:24:09 -0600
U.Swap
sattelite image classification Opencv python
python
scikit
numpy
opencv
431
views
no
answers
no
votes
2016-02-25 09:50:06 -0600
eqnx
Rodrigues giving empty Matrix
rodrigues
android
opencv
rotation
matrix
453
views
no
answers
no
votes
2020-01-13 20:53:04 -0600
supra56
Opencv Videocapture cannot get stream
videocapture
java
opencv
ipcamera
Livestream
523
views
no
answers
no
votes
2017-11-22 09:49:44 -0600
kbarni
Arm Cross compile failed to include the header file
cross-compile
110
views
no
answers
no
votes
2015-01-15 20:19:28 -0600
Rashid99
Classification of objects in videos
objectdetection
1k
views
no
answers
no
votes
2018-03-21 11:48:41 -0600
Joaqim
Scanning Dates and Pertinent Numbers from Degraded Documents
opencv
machinelearning
c++
python
OCR
Tesseract-OCR
236
views
no
answers
no
votes
2016-08-04 08:58:33 -0600
WhoAmI
ORB Feature Descriptor Official Paper Explanation
ORB
ORBFeatureDescriptor
featuredetector
BinaryDescriptor
498
views
no
answers
no
votes
2014-11-14 05:37:27 -0600
piction
Binary image object recognition
#object_recognition
binary-image
#ORB
#bfmatcher
#shape
217
views
no
answers
no
votes
2017-04-10 04:58:45 -0600
StevenPuttemans
Object Serialization in C++ for storing the OpenCV's SVM object [OpenCV 3.1.0]
c++#opencv#SVM
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