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29,830 questions
Tagged
2k
views
2
answers
4
votes
2012-07-20 13:34:26 -0600
Ilya Lysenkov
Weird result while finding angle
python
sobel
canny
edges
20k
views
3
answers
4
votes
2015-10-20 08:30:16 -0600
amahta
Best method to track multiple objects?
object
Blob-tracking
camshift
tracking
1k
views
1
answer
3
votes
2012-07-20 12:09:25 -0600
Ilya Lysenkov
How to control the precision vs. recall rate of a classifier?
precision
recall
classifier
ml
detector
940
views
1
answer
no
votes
2012-07-11 13:51:40 -0600
AlexanderShishkov
Compiling OpenCV for iOS - no product type error
ios
compile
error
44k
views
1
answer
3
votes
2012-07-11 11:58:00 -0600
StevenBell
cv2.perspectiveTransform() with Python
perspectiveTransform
python
10k
views
2
answers
2
votes
2016-03-25 18:13:05 -0600
hondaman900
Broken python bindings with createEigenFaceRecognizer
python
cv2
Eigen
FaceRecognizer
train
9k
views
1
answer
4
votes
2012-08-08 01:01:49 -0600
Tran Thu Do
Is anyone using P3P or EPNP in solvePnP?
solvePnP
pose
estimation
solver
2k
views
2
answers
3
votes
2012-07-14 16:41:14 -0600
Michael Burdinov
Extracting a vector of pixel values across multiple frames
statistics
pixel
variance
saturation
type
9k
views
1
answer
no
votes
2012-08-14 03:30:52 -0600
powlee
VideoCapture is not working in OpenCV 2.4.2
installation
ffmpeg
stream
videocapture
2k
views
1
answer
1
vote
2012-07-18 03:56:43 -0600
Alexey Spizhevoy
Using OpenCV's stitching module, strange error when compositing images
opencv
stitching
7k
views
2
answers
3
votes
2012-07-13 01:48:51 -0600
Kirill Kornyakov
What's the best way to segment different coloured blobs?
HSV
Color
Channels
4k
views
1
answer
no
votes
2012-07-13 23:19:27 -0600
Abid Rahman K
Python findFundamentalMat
findFundamentalMat
python
2k
views
2
answers
no
votes
2012-07-12 16:49:17 -0600
blue
videofacerec.py example help
opencv
python
FaceRecognizer
camera
videocapture
2k
views
1
answer
no
votes
2012-07-12 11:03:32 -0600
Vincent Rabaud
compile error in opencv2/flann/lsh_table.h when compiling bgslibrary
opencv
bgslibrary
20k
views
2
answers
3
votes
2012-07-12 22:40:21 -0600
Niu ZhiHeng
How to add 2 Mat objects of different type?
c++
Mat
7k
views
1
answer
2
votes
2012-10-02 06:09:09 -0600
V.G.
filter2D and sepFilter2D, specifying the value for a constant border
border
filter
7k
views
3
answers
2
votes
2012-07-16 17:55:45 -0600
Thiago Santos
Using Hue and Saturation to calculate Backprojection of an object
c++
opencv
hue
saturation
464
views
1
answer
no
votes
2012-07-24 03:08:50 -0600
Jay Zhang
How to free the memory when I use the face detector?
face
detector
5k
views
1
answer
10
votes
2017-12-04 19:52:42 -0600
sjhalayka
How to find a "contour" of 3d object?
3d
contours
2k
views
1
answer
1
vote
2012-07-29 13:48:56 -0600
AlexanderShishkov
opencv2 ios framework error
ios
opencv
26k
views
7
answers
5
votes
2013-08-28 02:47:05 -0600
Sameer
Facial feature detection
face
FacialFeature
3k
views
2
answers
2
votes
2012-07-13 06:25:41 -0600
jayrambhia
Can't use pyramids in calcOpticalFlowPyrLK - Python
python
Video
tracking
calcOpticalFlowPyrLK
34k
views
4
answers
8
votes
2014-07-11 18:05:03 -0600
Witek
How to read directory with images by VideoCapture?
videocapture
io
918
views
1
answer
1
vote
2012-09-19 06:14:29 -0600
Vadim Pisarevsky
DCT coefficients in MPEG
DCT
coefficients
MPEG
1k
views
1
answer
no
votes
2012-07-13 10:01:17 -0600
XCoder
How to write Keypoints into document of txt
Keypoints
Txt
format
3k
views
1
answer
no
votes
2012-07-16 08:38:59 -0600
Tommy
Python correctMatches
python
correctMatches
2k
views
1
answer
5
votes
2015-09-16 18:27:08 -0600
sturkmen
Good Questions and Answers: How To?
guide
faq
forum
suggestions
8k
views
1
answer
no
votes
2012-07-14 12:20:15 -0600
ararr
select ROI with mouse and display video. Strange problem
Video
roi
mouse
12k
views
1
answer
2
votes
2012-07-14 04:56:13 -0600
AlexanderShishkov
How to used MSER in OpenCV2.4.2 to detect regions?
Opencv2.4.2
MSER
ellipse
region
4k
views
3
answers
2
votes
2012-09-14 07:15:35 -0600
tmanthey
Installing Sample App / OpenCV Manager
opencv
manager
android
install
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