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29,830 questions
Tagged
4k
views
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answers
no
votes
2019-03-30 02:19:17 -0600
Nitinnaik
Error: gst_element_get_state: assertion 'GST_IS_ELEMENT (element)' failed
gstreamer
159
views
1
answer
no
votes
2019-03-30 03:49:17 -0600
berak
How to find out the accuracy of facedetection?
Facedetection
2k
views
no
answers
1
vote
2019-04-01 02:45:12 -0600
t3rb3d
Memory leak with opencv Mat and std::queue
memoryleak
releasemat
buffer
513
views
no
answers
no
votes
2019-03-29 06:05:11 -0600
isra60
Video Capture read() does not maintain average fps in live source (rtsp)
videocapture
gstreamer#rtsp
404
views
no
answers
no
votes
2019-03-29 05:17:59 -0600
leekeifon
Memory corruption on cv::cuda::warpPerspective
memory
gpu
CUDA
930
views
1
answer
no
votes
2019-03-29 01:52:49 -0600
berak
Is is possible to use stitcher class in openCV.js?
stitcher
OpenCV.js
javascript
13k
views
1
answer
no
votes
2019-03-29 01:44:40 -0600
berak
How to draw line with alpha transparency?
draw
Line
165
views
1
answer
-1
votes
2019-03-30 03:39:26 -0600
berak
Why 'resize' become error after looping function was added?
resize
looping
image-processing
1k
views
no
answers
no
votes
2019-03-28 21:47:26 -0600
ice_and_ice
warning: ../../lib/libopencv_core.so, needed by ./lib/libopencv_highgui.so, not found (try using -rpath or -rpath-link)
libraries
1k
views
1
answer
no
votes
2019-03-29 02:17:13 -0600
berak
opencv.js vs opencv4nodejs
javascript#nodejs
565
views
1
answer
no
votes
2019-03-28 23:37:04 -0600
hariprasad
which version of opencv i should install for anaconda 3.7.1
videocapture
5k
views
1
answer
no
votes
2020-05-10 15:23:21 -0600
HYPEREGO
Mat to Eigen, eigen2cv and cv2eigen errors [closed]
Eigen
svd
c++
decomposition
957
views
no
answers
1
vote
2019-03-28 09:06:57 -0600
emlot77
How to detect an object in an image using HOG Descriptors?
HOG
objectdetection
objectrecognition
c++
opencv
186
views
no
answers
no
votes
2019-03-28 08:43:24 -0600
tobix10
Find significant differences in image
background-segm
background
segmentation
260
views
no
answers
no
votes
2019-03-28 06:20:48 -0600
noblerabbit
Double digit recognition
digit_recognition
digit_detection
636
views
no
answers
no
votes
2019-04-02 04:48:31 -0600
Akhil Patel
How to implement tesseract ocr in android using native c++ opencv [closed]
android
opencv
tesseract
native
drawcontour
1k
views
no
answers
no
votes
2019-03-28 04:16:29 -0600
Nitinnaik
getting error while importing cv2 in python2
gstreamer
399
views
1
answer
no
votes
2019-03-28 04:39:20 -0600
berak
Human detection on android phones
android
opencv
haarcascade
humandetection
HumanTracking
489
views
no
answers
no
votes
2019-03-27 23:06:06 -0600
mk_kannan
How to create xml file for fish detection
cvHaarCascadeClassi
haartraning
fishface
fisheye
objectdetection
214
views
no
answers
no
votes
2019-04-03 22:09:36 -0600
turiya
Cannot Run Code To Use Webcam capture and analysis
opencv
c++
visualstudio
552
views
no
answers
no
votes
2019-03-27 13:26:56 -0600
ladynoob
I'm got a "free(): invalid pointer" error when try using detectAndCompute
SURF
featuredetector
1k
views
no
answers
no
votes
2019-03-27 09:45:14 -0600
fredand44
How to build openCV.jar?
java
423
views
1
answer
no
votes
2019-03-29 11:24:44 -0600
most venerable sir
Android: Why can't I initialize BackgroundSubtractor with Video.createBackgroundSubtractorMOG2()?
BackgroundSub
299
views
2
answers
no
votes
2019-04-03 23:56:21 -0600
Tanisha
Link 404 error in DNN tutorial
documentation
dnnopencv
notfound
7k
views
no
answers
no
votes
2019-03-27 04:51:00 -0600
isma
How to calculate correct font scale to fit to the image using putText
copencv
cvPutText
318
views
1
answer
no
votes
2019-03-27 04:44:39 -0600
berak
SurfDescriptorExtractor is undefined- Error- OpenCV
imageprocessing
130
views
no
answers
no
votes
2019-03-27 03:36:05 -0600
pedro_bb7
opencv_createsamples makes a square white background around image [closed]
createsamples
11k
views
no
answers
no
votes
2019-03-27 02:33:19 -0600
jblumenkamp
Converting from RGB => YUV => YUYV => RGB results in different image
imageConversion
rgb2yuv
2k
views
1
answer
1
vote
2019-03-27 13:22:51 -0600
Zerok
automatically remove shadow and edge filling
edgedetection
152
views
1
answer
no
votes
2019-03-27 02:06:56 -0600
berak
type error : Incorrect type of self (must be 'ml_StatModel' or its derivative)
cv2.ml_SVM
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