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29,830 questions
Tagged
491
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2019-05-17 00:59:03 -0600
saniket123
java: symbol lookup error: undefined symbol: _ZN2cv3Mat20updateContinuityFlagEv
jni
opencv
lib
error
388
views
1
answer
no
votes
2019-05-17 09:51:07 -0600
Chris
I am building and document scanner application and facing issue with detecting corner circles
android
opencv
documentscanner
BlobDetection
607
views
no
answers
no
votes
2019-05-16 21:22:08 -0600
HKTURAN
Object detection slow processing video [closed]
cv2
python
423
views
1
answer
no
votes
2019-05-17 03:07:15 -0600
berak
How to use OpenCV2.4.10 with GPU, in the java environment ?
gpu
java
opencv2.4.x
133
views
no
answers
no
votes
2019-05-16 12:54:36 -0600
hua
Why I can't use the resulted gpumat from cv::cuda::Convolution::convole()?
CUDA
gpumat
Convolution
2k
views
1
answer
no
votes
2019-05-16 10:17:47 -0600
berak
OpenCV Error: Image step is wrong (The matrix is not continuous, thus its number of rows can not be changed
c++
opencv
2k
views
1
answer
no
votes
2019-05-17 10:26:09 -0600
HYPEREGO
How do I can create a Gaussian filter in CUDA that is larger than 32 and double type?
GaussianKernel
960
views
1
answer
no
votes
2019-05-16 09:50:01 -0600
berak
How to get stats from image segmented with watershed?
segmentation
connectedComponents
659
views
1
answer
no
votes
2019-05-16 08:37:34 -0600
HYPEREGO
Can I use cv::cuda::add for per-element addition to Mat?
opencv-cuda
280
views
no
answers
-1
votes
2019-05-16 06:52:36 -0600
Mellicent
cv2.error: (-215)
cv2.error
opencv
python
Raspberry
176
views
no
answers
no
votes
2019-05-16 08:27:12 -0600
osguli
VideoCapure::open(const String & filename) blocked 30s, Camera not running /On multi-thread, open() do like single-thread
Open
300
views
no
answers
no
votes
2019-05-16 03:35:15 -0600
tobia
Replace image background [closed]
computervision
427
views
no
answers
no
votes
2019-05-16 02:01:33 -0600
berak
Trouble while opening a model through "cv.dnn.readNetfromTensorFlow()" that is created in keras model and converted to tf pb file
keras
tensorflow
vgg16
dnn
268
views
2
answers
no
votes
2019-05-21 22:19:41 -0600
supra56
I have system with three camera. I have R and T matrix between C1 & C2 also between C2 & C3. How to transform a point from first camera to third camera?
multiplecameras
1k
views
no
answers
no
votes
2019-05-15 15:25:59 -0600
James Adams
Can I save H.264/5 data to MP4 without transcoding?
mp4
ViideoWriter
H264
316
views
no
answers
no
votes
2019-05-15 08:33:27 -0600
Vaibhav Pipara
how can we predict age of person from photo using python
opencv
python
ageprediction
158
views
no
answers
no
votes
2019-05-15 06:30:20 -0600
Shay Weissman
TinyYolo Tiny gives long process time once in a while
dnn
Yolov3
238
views
1
answer
no
votes
2019-05-15 07:49:00 -0600
berak
How to access webcamp with opencv in colab?
colab
opencv
2k
views
1
answer
no
votes
2019-05-21 08:17:24 -0600
kr1zz
EAST dnn.forward Assertion failed
python
dnn
assertion
detection
243
views
1
answer
no
votes
2019-05-15 09:57:11 -0600
HYPEREGO
where does the groud truth disparity image come from?
groud
truth
stereo
match
2k
views
1
answer
no
votes
2019-05-24 03:27:49 -0600
Lucy8
OpenCV.js unable to track coloured circle and draw circle on target.
OpenCV.js
javascript
439
views
1
answer
no
votes
2019-05-15 03:42:25 -0600
berak
while finding circle using hough circle i find this error?
houghcircle
python
imageprocessing
389
views
1
answer
no
votes
2019-05-14 23:11:59 -0600
kaim
What are the functions in opencv that takes only 8bit images
opencv
python
c++
imageprocessing
195
views
no
answers
no
votes
2019-05-14 22:39:33 -0600
kdanne
Error when using openCV CUDA
CUDA
2k
views
1
answer
no
votes
2019-05-14 18:29:18 -0600
david.bernstein
DISOptical flow in 4.1?
opticalflow
195
views
no
answers
no
votes
2019-05-14 16:48:10 -0600
chocolate_sprinkles
install opencv 3.4.2 on raspberry pi w zero
opencv
raspberrypiwzero
673
views
1
answer
no
votes
2019-05-14 11:57:59 -0600
muhammad1331
Error running CMake in opencv
cmake-error
722
views
no
answers
no
votes
2019-05-14 10:15:17 -0600
ahmad2301
How to measure screw thread using sub-pixel edge detection
Subpixeledgedtection
708
views
no
answers
no
votes
2019-05-14 11:28:17 -0600
larrydong
VideoCapture.open: Take a long time to open a USB camera.
videocapture
USBcamera
window10
visualstudio
1k
views
1
answer
no
votes
2019-05-17 08:58:17 -0600
Chris
color detection in different background of human machine interface
Color
HSV
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