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12,357 questions
Tagged
635
views
no
answers
no
votes
2019-09-10 02:19:43 -0600
enxdtw
cvtColor hls to rgb lightening image
cvCvtColor
CV_BGR2HLS
315
views
no
answers
1
vote
2019-09-09 03:04:15 -0600
Bleach
Multi camera calibration with flat pattern, error minimization.
camera
calibrateCamera
stereocalibrate
165
views
no
answers
no
votes
2019-09-08 22:41:23 -0600
shuaizhang
DNN do not support tf.tile
dnn
tf.tile
484
views
no
answers
no
votes
2019-09-08 21:23:55 -0600
karl liu
failed to compile OpenCV with CUDA at opencv_cudev module
build
245
views
no
answers
no
votes
2019-09-08 19:48:06 -0600
JailsonPanizzon
How create a release for windows with OpenCV and PyQt5?
release
windows
Generate
exe
419
views
no
answers
no
votes
2019-09-08 00:18:08 -0600
vickygig
why fx focal length is changing when I calibrating the camera.
calibration
188
views
no
answers
no
votes
2019-09-07 07:43:46 -0600
[email protected]
Hardware for opencv
opencv
541
views
no
answers
no
votes
2019-09-07 01:09:50 -0600
MHZ
Pattern recognition
python
opencv
392
views
no
answers
no
votes
2019-09-07 00:44:31 -0600
PR
error: undefined reference to 'cv::CascadeClassifier::detectMultiScale(cv::_InputArray const&, std::__ndk1::vector<cv::Rect_<int>, std::__ndk1::allocator<cv::Rect_<int> > >&, double, int, int, cv::Size_<int>, cv::Size_<int>)'
CascadeClassifier111
153
views
no
answers
no
votes
2019-09-05 13:49:38 -0600
tantony
New to OpenCV and Python
opencv
python
161
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
1k
views
no
answers
no
votes
2019-09-05 12:49:07 -0600
zkumar
Error in reading onnx model (python)
dnn#opencv
13k
views
no
answers
1
vote
2019-09-05 12:06:06 -0600
Tina J
libopencv_core.so.3.1: cannot open shared object file: No such file or directory
opencv
libopencv_core
74
views
no
answers
no
votes
2019-09-05 10:00:43 -0600
wangkaijiang
compile opencv4.1.1 and qt with mingw3.2 meet 'chmod' is not internal command
opencvqt
1k
views
no
answers
no
votes
2019-09-05 05:02:06 -0600
vladvin
error: (-215:Assertion failed) api != 0 in function 'getBackendName'
videocapture
python
ffmpeg
gstreamer
v4l2
396
views
no
answers
no
votes
2019-09-04 17:09:07 -0600
correia
triangulation points with projection matrix in stereorectify
stereo
stereorectify
3dreconstruction
5k
views
no
answers
1
vote
2019-09-04 16:23:31 -0600
Tina J
OpenCV: FOUR_CC tag is not supported
CV_FOURCC
CreateVideoWriter
195
views
no
answers
no
votes
2019-09-04 14:32:28 -0600
Varinder
How to measure the radius of a spherical object in OpenCV2?
MeasureSphere
93
views
no
answers
no
votes
2019-09-04 08:52:17 -0600
cjacquel
_ITERATOR_DEBUG_LEVEl for OpenCV 4.1.1
Debug
1k
views
no
answers
no
votes
2019-09-04 08:09:08 -0600
Sunilvb
Python error for 4.1.0 - cv.imshow(winname, mat) not implemented
opncv4raspberry-pi
704
views
no
answers
no
votes
2019-09-04 05:20:29 -0600
TheImageWhisperer
How do i find points of interest (keypoints) in a specific region of image
opencv
356
views
no
answers
no
votes
2019-09-04 04:51:25 -0600
blockchainmen
Co-ordinate system followed in cv2.warpAffine()
image-warping
warpAffine
affine-transform
coordinates
524
views
no
answers
no
votes
2019-09-03 20:23:21 -0600
Oliver Chen
Failed to get second frame from a CSI camera module
videocapture
154
views
no
answers
1
vote
2019-09-03 05:53:21 -0600
LiorA
Publish Android openCV Tutorial
android
194
views
no
answers
no
votes
2019-09-03 04:15:44 -0600
berak
Opencv4.1.1 build error
build-error
xfeatures2d.hpp
91
views
no
answers
no
votes
2019-09-03 03:08:39 -0600
cjacquel
Interior contours
FindContour
151
views
no
answers
no
votes
2019-09-03 03:06:57 -0600
cjacquel
pyrSegmentation now ?
pyrsegmentation
367
views
no
answers
no
votes
2019-09-03 02:54:25 -0600
TheImageWhisperer
How do i convert RGB to HSV255 (color not image)
opencv#python
HSV
RGB2HSV
167
views
no
answers
no
votes
2019-09-02 13:22:02 -0600
asagot
Formats supported by individual functions?
YUV
format
131
views
no
answers
-1
votes
2019-09-01 21:20:54 -0600
choikhss
How to make 3D AR object with real image with color corners?
object-tracking
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