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29,830 questions
Tagged
6k
views
1
answer
no
votes
2020-04-02 03:36:47 -0600
berak
How to solve error: (-215:Assertion failed) !empty() in function 'cv::CascadeClassifier::de
opencv
python
python3.7
opencv4.1.2
143
views
no
answers
no
votes
2020-04-04 03:44:38 -0600
mgv18
Open cv installation on Raspberry Pi 3
RaspberryPi3#OpenCV
163
views
no
answers
-1
votes
2020-04-05 13:25:52 -0600
lencls
How can i make matchtemplate with threshold (java maeven)
java
matchTemplate
149
views
no
answers
-1
votes
2020-04-06 12:00:46 -0600
anitarentz
I need help to install openCV
opencv#c++#Install
894
views
no
answers
-1
votes
2020-04-07 15:20:17 -0600
sonam
cv2.error: OpenCV(4.2.0)
2dimage
2k
views
1
answer
-1
votes
2020-04-30 08:56:51 -0600
supra56
How to count if circle (cv2.circle) cross the line (cv2.line)
python
opencv
2k
views
1
answer
-1
votes
2020-04-29 10:48:37 -0600
Nagarjuna
How to Convert Mat to ArrayList<Point> Java
opencv
136
views
no
answers
-1
votes
2020-05-09 14:27:06 -0600
jeeva
find distance of x and y in discontinuity in alignment
Overlooked
521
views
1
answer
-1
votes
2020-05-10 12:15:58 -0600
LiorA
Eyes bags removal using OpenCV ?
face
775
views
1
answer
-1
votes
2020-05-15 04:56:35 -0600
berak
How to find neck detect part in our body or face?
Find
neck
cascade-classifier
classifier
579
views
no
answers
no
votes
2020-05-17 15:01:01 -0600
YigalB
Use openCV for object+distance detection
opencv
arduino
distance
165
views
no
answers
-1
votes
2020-05-18 10:49:05 -0600
berak
I want to print the number from image and count of arrow associated with it!
deleted
131
views
no
answers
-1
votes
2020-05-20 12:21:07 -0600
yr
Pose Estimation of moving stereo camera
stereo
3k
views
1
answer
-1
votes
2020-06-25 17:24:45 -0600
Teejay
Get an error when trying to install openCV. I don't understand the fix.
install
error
long
842
views
1
answer
no
votes
2020-05-28 10:30:14 -0600
kbarni
image segmentation
image-segmentation
1k
views
no
answers
-1
votes
2020-05-28 12:41:00 -0600
berak
imx8: resize.cpp:3784: error: (-215:Assertion failed) !ssize.empty() in function 'resize'
opencv
128
views
1
answer
-1
votes
2020-06-06 02:11:15 -0600
berak
object detection using pixel value
remote
sensing
742
views
1
answer
no
votes
2020-06-15 17:01:59 -0600
ajoeiam
error disrupting opencv install on Debian
install
debian
962
views
no
answers
-1
votes
2020-06-07 10:10:11 -0600
supra56
error: (-215) scn == 3 || scn == 4 in function cv::cvtColor
opencv
577
views
no
answers
no
votes
2020-06-08 09:24:47 -0600
nvedia
Delete frames from video with a specific color or object in it
python
Open
Video
c++
opencv
video-editing
6k
views
1
answer
-1
votes
2020-07-01 04:52:04 -0600
supra56
Inserting Logo in an image
bitwise
180
views
no
answers
-1
votes
2020-06-09 17:12:58 -0600
rr
cvtColor gives me a very red image or a blue image. I am unable to get the correct colors in it. I am using opencv 3.4.9.
cvtColor
4k
views
1
answer
no
votes
2020-06-13 02:13:58 -0600
berak
I Am Trying To Do Face-recognition With Python But I Am Getting This Error: cv2.error: OpenCV(4.2.0) /Users/travis/build/skvark/opencv-python/opencv/modules/imgproc/src/resize.cpp:4045: error: (-215:Assertion failed) !ssize.empty() in function 'resize'
opencv
python
241
views
no
answers
no
votes
2020-06-14 13:46:44 -0600
NotARobot
good tutorials for preforming VIO on a rpi3 [closed]
visualOdometry
compuervision
RaspberryPi
82
views
no
answers
-1
votes
2020-06-14 22:22:32 -0600
Zenora
How do i add the webcam feed from my AI facial detection software onto the top panel in my frame?
opencv
python
431
views
no
answers
-1
votes
2020-06-17 13:29:27 -0600
irwin_com
Realtime object detection with landmarks
Dlib
landmark
objectrecognition
575
views
no
answers
no
votes
2020-06-21 03:23:49 -0600
manan05
How to capture the photo or video of the person when their face is being detected.
camera
JavaCameraView
Facedetection
cvHaarCascade
415
views
no
answers
no
votes
2020-06-21 08:07:58 -0600
Hormuz
OpenCV VideoCapture/FFMPEG/VLC , which one for realtime Systems ?
opencv
vlc
FFMEPG
videocapture
realtime
761
views
no
answers
-1
votes
2020-06-23 11:48:50 -0600
supra56
Split bounding rectangle on white spaces columnwise
image
Split
2k
views
1
answer
no
votes
2020-06-23 12:11:41 -0600
supra56
Python3 can I replace waitKey() with an input using curses?
python3
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