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29,830 questions
Tagged
1k
views
no
answers
no
votes
2018-10-31 01:36:50 -0600
Ops
Python - Filter contour by shape (find circles after HSV filtering)
python#contours
220
views
no
answers
no
votes
2018-10-31 01:15:27 -0600
Programming_Enthusiast
Writing your own freeman chain code without using openCv
Freeman
c++
opencv
machine-learning
5k
views
1
answer
no
votes
2018-10-31 02:33:26 -0600
berak
I got a error "Incorrect type of self (must be 'Feature2D' or its derivative)" from line7(keypoints~~)
error
blob
19k
views
1
answer
no
votes
2018-10-30 15:30:50 -0600
LBerger
how to decode by imdecode
imdecode
None
python3
cv2
3k
views
1
answer
no
votes
2018-10-30 13:24:37 -0600
Grieverheart
Incorrect Video Orientation
c++
Video
videofile
orientation
72
views
no
answers
-1
votes
2018-10-30 13:24:28 -0600
forhadsidhu
How to seperate ear region from face portion [closed]
image-recognition
3k
views
1
answer
no
votes
2018-10-30 09:53:57 -0600
berak
Unhandled exception at 0x000007FEFD87A06D in ConsoleApplication1.exe: Microsoft C++ exception: cv::Exception at memory location 0x000000000013F000. occurred
Unhandled
memory
location
228
views
1
answer
no
votes
2018-10-30 06:46:41 -0600
berak
Unable to train SVM Model using a vector of 2D Points using openCv
c++
machine-learning
SVM
2k
views
1
answer
6
votes
2019-04-02 04:40:01 -0600
Akhil Patel
OpenCV (android) : How to get image metadata [closed]
android
opencv
metadata
drawcontour
1k
views
1
answer
no
votes
2018-10-30 09:51:29 -0600
kbarni
What is the best value for thresholding for bimodal histogram
Thresholding
bimodal
523
views
no
answers
no
votes
2018-10-29 23:25:53 -0600
SULEIMMU
OpenCv Unknown exception in JNI code and then Empty JPEG image (DNL not supported) [closed]
jni
EmptyJPG
338
views
1
answer
no
votes
2018-10-30 03:06:45 -0600
berak
Training and prediction of class using SVM in OpenCv
c++
opencv
machinelearning
1k
views
no
answers
no
votes
2018-10-29 17:41:59 -0600
Adriano Santos
Segmentation fault (core dumped) - Python
segmentation
fault
python
ubuntu
1k
views
no
answers
1
vote
2018-10-29 11:28:18 -0600
kbarni
OpenCV in parallel threads
tbb
Multithreading
69k
views
1
answer
no
votes
2018-10-30 07:17:55 -0600
supra56
How to use Gstreamer pipeline in OpenCV ?
gstreamer
opencv
python
pipeline
Video
import
342
views
no
answers
no
votes
2018-10-29 08:12:58 -0600
mrath
Biased/constrained object pose in 2D
objectrecognition
templateMatch
feature-detection
opencv
python
503
views
no
answers
no
votes
2018-10-31 03:47:35 -0600
Anil Patel
Load and run tensorflow simple audio recognition demo
dnn
opencv_dnn
tensorflow
ml
audio
160
views
1
answer
-2
votes
2018-10-29 07:02:01 -0600
kbarni
Image recognition is possible or not? ?
androidopencvwin7
1k
views
no
answers
no
votes
2018-10-29 04:32:01 -0600
hotteock
reprojectImageTo3D components mean?
reprojectImageTo3D
depth
disparity
310
views
no
answers
-1
votes
2018-10-29 04:13:45 -0600
MAGMA
Can someone help me counting objects on shelf putting a border around that object?.. I am new to OpenCV
retail
116
views
no
answers
-2
votes
2018-10-29 03:51:48 -0600
yaniravia72
best method to track ping pong balls and 3 drones? [closed]
drone
colortracking
551
views
1
answer
no
votes
2018-10-29 06:58:21 -0600
berak
Unable to generate Freeman chain code using OpenCv
machinelearning
c++
opencv
1k
views
no
answers
no
votes
2018-10-29 03:12:23 -0600
prb
Tagging/annotating every frame in the video with the activity performed using OpenCV python
python
1k
views
1
answer
5
votes
2019-04-02 04:45:42 -0600
Akhil Patel
Opencv android : display popup in onCameraFrame when glare is detected on image. [closed]
android
opencv
gaussianblur
drawcontour
1k
views
1
answer
-1
votes
2018-10-29 04:27:55 -0600
berak
OpenCV (Java) : Draw a rectangle region on Camera View
java
camera
roi
region
OCR
43k
views
1
answer
1
vote
2019-11-07 16:14:21 -0600
stiv-yakovenko
How can I "Set OPENCV_ENABLE_NONFREE CMake option and rebuild the library in function 'create'"?
c++
SURF
nonfree
1k
views
no
answers
1
vote
2018-10-28 16:21:32 -0600
jbtr142
OpenCV 4.0 CNN for text detection
opencv4
1k
views
no
answers
no
votes
2018-10-28 09:44:12 -0600
berak
How do i autosize an image so that i do not get IndexError: index 303 is out of bounds for axis 0 with size 303
opencv
numpy
488
views
no
answers
no
votes
2018-10-28 05:44:26 -0600
berak
OpenCV 4.0 Alpha Installation
opencv4
macos
215
views
1
answer
no
votes
2018-10-28 05:31:32 -0600
berak
Checking the Sample Size Input for `cv::ml::StatModel::predict()` Loaded from File?
ml
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