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1,159 questions
Tagged
java
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226
views
no
answers
no
votes
2020-01-12 05:34:37 -0600
Gourav
Difference in output of same c++ and Java function in OpenCV
Video
java
442
views
no
answers
no
votes
2020-01-13 20:53:04 -0600
supra56
Opencv Videocapture cannot get stream
videocapture
java
opencv
ipcamera
Livestream
3k
views
1
answer
no
votes
2020-01-24 08:37:12 -0600
decioschmitt
(-215:Assertion failed) m.dims >= 2 in function 'cv::Mat::Mat'
videocapture
java
Yolov3
5k
views
1
answer
no
votes
2020-01-24 09:44:22 -0600
robertodaza
VideoCapture (0) does not work in mac Catalina. The program crashed
java
Eclipse
macos10.15.2
catalina
opencv3.4.5
videocapture
3k
views
1
answer
1
vote
2020-01-29 02:58:57 -0600
berak
Face recognition app for android (OpenCV)
android
java
opencv
Facedetection
FaceRecognizer
621
views
no
answers
no
votes
2020-02-11 11:59:26 -0600
Tarcisioflima
Converting Mat to one dimensional float array for EM?
java
EM
CvMat
1d-image
976
views
no
answers
no
votes
2020-02-24 05:27:22 -0600
krjeev
Blob depth should be CV_32F or CV_8U
java
opencv
cvException
265
views
no
answers
no
votes
2020-02-25 07:25:11 -0600
Jonaskri
Upgraded from 3.4.9 to 4.2.0 and can no longer see camera view [Android]
android
opencv
java
367
views
1
answer
no
votes
2020-02-25 07:36:31 -0600
rm_ein
OpenCV 4.2: The method drawFrameAxes​(Mat, Mat, Mat, Mat, Mat, float) is undefined for the type Calib3d
java
opencv4.2
4k
views
1
answer
no
votes
2020-02-27 09:06:05 -0600
PressedTin
How do I get 0-255 RGB values from an RGBA mat?
android#studio
Mat
java
186
views
no
answers
no
votes
2020-02-28 14:44:41 -0600
ROMEL
from an image having multiple rectangles some rectangles are filled with lines an some are empty like given below in the image.i need to remove all the rectangles which are empty.Any suggestions?
java
opencv
python
468
views
no
answers
no
votes
2020-02-28 16:05:04 -0600
PressedTin
How do I make the method onCameraFrame() be called more frequently
OnCameraFrame
android#studio
android
java
481
views
no
answers
no
votes
2020-03-06 03:26:55 -0600
supra56
calling mat.copyto and mat.clone in loop causes machine to freeze in java [closed]
opencv
java
Mat
copyTo
clone
1k
views
1
answer
no
votes
2020-03-17 15:01:25 -0600
DrThrax
Java: Core.Pow: (-215:Assertion failed) depth == CV_32F || depth == CV_64F
java
opencv
BRISQUE
1k
views
1
answer
no
votes
2020-03-23 17:51:04 -0600
ssokolow
Find only internal contours in JavaCV/OpenCV
findContours
javacv
contours
java
opencv
2k
views
1
answer
no
votes
2020-03-28 05:49:53 -0600
otoker
Displaying UDP Multicast Stream
java
udp
CaptureVideo
488
views
no
answers
-1
votes
2020-03-28 10:44:17 -0600
katabolerTeufel
OpenCV 4.2 build with contrib modules java
java
buil
opencv4.2
157
views
no
answers
-1
votes
2020-04-05 13:25:52 -0600
lencls
How can i make matchtemplate with threshold (java maeven)
java
matchTemplate
310
views
no
answers
no
votes
2020-04-07 04:44:43 -0600
gaby
SIGSEGV in libopencv_core.4.1.dylib called from java, works on one machine but not another [closed]
4.1
java
macos10.15.4
773
views
no
answers
no
votes
2020-04-13 12:01:53 -0600
DarkSkies
2 Euro Coin detector which Country is it? Is it front or backside from this coin?
java
1k
views
no
answers
no
votes
2020-04-13 12:28:54 -0600
dhirwinjr
How to best free up DNN and GPU resources when finished?
java
CUDA
dnn
273
views
no
answers
no
votes
2020-04-26 20:07:02 -0600
LiorA
Opencv 4.3.0 build Failure (gradle 6.3 fail twice)
java
cmake
bash
gradle
1k
views
2
answers
1
vote
2020-04-27 01:45:58 -0600
pivdet
How to declare a small image for test in openCV Android?
android
java
kotlin
513
views
no
answers
no
votes
2020-05-01 03:41:04 -0600
JulesHummelink
Memory leak with openCV on android
android
opencv
java
memoryleak
504
views
no
answers
no
votes
2020-05-04 22:01:39 -0600
Altheim
How to classify image of object on a game board
android
image-recognition
similarity
detection
java
1k
views
no
answers
no
votes
2020-05-06 08:13:15 -0600
thor2.7182
Opencv430.jar was not created after cmake [closed]
java
jar
ubuntu20.04
intellij
ant
maven
190
views
no
answers
no
votes
2020-06-01 10:44:02 -0600
kamadi
issue training using lbph model
createLBPHFaceReco
java
310
views
no
answers
no
votes
2020-06-01 23:08:50 -0600
muas
I am using LBPH model yml to save images after train, how can i save images with their user-id
java
opencv
432
views
1
answer
1
vote
2020-06-12 06:51:33 -0600
Miorii
ORB model conversion from python to java
ORB
python
java
266
views
no
answers
no
votes
2020-06-23 08:37:18 -0600
gvfbossa
OpenCV Java VS Objective C
java
objectiveC
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