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148 questions
Tagged
opencv4android
×
1k
views
1
answer
no
votes
2016-04-20 08:43:08 -0600
sturkmen
How to create an ROI (Region-Of-Interest or submat) from a contour?
opencv
opencv4android
Opencv3.0
contour
submat
410
views
1
answer
no
votes
2016-06-27 14:51:16 -0600
Solace
Why is the drawContour() in OpenCV generating this strange Mask?
opencv
opencv4android
Opencv3.0
contour
submat
694
views
1
answer
no
votes
2016-05-27 06:52:08 -0600
WhoAmI
Android Emulator Camera Displaying Blocks
opencv4android
android
emulator
camera
749
views
1
answer
no
votes
2016-06-26 09:38:52 -0600
sturkmen
How to draw contours INSIDE the edges of detected shape/blob?
opencv4android
opencv
Opencv3.0
1k
views
1
answer
no
votes
2016-06-28 00:02:26 -0600
berak
Converting histogram Mat to BitMap - Getting OpenCV Error (src.type() == CV_8UC1 || src.type() == CV_8UC3 || src.type() == CV_8UC4)
opencv4android
opencv
Opencv3.0
histogram
bitmap
875
views
1
answer
no
votes
2016-06-26 18:46:10 -0600
Solace
Why does calcHist() method create an empty black histogram Mat?
opencv4android
opencv
Opencv3.0
histogram
calcHist
591
views
1
answer
no
votes
2016-07-13 17:36:08 -0600
Tetragramm
Looking for a way to turn a circle (unfilled) into a line.
android
opencv
opencv4android
3k
views
1
answer
no
votes
2016-07-23 10:27:27 -0600
Solace
Is it possible to overlay a transparent image over a live camera view, such that it is overlayed over the captured photo as well?
opencv4android
Opencv3.0
opencv
overlay
displayoverlay
1k
views
1
answer
no
votes
2016-08-18 09:33:58 -0600
berak
Saving OpenCV images in Android
opencv4android
cvsavemage
save
java
android
752
views
1
answer
no
votes
2016-10-20 08:30:08 -0600
berak
how to detect corners in frames retrieved from Camera
opencv4android
corner-detection
cornerHarris
opencv2.4.11
466
views
1
answer
no
votes
2020-02-04 14:41:44 -0600
zzxjl1
Fatal signal 11 (SIGSEGV), code 2 from knnMatch in OpenCV4Android 3.2
opencv4android
bfmatcher
knnmatch
android
3.2.0
631
views
1
answer
no
votes
2017-04-18 13:56:27 -0600
g3org3
Building OpenCV4Android With OpenGL and OpenCL Support
opencv4android
android
opencv
746
views
1
answer
no
votes
2018-02-20 04:26:04 -0600
berak
Opencv4Android KCFTracker grayscale
opencv4android
android
kcf_tracker
2k
views
no
answers
no
votes
2012-08-15 15:46:17 -0600
Jeffeb3
Android Surface View Stops Updating [closed]
android
opencv4android
camera
SurfaceView
2k
views
no
answers
1
vote
2012-10-17 12:29:44 -0600
anaid
batchDistance assert error
opencv4android
features2d
333
views
no
answers
no
votes
2012-10-25 05:28:33 -0600
serfire
how to build opencv engine service package for android [closed]
android
opencv4android
223
views
no
answers
no
votes
2013-03-11 21:25:41 -0600
scylove1989
Preview Frame received. Need to create MAT and deliver it to clients
opencv4android
1k
views
no
answers
no
votes
2013-03-30 13:51:24 -0600
Dangthrimble
With Android, how do I pass control back to the main thread? [closed]
opencv4android
Multithreading
828
views
no
answers
1
vote
2013-05-02 09:15:18 -0600
MysticBE
Bruteforce and matching giving reverse results. Why?
android
java
opencv
opencv4android
bruteforcematcher
841
views
no
answers
1
vote
2013-05-04 07:40:49 -0600
utkarshmankad
POSE estimation in OpenCv Java using cvFindExtrinsicsCameraParams2
opencv4android
pose-estimation
1k
views
no
answers
no
votes
2013-12-05 10:35:35 -0600
scorpeeon
Best way/place to get timestamp on Android?
android
opencv4android
timestamp
Preview
onshutter
408
views
no
answers
1
vote
2014-01-19 09:03:49 -0600
Azwan
Converting threshold image to binary data [closed]
opencv
opencv4android
threshold
binary
convert
987
views
no
answers
no
votes
2014-09-19 10:19:35 -0600
ismail_gz
Error when linking libnative_camera_r2.2.0.so - QT + OpenCV4Android
opencv4android
qt5.2
libnative_camera
515
views
no
answers
no
votes
2014-03-18 09:40:47 -0600
mmisu
OpenCV Manager hardware not recognized
opencv4android
OpenCVManager
beaglebone
677
views
no
answers
3
votes
2014-04-18 02:11:31 -0600
Kimi Sun
Is it correct that I didn't generate libopencv_java.so in building OpenCV4Android?
opencv4android
build
libopencv_java
257
views
no
answers
no
votes
2015-03-04 13:31:53 -0600
Mytheral
Android - Does OpenCV4Android support sortIdx? [closed]
android
opencv
opencv4android
2k
views
no
answers
no
votes
2015-03-17 08:26:07 -0600
Mytheral
OpenCV4Android - Otsu's Method: Error [closed]
android
opencv4android
opencv
1k
views
no
answers
no
votes
2015-03-29 06:04:51 -0600
woshijpf
How to Modify OpenCV4Android Source Code to support USB Camera On Android device
opencv4android
usb
camera
android
1k
views
no
answers
1
vote
2015-04-05 11:07:27 -0600
nicolausYes
Detect type of document in a real-time
opencv
opencv4android
android
image-recognition
image-processing
949
views
no
answers
no
votes
2015-05-08 09:41:30 -0600
KevinWorkman
Android4OpenCV: setting resolution at startup
opencv4android
android
opencv
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