Questions - OpenCV Q&A Forum

525

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2019-06-26 11:46:51 -0600 andresoares

No opencv jar file created in build/bin

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2019-07-10 10:34:51 -0600 eric_engineer

Building latest master for android but missing Java folder

build
java

135

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2019-07-10 18:56:09 -0600 SRG-FTL

Why do not the parameter values change using the trainAuto () function of the SVM class of OpenCV 3.4?

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2019-07-18 08:14:46 -0600 Rafutek

Build OpenCV Java for Linux, MacOS and Windows

145

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2019-08-05 21:08:46 -0600 Minekonst

Python to Java: KNearest training / numpy.loadtxt()

287

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2019-08-12 09:36:25 -0600 berak

OpenCV mat.get(y,x)[0] == mat2.get(y,x)[0] returns true when false [closed]

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2019-08-16 15:26:53 -0600 Sempai

CvException

166

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2019-08-26 09:44:04 -0600 Mralaa

How to run Flash while opining camera?

91

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2019-08-28 11:32:01 -0600 Prvind Panday

Why i am unable to launch?

java
Eclipse

339

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2019-10-03 04:24:26 -0600 Zyzyx

Error converting to Mat and performing affineWarp

115

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2019-10-05 11:39:37 -0600 matthewfromBelg

Aruco sample in Java

aruco
java

115

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2019-11-06 03:13:01 -0600 lolitsgab

Grabcut outputs only what was marked as GC_FGD

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2019-11-12 22:07:20 -0600 jlok

How do you properly track contours?

284

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1

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2019-11-29 20:57:32 -0600 blorgggg

Structured Light Module Missing "decode" function

205

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2019-12-15 21:37:09 -0600 Avadhoot05

Mass center of contour is showing incorrectly in opencv java

495

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2019-12-24 14:18:38 -0600 karDilip

OpenCV Java: Iterate through all points in Line as obtained from FitLine & find distance of each point to Contour edge using pointPolygonTest - Little Help Please!

opencv
java

274

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no

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-1

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2020-01-02 00:10:01 -0600 david cairns

skew angel correction using java [closed]

138

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2020-01-02 08:06:43 -0600 Gourav

Error while implementing the "out of focus deblur tutorial" in java

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1

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2020-01-06 09:37:59 -0600 Gourav

Java (-215:Assertion failed) mv[i].size == mv[0].size && mv[i].depth() == depth in function 'cv::merge'

java
merge

442

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2020-01-09 10:22:36 -0600 aironman

Error when I try to run Hello World OpenCV sample using java and eclipse

215

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2020-01-12 05:34:37 -0600 Gourav

Difference in output of same c++ and Java function in OpenCV

Video
java

584

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2020-02-11 11:59:26 -0600 Tarcisioflima

Converting Mat to one dimensional float array for EM?

852

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2020-02-24 05:27:22 -0600 krjeev

Blob depth should be CV_32F or CV_8U

260

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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]

179

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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?

450

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2020-02-28 16:05:04 -0600 PressedTin

How do I make the method onCameraFrame() be called more frequently

447

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2020-03-06 03:26:55 -0600 supra56

calling mat.copyto and mat.clone in loop causes machine to freeze in java [closed]

432

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no

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-1

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2020-03-28 10:44:17 -0600 katabolerTeufel

OpenCV 4.2 build with contrib modules java

152

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no

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-1

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2020-04-05 13:25:52 -0600 lencls

How can i make matchtemplate with threshold (java maeven)

261

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no

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2020-04-07 04:44:43 -0600 gaby

1,159 questions

No opencv jar file created in build/bin

Building latest master for android but missing Java folder

Why do not the parameter values change using the trainAuto () function of the SVM class of OpenCV 3.4?

Build OpenCV Java for Linux, MacOS and Windows

Python to Java: KNearest training / numpy.loadtxt()

OpenCV mat.get(y,x)[0] == mat2.get(y,x)[0] returns true when false [closed]

CvException

How to run Flash while opining camera?

Why i am unable to launch?

Error converting to Mat and performing affineWarp

Aruco sample in Java

Grabcut outputs only what was marked as GC_FGD

How do you properly track contours?

Structured Light Module Missing "decode" function

Mass center of contour is showing incorrectly in opencv java

OpenCV Java: Iterate through all points in Line as obtained from FitLine & find distance of each point to Contour edge using pointPolygonTest - Little Help Please!

skew angel correction using java [closed]

Error while implementing the "out of focus deblur tutorial" in java

Java (-215:Assertion failed) mv[i].size == mv[0].size && mv[i].depth() == depth in function 'cv::merge'

Error when I try to run Hello World OpenCV sample using java and eclipse

Difference in output of same c++ and Java function in OpenCV

Converting Mat to one dimensional float array for EM?

Blob depth should be CV_32F or CV_8U

Upgraded from 3.4.9 to 4.2.0 and can no longer see camera view [Android]

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?

How do I make the method onCameraFrame() be called more frequently

calling mat.copyto and mat.clone in loop causes machine to freeze in java [closed]

OpenCV 4.2 build with contrib modules java

How can i make matchtemplate with threshold (java maeven)

SIGSEGV in libopencv_core.4.1.dylib called from java, works on one machine but not another [closed]

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