Questions - OpenCV Q&A Forum

698

views

1

answer

-1

votes

2019-11-23 02:06:29 -0600 Akhil Patel

Detect all Countour not an only Rectangle

525

views

no

answers

no

votes

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

No opencv jar file created in build/bin

287

views

no

answers

no

votes

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

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

166

views

no

answers

no

votes

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

How to run Flash while opining camera?

1k

views

1

answer

1

vote

2019-11-12 12:00:52 -0600 dhirwinjr

Issue using OpenCV 4.1.1 and Tracking API in Java

8k

views

3

answers

no

votes

2019-11-30 08:47:40 -0600 rtrahms

Importing OpenCV 4.X android SDK module into Android Studio

205

views

no

answers

no

votes

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

Mass center of contour is showing incorrectly in opencv java

491

views

no

answers

no

votes

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

3k

views

1

answer

no

votes

2020-01-03 07:05:22 -0600 supra56

java.lang.UnsupportedOperationException: Mat data type is not compatible: 6[SOLVED]

2k

views

1

answer

1

vote

2020-01-29 02:58:57 -0600 berak

Face recognition app for android (OpenCV)

845

views

no

answers

no

votes

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

Blob depth should be CV_32F or CV_8U

260

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]

179

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?

444

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]

1k

views

1

answer

no

votes

2020-03-23 17:51:04 -0600 ssokolow

Find only internal contours in JavaCV/OpenCV

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

489

views

no

answers

no

votes

2020-05-01 03:41:04 -0600 JulesHummelink

Memory leak with openCV on android

293

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

2k

views

1

answer

-1

votes

2020-07-11 08:15:46 -0600 berak

how to resolve (-215:Assertion failed) !_src.empty() in function 'cv::boxFilter'

java
opencv

886

views

no

answers

no

votes

2020-08-19 12:34:30 -0600 Nagarjuna

opencv java How to sort contours from left to right [closed]

opencv
java

2k

views

no

answers

no

votes

2020-10-17 10:57:39 -0600 sturkmen

Convert Python Into Java / Kotlin using these operations

838

views

no

answers

no

votes

2020-12-04 09:17:00 -0600 fafafafa

pre-built OpenCv with extra modules for java

java
opencv

853

views

no

answers

no

votes

2020-12-05 08:45:02 -0600 fafafafa

Error building opencv with extra modules in Visual Studio 2013

opencv
java

1k

views

no

answers

no

votes

2020-12-07 14:26:14 -0600 fafafafa

errors when building opencv 4.5.0 wit extra modules using Mingw [closed]

opencv
java

354 questions

Detect all Countour not an only Rectangle

No opencv jar file created in build/bin

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

How to run Flash while opining camera?

Issue using OpenCV 4.1.1 and Tracking API in Java

Importing OpenCV 4.X android SDK module into Android Studio

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!

java.lang.UnsupportedOperationException: Mat data type is not compatible: 6[SOLVED]

Face recognition app for android (OpenCV)

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?

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

Find only internal contours in JavaCV/OpenCV

Java: Core.Pow: (-215:Assertion failed) depth == CV_32F || depth == CV_64F

Memory leak with openCV on android

I am using LBPH model yml to save images after train, how can i save images with their user-id

how to resolve (-215:Assertion failed) !_src.empty() in function 'cv::boxFilter'

opencv java How to sort contours from left to right [closed]

Convert Python Into Java / Kotlin using these operations

pre-built OpenCv with extra modules for java

Error building opencv with extra modules in Visual Studio 2013

errors when building opencv 4.5.0 wit extra modules using Mingw [closed]

Links

Contributors

Tags