Questions - OpenCV Q&A Forum

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2018-06-07 15:02:48 -0600 rwong

Why huge performance gap between opencv c++ native and java code on Android?

167

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2018-06-04 01:53:59 -0600 berak

Hi, I Want to ask about Open CV Java

741

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-1

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2018-05-30 00:28:21 -0600 nikshita

How to crop a single desired face out of multiple detected faces in java.

java
opencv

447

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2018-05-29 05:21:19 -0600 berak

Hi! i am trying to take and save a snapshot using java. How to remove the error generated as below:

opencv
java

325

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2018-05-08 14:31:08 -0600 Mus

WHAT IS THE BEST SOLUTION TO DO TRAFFIC LIGHT DETECTION USING OPENCV? [closed]

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2018-04-27 09:24:07 -0600 Marko5280

OpenCV 3.4.1 breaks Imgproc.putText(Mat, String, Point, int, int, Scaler) [closed]

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2018-04-14 21:43:26 -0600 JavaMaster

How to compile opencv-341.jar and opencv_java341.dll with org.opencv.face?

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2

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2018-04-04 10:05:47 -0600 Marko5280

SOLVED The method putText(Mat, String, Point, int, int, Scaler) is undefined for the type Imgproc

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2018-04-01 12:50:59 -0600 kurenchuksergey

OpenCV 3.4 Assertion failed (checkDetectorSize()) in setSVMDetector

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2018-03-30 14:11:23 -0600 Marko5280

Solved: The type list is not generic; it cannot be parameterized with arguments <MatOfPoint> [closed]

200

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2018-03-25 10:05:48 -0600 EdoTwentySix

Training custom dataset using Histogram of Gradients in java [closed]

110

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2018-03-20 13:09:04 -0600 Marko5280

Mat (int, int, int, byte[]) is undefinded

opencv
java

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2018-03-15 03:30:12 -0600 Mutpx

Compile openCV using JNI_VERSION_1_2

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2018-03-06 16:05:59 -0600 Marko5280

How do I convert byte[] to Mat.

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2018-02-27 10:34:33 -0600 BAHRAMUDIN ADIL

Build OpenCV3.4.1 from source on Ubuntu 16.04, but failed to generate Java bindings

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2018-02-20 09:19:03 -0600 Marko5280

How do I find a vertical line in a image?

113

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2018-02-19 23:02:43 -0600 DenisN03

Why do we get different predictions when using java and python(dnn)?

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2018-02-18 07:38:47 -0600 Marko5280

What are the correct data types for contours and moments?

293

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2018-02-15 18:14:05 -0600 Murilo Pereira

Different results of code language conversion [closed]

942

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2018-02-15 02:36:56 -0600 sid311

Adventures in OpenCV Building: OpenCV + Contrib 3.4 build results in neutered Java and Python files and no Matlab bindings

3k

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2018-02-10 04:58:16 -0600 sid311

CMake cannot detect latest Apache Ant 1.10.2

138

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2018-02-07 15:21:32 -0600 aditya

How to remove this error in javacv.... [closed]

1k

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2018-02-02 18:37:15 -0600 procton

What are m00, m10, m01 ect

134

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2018-01-23 12:55:29 -0600 Truefiber

Bounds extraction [closed]

347

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2018-01-17 21:28:15 -0600 lezo

phash of img_hash test fail in java

356

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2

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2018-01-04 09:21:29 -0600 Genom

How to contribute my code for Java bindings?

454

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2017-12-09 03:44:37 -0600 procton

Road detection and machine learning

658

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2017-12-05 13:12:23 -0600 procton

How manage RGB Pan sharpened image

265

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2017-12-01 23:05:45 -0600 BAHRAMUDIN ADIL

How we import OpenCV in java while using no compiler just Notepad?

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2017-12-01 03:10:08 -0600 StevenPuttemans

354 questions

Why huge performance gap between opencv c++ native and java code on Android?

Hi, I Want to ask about Open CV Java

How to crop a single desired face out of multiple detected faces in java.

Hi! i am trying to take and save a snapshot using java. How to remove the error generated as below:

WHAT IS THE BEST SOLUTION TO DO TRAFFIC LIGHT DETECTION USING OPENCV? [closed]

OpenCV 3.4.1 breaks Imgproc.putText(Mat, String, Point, int, int, Scaler) [closed]

How to compile opencv-341.jar and opencv_java341.dll with org.opencv.face?

SOLVED The method putText(Mat, String, Point, int, int, Scaler) is undefined for the type Imgproc

OpenCV 3.4 Assertion failed (checkDetectorSize()) in setSVMDetector

Solved: The type list is not generic; it cannot be parameterized with arguments <MatOfPoint> [closed]

Training custom dataset using Histogram of Gradients in java [closed]

Mat (int, int, int, byte[]) is undefinded

Compile openCV using JNI_VERSION_1_2

How do I convert byte[] to Mat.

Build OpenCV3.4.1 from source on Ubuntu 16.04, but failed to generate Java bindings

How do I find a vertical line in a image?

Why do we get different predictions when using java and python(dnn)?

What are the correct data types for contours and moments?

Different results of code language conversion [closed]

Adventures in OpenCV Building: OpenCV + Contrib 3.4 build results in neutered Java and Python files and no Matlab bindings

CMake cannot detect latest Apache Ant 1.10.2

How to remove this error in javacv.... [closed]

What are m00, m10, m01 ect

Bounds extraction [closed]

phash of img_hash test fail in java

How to contribute my code for Java bindings?

Road detection and machine learning

How manage RGB Pan sharpened image

How we import OpenCV in java while using no compiler just Notepad?

Document Detection working with C++ code, But trouble in java conversion.

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