Questions - OpenCV Q&A Forum

833

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1

answer

no

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2016-05-17 04:35:31 -0600 Pranav Buradkar

Receiving Empty OpenCV Mat images in Android NDK JNI.

496

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1

answer

no

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2016-05-20 05:05:14 -0600 Dany

Android undefined reference to 'cvUpdateMotionHistory' [closed]

2k

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1

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no

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2016-08-09 08:33:13 -0600 mshabunin

OpenCV multi-threading frames on Android

252

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1

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no

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2016-09-23 03:50:51 -0600 berak

Opencv 2.4.11 android source code

2k

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1

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no

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2016-12-05 14:34:05 -0600 jcrist

fatal error: 'jni.h' file not found

918

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1

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no

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2017-05-09 03:32:55 -0600 jcrist

Java wrappers for OpenCV Text module

3k

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1

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no

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2017-07-12 04:07:40 -0600 rhardih

How to reduce the apk size of Android app which need openCv lib( only for Image processing)

1k

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1

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no

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2018-01-07 08:32:05 -0600 jimfcarroll

Java JNI “symbol lookup error” from custom native extension using OpenCV C++

702

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1

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no

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2018-11-09 06:46:26 -0600 caiocanalli

OpenCV Contrib Android - Module appears in Java, but not in C ++

1k

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1

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1

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2020-07-17 14:53:12 -0600 George Profenza

How to use OpenCV 4 in Java on Raspberry PI (armv6 and armv7 Raspian)?

6k

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2

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2

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2012-07-09 07:45:02 -0600 Andrey Pavlenko

Unresolved inclusion in OpenCV+Android tutorial

4k

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2

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2

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2012-12-14 03:05:39 -0600 V.G.

How the libopencv_java.so is copy to the apk when it is used the static lib type?

1k

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2

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6

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2012-12-14 03:02:06 -0600 V.G.

opencv for desktop java

2k

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2

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1

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2013-10-10 04:28:21 -0600 Alberto del Río

OpenCV4Android sample: "Type 'DetectionBasedTracker' could not be resolved"

3k

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2

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1

vote

2013-04-30 12:45:44 -0600 riothamus

Passing Bitmap to JNI

1k

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2

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2

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2013-01-20 09:23:22 -0600 Alexander Smorkalov

Is there a way to grab all the pixels of a matrix in Java, operate on every pixel, and then put them all back into the image, using only two JNI calls?

3k

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2

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no

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2013-03-06 03:37:32 -0600 Alexander Smorkalov

Use native OpenCV C++ camera in JNI call

833

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2

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1

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2013-03-07 05:26:18 -0600 Alexander Smorkalov

FAST detection possible with OpenCV Manager on Android?

2k

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2

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no

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2013-03-26 10:16:23 -0600 pocahentez

problem in cvtColor function

13k

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2

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no

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2013-11-06 10:17:34 -0600 leo

I can't compile JNI file

11k

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2

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2

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2015-08-24 09:50:45 -0600 sturkmen

subtract color from Mat

1k

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2

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no

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2017-05-17 11:07:19 -0600 sengsational

Android Studio: OpenCV + NDK

856

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2

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no

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2016-04-18 02:47:50 -0600 benjaminbillet

minMaxIdx missing in the JNI interface?

jni

6k

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3

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no

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2013-06-30 17:51:17 -0600 Paethon

Build OpenCV for Java on Ubuntu 12.10

3k

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3

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no

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2014-03-31 11:06:56 -0600 Andrey Pavlenko

How to pass a MatOfKeyPoint and MatOfPoint2f to native code? (OpenCV 4 Android)

3k

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4

answers

1

vote

2012-12-14 02:57:12 -0600 V.G.

FaceRecognizer.java in Opencv4Android 2.4.3

4k

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4

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4

votes

2013-07-16 08:11:15 -0600 Yoonje Choi

87 questions

Receiving Empty OpenCV Mat images in Android NDK JNI.

Android undefined reference to 'cvUpdateMotionHistory' [closed]

OpenCV multi-threading frames on Android

Opencv 2.4.11 android source code

fatal error: 'jni.h' file not found

Java wrappers for OpenCV Text module

How to reduce the apk size of Android app which need openCv lib( only for Image processing)

Java JNI “symbol lookup error” from custom native extension using OpenCV C++

OpenCV Contrib Android - Module appears in Java, but not in C ++

How to use OpenCV 4 in Java on Raspberry PI (armv6 and armv7 Raspian)?

Unresolved inclusion in OpenCV+Android tutorial

How the libopencv_java.so is copy to the apk when it is used the static lib type?

opencv for desktop java

OpenCV4Android sample: "Type 'DetectionBasedTracker' could not be resolved"

Passing Bitmap to JNI

Is there a way to grab all the pixels of a matrix in Java, operate on every pixel, and then put them all back into the image, using only two JNI calls?

Use native OpenCV C++ camera in JNI call

FAST detection possible with OpenCV Manager on Android?

problem in cvtColor function

I can't compile JNI file

subtract color from Mat

Android Studio: OpenCV + NDK

minMaxIdx missing in the JNI interface?

Build OpenCV for Java on Ubuntu 12.10

How to pass a MatOfKeyPoint and MatOfPoint2f to native code? (OpenCV 4 Android)

FaceRecognizer.java in Opencv4Android 2.4.3

JNI UnsatisfiedLinkError when running ant sample on Ubuntu

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