Questions - OpenCV Q&A Forum

776

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1

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no

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2013-05-21 15:40:47 -0600 berak

Gabor filter implementation for a bitmap in Android

1k

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1

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no

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2013-08-18 12:47:02 -0600 agile

Mat to String and back in OpenCV4Android

6k

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1

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6

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2013-06-03 09:36:40 -0600 czerhtan

The difference between BruteForce-Hamming and BruteForce-HammingLUT

200

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1

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no

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2013-05-31 17:41:51 -0600 Notas

How much byte does BRIEF use with the Java wrapper?

588

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1

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no

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2013-09-16 08:00:15 -0600 Pascal66

Why does the image break when converted to byte[]? (takePicture with Opencv on Android)

2k

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1

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2

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2013-07-05 09:19:26 -0600 Andrey Pavlenko

OpenCL and GPU with Android OpenCV SDK

6k

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1

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5

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2015-08-26 09:07:11 -0600 Mehmet Taha Meral

Camera Preview slow on Android OpenCV +possible bottleneck found

942

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1

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-1

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2014-05-07 03:46:48 -0600 StevenPuttemans

Some small problems about OpenCV4Android haze removal

896

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1

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no

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2015-03-03 16:23:41 -0600 SARGE553413

Problem adding function to OpenCV4Android: UnsatisfiedLinkError

1k

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1

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no

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2015-03-18 12:38:29 -0600 Haris

OpenCV - Computing a best fit grid

225

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1

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no

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2015-08-03 19:16:57 -0600 unxnut

Isolating a change in color in OpenCV.

3k

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1

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no

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2015-08-30 04:56:30 -0600 berak

Null object reference while trying to show image on emulator, OpenCV4Android

696

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1

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2

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2015-09-23 10:42:10 -0600 berak

How to load EM model using OpenCV android sdk V3.0.0

335

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1

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no

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2016-01-08 11:06:34 -0600 Raymond

What is the best method for getting ROI of an eye?

197

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1

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1

vote

2016-02-19 04:35:56 -0600 Mustansar Saeed

False negatives in Face Detection

409

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1

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no

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2016-04-10 22:44:17 -0600 Tetragramm

Using OpenCV4Android, how to blur a part of an image?

1k

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1

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no

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2016-04-20 08:43:08 -0600 sturkmen

How to create an ROI (Region-Of-Interest or submat) from a contour?

411

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1

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no

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2016-06-27 14:51:16 -0600 Solace

Why is the drawContour() in OpenCV generating this strange Mask?

727

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1

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no

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2016-05-27 06:52:08 -0600 WhoAmI

Android Emulator Camera Displaying Blocks

750

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1

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no

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2016-06-26 09:38:52 -0600 sturkmen

How to draw contours INSIDE the edges of detected shape/blob?

1k

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1

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no

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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)

883

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1

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no

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2016-06-26 18:46:10 -0600 Solace

Why does calcHist() method create an empty black histogram Mat?

604

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1

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no

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2016-07-13 17:36:08 -0600 Tetragramm

Looking for a way to turn a circle (unfilled) into a line.

3k

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1

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no

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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?

1k

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1

answer

no

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2016-08-18 09:33:58 -0600 berak

Saving OpenCV images in Android

756

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1

answer

no

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2016-10-20 08:30:08 -0600 berak

how to detect corners in frames retrieved from Camera

468

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1

answer

no

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2020-02-04 14:41:44 -0600 zzxjl1

Fatal signal 11 (SIGSEGV), code 2 from knnMatch in OpenCV4Android 3.2

659

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1

answer

no

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2017-04-18 13:56:27 -0600 g3org3

Building OpenCV4Android With OpenGL and OpenCL Support

749

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1

answer

no

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2018-02-20 04:26:04 -0600 berak

Opencv4Android KCFTracker grayscale

3k

views

2

answers

3

votes

2012-09-28 09:59:22 -0600 Andrey Pavlenko

Android opencv eye detection

opencv4android

148 questions

Gabor filter implementation for a bitmap in Android

Mat to String and back in OpenCV4Android

The difference between BruteForce-Hamming and BruteForce-HammingLUT

How much byte does BRIEF use with the Java wrapper?

Why does the image break when converted to byte[]? (takePicture with Opencv on Android)

OpenCL and GPU with Android OpenCV SDK

Camera Preview slow on Android OpenCV +possible bottleneck found

Some small problems about OpenCV4Android haze removal

Problem adding function to OpenCV4Android: UnsatisfiedLinkError

OpenCV - Computing a best fit grid

Isolating a change in color in OpenCV.

Null object reference while trying to show image on emulator, OpenCV4Android

How to load EM model using OpenCV android sdk V3.0.0

What is the best method for getting ROI of an eye?

False negatives in Face Detection

Using OpenCV4Android, how to blur a part of an image?

How to create an ROI (Region-Of-Interest or submat) from a contour?

Why is the drawContour() in OpenCV generating this strange Mask?

Android Emulator Camera Displaying Blocks

How to draw contours INSIDE the edges of detected shape/blob?

Converting histogram Mat to BitMap - Getting OpenCV Error (src.type() == CV_8UC1 || src.type() == CV_8UC3 || src.type() == CV_8UC4)

Why does calcHist() method create an empty black histogram Mat?

Looking for a way to turn a circle (unfilled) into a line.

Is it possible to overlay a transparent image over a live camera view, such that it is overlayed over the captured photo as well?

Saving OpenCV images in Android

how to detect corners in frames retrieved from Camera

Fatal signal 11 (SIGSEGV), code 2 from knnMatch in OpenCV4Android 3.2

Building OpenCV4Android With OpenGL and OpenCL Support

Opencv4Android KCFTracker grayscale

Android opencv eye detection

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