Questions - OpenCV Q&A Forum

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2019-04-11 12:05:47 -0600 ManyToLearn

opencv4android for 3d reconstruction

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

Building OpenCV4Android With OpenGL and OpenCL Support

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1

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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?

596

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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.

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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)

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

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

880

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

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

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2016-06-26 18:44:38 -0600 Solace

Why am I getting this Assertion Failed error in my calcHist() call? [closed]

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

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

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2016-06-24 13:12:11 -0600 jojo94

how to use opencv4android pca to train svm model? [closed]

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2016-04-28 06:41:07 -0600 WhoAmI

Cannot load info library for OpenCV

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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?

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2016-04-19 04:02:09 -0600 Solace

How to determine if OpenCV4Android has already been initialized?

407

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

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

156

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2016-02-24 03:40:15 -0600 Mustansar Saeed

Detect real time face only [closed]

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2016-01-13 13:46:45 -0600 Solace

Why is pointPolygonTest() method of OpenCV4Android returning -1 for every pixel? [closed]

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2016-01-12 03:01:33 -0600 Solace

How to change the values of HSV channels of a pixel using OpenCV4Android?

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2015-09-28 11:53:43 -0600 Silberlicht

OpenCV4Android - Get 16bit pixel values?

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2015-08-27 15:31:55 -0600 DDS_Mytheral

Converting pixel data from MatLab to something useable in OpenCV4Android

223

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

Isolating a change in color in OpenCV.

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2015-05-08 09:41:30 -0600 KevinWorkman

Android4OpenCV: setting resolution at startup

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2015-04-05 11:07:27 -0600 nicolausYes

Detect type of document in a real-time

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

OpenCV - Computing a best fit grid

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2015-03-17 08:26:07 -0600 Mytheral

OpenCV4Android - Otsu's Method: Error [closed]

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2015-03-04 13:31:53 -0600 Mytheral

Android - Does OpenCV4Android support sortIdx? [closed]

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2014-01-19 09:03:49 -0600 Azwan

Converting threshold image to binary data [closed]

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

How much byte does BRIEF use with the Java wrapper?

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2013-05-16 12:02:38 -0600 StevenPuttemans

Convert String to Mat Java

213

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2013-05-16 01:46:10 -0600 atasoyh

static initialization And multipleAPK without Jni code

685

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3

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2013-05-14 06:34:12 -0600 MysticBE

41 questions

opencv4android for 3d reconstruction

Building OpenCV4Android With OpenGL and OpenCL Support

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

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

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

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

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

Why am I getting this Assertion Failed error in my calcHist() call? [closed]

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

how to use opencv4android pca to train svm model? [closed]

Cannot load info library for OpenCV

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

How to determine if OpenCV4Android has already been initialized?

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

Detect real time face only [closed]

Why is pointPolygonTest() method of OpenCV4Android returning -1 for every pixel? [closed]

How to change the values of HSV channels of a pixel using OpenCV4Android?

OpenCV4Android - Get 16bit pixel values?

Converting pixel data from MatLab to something useable in OpenCV4Android

Isolating a change in color in OpenCV.

Android4OpenCV: setting resolution at startup

Detect type of document in a real-time

OpenCV - Computing a best fit grid

OpenCV4Android - Otsu's Method: Error [closed]

Android - Does OpenCV4Android support sortIdx? [closed]

Converting threshold image to binary data [closed]

How much byte does BRIEF use with the Java wrapper?

Convert String to Mat Java

static initialization And multipleAPK without Jni code

Does the matching work in OpenCV 2.4.4?

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