Questions - OpenCV Q&A Forum

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2015-10-03 07:02:41 -0600 gokulRaja

cv2.findContours error: (-215) step[dims-1] == (size_t)CV_ELEM_SIZE(flags) in function cv::Mat::create

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3

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2015-04-08 04:05:53 -0600 Siegfried

Different results of gpu::HOGDescriptor and cv::HOGDescriptor

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2018-08-06 03:45:40 -0600 ankitsakhuja

Detect flicker and stretched lines in video

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2016-01-08 12:12:50 -0600 thexnightmare

Calculating Z axis of tracked image or 3d tracker algorithm

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2017-02-25 09:51:34 -0600 Davaaron

Train own HOG

HOG
train

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2014-03-29 07:09:08 -0600 chrism2671

Transform Polar to Cartesian co-ordinates?

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2014-02-11 16:59:23 -0600 athoesen

Is it possible to merge multiple Kinect streams?

kinect
ros

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2

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2014-07-08 12:36:41 -0600 AMH

evaluate SIFT and SURF

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2015-12-16 09:59:44 -0600 bmosch

VideoCapture.isOpened() always returns false on Android

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2017-11-08 04:07:29 -0600 Robb

Make a NN work in 3.3.0 out of Tensorflow

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2016-11-17 23:48:23 -0600 [email protected]

TW6864 support for opencv?

TW6864

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2020-02-24 21:58:55 -0600 charlie

Create 2 channel image - grayscale and alpha

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2015-03-23 08:28:59 -0600 mahesh shukla

face recognition, opencv 2.4, javacv, JNI

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2016-12-07 03:14:59 -0600 Ananth Reddy

How to find a reference point for an image in python OpenCV?

python

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2018-03-23 01:57:46 -0600 santhosh21

How to add the points[4] to the contours by using opencv framework

rotatedrect

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2018-04-21 06:51:04 -0600 Dipak

Fusion of BOW descriptor and Zernike Moments Descriptor

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2019-05-21 15:01:04 -0600 violetforest

How to calculate pose and transformation for contours and its bounding rect for AR app?

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2015-02-17 20:11:57 -0600 Richard Y. Hayashi

How to detect labels with numbers in a black rectangle?

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2019-02-19 10:42:56 -0600 dkmurthy

How to identify if an object is placed correctly in a groove or not

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2018-07-17 00:39:55 -0600 bryan2lee

Does Opencv3.4 support Mali-T860 GPU acceloration?

android
gpu

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2018-01-10 12:05:08 -0600 sjmgarnier

Problem linking shared library libopencv_core340.dll with MinGW 64

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2016-09-27 07:18:28 -0600 greenworld

Error when opencv running (visual studio c++)

errorvisualstudio

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2017-11-17 00:54:24 -0600 district9

when read some videos，the func read() hangs

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2019-09-29 12:18:32 -0600 dtx0908

Building OpenCV for 32 bit codeblocks giving error in mingw32-make

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2015-11-06 04:48:03 -0600 anujsingh256

How face detection is achieved using haarcascade_frontalcatface.xml

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2019-11-20 08:18:31 -0600 Porucik Dan

How to get all reprojection errors from stereoCalibrate

stereo-calibration

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2018-04-08 16:55:13 -0600 SAKhan

Any OpenCV Function Similar to helperFind3Dto2DCorrespondences() function of MATLAB ?

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2017-06-22 05:57:48 -0600 Franz Kaiser

matchTemplate Resultspace Padding

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2016-02-01 19:44:26 -0600 madokaaukawa

how to distinguish between object and dirt/water.

deleted

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2016-02-26 11:16:13 -0600 foobar

12,357 questions

cv2.findContours error: (-215) step[dims-1] == (size_t)CV_ELEM_SIZE(flags) in function cv::Mat::create

Different results of gpu::HOGDescriptor and cv::HOGDescriptor

Detect flicker and stretched lines in video

Calculating Z axis of tracked image or 3d tracker algorithm

Train own HOG

Transform Polar to Cartesian co-ordinates?

Is it possible to merge multiple Kinect streams?

evaluate SIFT and SURF

VideoCapture.isOpened() always returns false on Android

Make a NN work in 3.3.0 out of Tensorflow

TW6864 support for opencv?

Create 2 channel image - grayscale and alpha

face recognition, opencv 2.4, javacv, JNI

How to find a reference point for an image in python OpenCV?

How to add the points[4] to the contours by using opencv framework

Fusion of BOW descriptor and Zernike Moments Descriptor

How to calculate pose and transformation for contours and its bounding rect for AR app?

How to detect labels with numbers in a black rectangle?

How to identify if an object is placed correctly in a groove or not

Does Opencv3.4 support Mali-T860 GPU acceloration?

Problem linking shared library libopencv_core340.dll with MinGW 64

Error when opencv running (visual studio c++)

when read some videos，the func read() hangs

Building OpenCV for 32 bit codeblocks giving error in mingw32-make

How face detection is achieved using haarcascade_frontalcatface.xml

How to get all reprojection errors from stereoCalibrate

Any OpenCV Function Similar to helperFind3Dto2DCorrespondences() function of MATLAB ?

matchTemplate Resultspace Padding

how to distinguish between object and dirt/water.

Ideas to distribute face detection

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