Questions - OpenCV Q&A Forum

92k

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3

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4

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2017-01-21 04:49:38 -0600 sturkmen

How can I get frames from my webcam ?

webcam
frame

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1

answer

3

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2017-12-24 02:51:24 -0600 sturkmen

I have a patch for OpenCV, how can I do a contribution?

patch

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1

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10

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2012-06-08 17:42:01 -0600 AlexanderShishkov

What is InputArray?

core

59k

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1

answer

14

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2017-08-20 04:02:00 -0600 sturkmen

How to get and modify the pixel of Mat in Java?

10k

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2

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3

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2018-03-05 01:36:31 -0600 saideepthik

How to read/write video with OpenCV in Python?

30k

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3

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7

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2014-01-19 09:33:57 -0600 berak

How to build OpenCV with TBB support?

15k

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2

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3

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2013-09-23 05:47:22 -0600 StevenPuttemans

How to convert cv::Mat to std::string?

549

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1

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2

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2014-01-19 09:29:10 -0600 SpiderGears

Where can I get the latest OpenCV sources?

sources

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2

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2012-07-03 05:42:10 -0600 Philipp Wagner

face recognition for android

16k

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1

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9

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2012-06-29 02:11:10 -0600 AlexanderShishkov

How to get good matches from the ORB feature detection algorithm?

9k

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1

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2

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2012-07-24 07:46:58 -0600 Kirill Kornyakov

How to decrease the number of processed frames from a live video camera?

2k

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1

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2

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2012-07-08 17:27:27 -0600 Rui Marques

Which parameters findHomography you found to give better results?

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

2k

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1

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1

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2014-08-17 06:32:13 -0600 dang ky 3g mobifone

Need help resizing and blending two images (first attempt w/ OpenCV/Android)

5k

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1

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8

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2012-06-27 09:58:56 -0600 Vincent Rabaud

Do all opencv functions support in-place mode for their arguments?

4k

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2

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no

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2012-06-27 11:03:16 -0600 zx9r

Fish detection. Is haartraining a good approach ?

141k

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6

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14

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2014-09-25 12:02:22 -0600 lvv

What is the most effective way to access cv::Mat elements in a loop?

4k

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2

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2

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2014-09-01 15:46:09 -0600 Skuenstler

Allocation error with 'cvCreateGLCM' method

cvCreateGLCM

12k

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1

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6

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2015-09-16 18:14:45 -0600 sturkmen

How to read the pixels of the three channels at the same time?

1k

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1

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2

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2012-10-02 05:19:54 -0600 V.G.

HOG latent SVM obj detection doesn't seem to work

3k

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2

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1

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2012-06-28 13:32:17 -0600 WordBreaker

Where to find the documentation for GLCM APIs?

GLCM

7k

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2

answers

2

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2016-03-05 03:36:21 -0600 zshn25

How to reduce false positives for face detection

9k

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4

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6

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2012-07-05 07:03:38 -0600 Michael Burdinov

Area of a single pixel object in OpenCV

837

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1

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2

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2012-07-11 04:29:56 -0600 Andrey Pavlenko

Performance issues on porting warpPerspective into my project

11k

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2

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4

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2012-07-04 08:57:31 -0600 Kirill Kornyakov

Enable Multithreading with TBB during cascade training

1k

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1

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no

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2012-07-02 11:57:50 -0600 Andrey Pavlenko

GpuMat submatrix out of GpuMat object?

1k

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1

answer

1

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2012-07-04 12:11:22 -0600 sfwh

Why is 'cvGLCM' deprecated/moved to legacy? Are there some replacement?

4k

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1

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2

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2012-07-04 08:56:49 -0600 Vadim Pisarevsky

Which is more efficient, use contourArea() or count number of ROI non-zero pixels?

3k

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3

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2

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2018-08-18 02:21:08 -0600 Vajrayudha Ristiawanto

How to train cascade classifier

49k

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4

answers

2

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2012-10-02 05:53:47 -0600 V.G.

29,830 questions

How can I get frames from my webcam ?

I have a patch for OpenCV, how can I do a contribution?

What is InputArray?

How to get and modify the pixel of Mat in Java?

How to read/write video with OpenCV in Python?

How to build OpenCV with TBB support?

How to convert cv::Mat to std::string?

Where can I get the latest OpenCV sources?

face recognition for android

How to get good matches from the ORB feature detection algorithm?

How to decrease the number of processed frames from a live video camera?

Which parameters findHomography you found to give better results?

Unresolved inclusion in OpenCV+Android tutorial

Need help resizing and blending two images (first attempt w/ OpenCV/Android)

Do all opencv functions support in-place mode for their arguments?

Fish detection. Is haartraining a good approach ?

What is the most effective way to access cv::Mat elements in a loop?

Allocation error with 'cvCreateGLCM' method

How to read the pixels of the three channels at the same time?

HOG latent SVM obj detection doesn't seem to work

Where to find the documentation for GLCM APIs?

How to reduce false positives for face detection

Area of a single pixel object in OpenCV

Performance issues on porting warpPerspective into my project

Enable Multithreading with TBB during cascade training

GpuMat submatrix out of GpuMat object?

Why is 'cvGLCM' deprecated/moved to legacy? Are there some replacement?

Which is more efficient, use contourArea() or count number of ROI non-zero pixels?

How to train cascade classifier

build problems for android_binary_package - Eclipse Indigo, Ubuntu 12.04

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