Questions - OpenCV Q&A Forum

13k

views

2

answers

-1

votes

2020-02-27 21:12:46 -0600 supra56

Compare video frames

opencv#python

2k

views

2

answers

no

votes

2018-07-05 01:20:33 -0600 berak

problem with facedetection model from dnn module

312

views

2

answers

1

vote

2018-07-04 10:05:34 -0600 sturkmen

How to ignore the first and the last 10% of the videoCaption ?

videocapture

2k

views

2

answers

no

votes

2018-07-19 00:24:11 -0600 Stéphane Charette

[problem]:Using OpenCV with gcc and CMake

problem

2k

views

2

answers

no

votes

2018-07-12 02:29:33 -0600 berak

for below code I'm getting this error: OpenCV(3.4.1) C:\build\master_winpack-bindings-win64-vc14-static\opencv\modules\imgproc\src\color.cpp:11147: error: (-215) scn == 3 || scn == 4 in function cv::cvtColor

error

338

views

2

answers

2

votes

2018-07-16 23:03:57 -0600 js4267

make python binder return a list

c++
python

11k

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2

answers

no

votes

2018-07-19 04:26:49 -0600 kbarni

How to remove unwanted areas/pixels from image ?

1k

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2

answers

no

votes

2018-07-24 10:31:29 -0600 szymonk

dnn: classify with mean subtraction, results different for caffe and opencv

422

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2

answers

no

votes

2018-07-18 23:20:57 -0600 Stéphane Charette

The camera is not working

6k

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2

answers

1

vote

2018-07-20 08:04:40 -0600 jsxyhelu

How to find dimensions of an object in the image

333

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2

answers

no

votes

2018-07-24 09:21:41 -0600 kbarni

Separate HSV mask

separation

4k

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2

answers

2

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2018-07-23 17:56:07 -0600 sturkmen

finding chessboard corners doesn't work on thresholded images

4k

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2

answers

no

votes

2018-07-31 00:21:25 -0600 nobot

after successfully building with opencv contrib modules I am getting error

contrib_error

585

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2

answers

no

votes

2018-07-31 00:06:11 -0600 nobot

after applying cv::xphoto::bm3dDenoising ; imshow is giving insertion error

2k

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2

answers

1

vote

2018-07-29 23:54:23 -0600 jarulsamy

Error While installing OpenCV 3.4.2

5k

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2

answers

1

vote

2018-08-08 09:06:28 -0600 Mary-Ann

Running DNN on GPU (Problems with OpenCL and Halide)

2k

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2

answers

no

votes

2018-08-16 01:02:50 -0600 js4267

Opencv findCountours is not find all contours

1k

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2

answers

no

votes

2018-08-16 04:21:43 -0600 nobot

Mat::forEach operation is resulting in error

4k

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2

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no

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2018-08-15 21:49:03 -0600 duaneellis

Change camera size fails on windows, works on linux?

2k

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2

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no

votes

2018-08-16 04:00:23 -0600 LBerger

cv::multiply doesn't work

multiply

150

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2

answers

no

votes

2018-08-16 08:56:54 -0600 berak

Run the official face-detection sample and find the problem

android

987

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2

answers

no

votes

2018-08-31 02:32:03 -0600 Ziri

Circle detection

20k

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2

answers

-2

votes

2019-11-12 06:02:11 -0600 Tarviha

anyone know how to solve this error??

5k

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2

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no

votes

2018-12-08 11:52:53 -0600 Sellmair

Is there a way to use openCV contrib modules with Android (native)

1k

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2

answers

no

votes

2018-09-06 12:06:13 -0600 laurencedev

Is ASUS Tinker Board suitable for real-time face detection and object detection?

283

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2

answers

no

votes

2018-09-06 05:56:32 -0600 kbarni

Selection of stereo camera

cameraselection

7k

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2

answers

1

vote

2018-09-06 03:19:38 -0600 berak

How to set CMake options to compile some modules only?

cmake

4k

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2

answers

no

votes

2018-09-07 07:08:57 -0600 m93c

OpenCV.js unable to load haar cascades [closed]

236

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2

answers

no

votes

2018-09-11 23:57:26 -0600 berak

Sobel automatically default to Scharr when kernel size == 3?

205

views

2

answers

no

votes

2018-10-23 15:53:06 -0600 Na_Osi

Problem with brightness changing by pixel-access. Mat.

c++#Mat#brightness

29,830 questions

Compare video frames

problem with facedetection model from dnn module

How to ignore the first and the last 10% of the videoCaption ?

[problem]:Using OpenCV with gcc and CMake

for below code I'm getting this error: OpenCV(3.4.1) C:\build\master_winpack-bindings-win64-vc14-static\opencv\modules\imgproc\src\color.cpp:11147: error: (-215) scn == 3 || scn == 4 in function cv::cvtColor

make python binder return a list

How to remove unwanted areas/pixels from image ?

dnn: classify with mean subtraction, results different for caffe and opencv

The camera is not working

How to find dimensions of an object in the image

Separate HSV mask

finding chessboard corners doesn't work on thresholded images

after successfully building with opencv contrib modules I am getting error

after applying cv::xphoto::bm3dDenoising ; imshow is giving insertion error

Error While installing OpenCV 3.4.2

Running DNN on GPU (Problems with OpenCL and Halide)

Opencv findCountours is not find all contours

Mat::forEach operation is resulting in error

Change camera size fails on windows, works on linux?

cv::multiply doesn't work

Run the official face-detection sample and find the problem

Circle detection

anyone know how to solve this error??

Is there a way to use openCV contrib modules with Android (native)

Is ASUS Tinker Board suitable for real-time face detection and object detection?

Selection of stereo camera

How to set CMake options to compile some modules only?

OpenCV.js unable to load haar cascades [closed]

Sobel automatically default to Scharr when kernel size == 3?

Problem with brightness changing by pixel-access. Mat.

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