Questions - OpenCV Q&A Forum

3k

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1

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2016-07-27 00:35:22 -0600 berak

findChessboardCorners returing false boolean value?

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1

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2016-10-21 04:30:21 -0600 kbarni

How to read 10 bit tiff satellite image in opencv?

c++#opencv

714

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no

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no

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2016-10-23 23:32:51 -0600 arbj

which is better for opencv, C or Python?

c++#opencv

454

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2016-10-26 05:52:59 -0600 Balaji R

Here img is 16UC3... Comparing is wrong...Can someone help me with this [closed]

c++#opencv

706

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1

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no

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2016-11-01 10:34:02 -0600 berak

I am trying to recognize facial emotion using SVM, however every time I run the program I get an error stating "assertion failed (samples.cols== var_count && samples.type == CV_32F) in cv::ml::SVMImpl::predict in file....... line 1919"

c++#opencv

217

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no

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2016-11-01 23:41:44 -0600 Madalasa

How to load single bit 3 channel image? [closed]

c++#opencv

90

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1

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no

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2016-11-11 07:54:43 -0600 berak

I am working on recognition of faces in given videos with provided Data base.I am using createFisherFaceRecognizer() . But I am not getting Proper output. is it problem with Data base or the predict method, which i have used.

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2016-12-26 07:46:21 -0600 berak

Default color space for frames in video

c++#opencv

1k

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2017-01-19 02:46:34 -0600 subha

Read and save YUV images

c++#opencv

69

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2017-01-21 02:39:07 -0600 berak

How to retrieve the matched lines from the BinaryDescriptorMatcher

c++#opencv

379

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1

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2017-01-25 09:30:18 -0600 LBerger

Problem with call of function bm3dDenoising() and xphoto ...

277

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2017-01-28 06:33:38 -0600 agatte

How to compile opencv project in cmake [closed]

488

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2017-02-13 01:56:51 -0600 LBerger

How to get the total number of black pixels in the connected component to which a pixel is attached?

c++#opencv

719

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2017-02-20 22:46:35 -0600 frankieforceps

Error Debug Output for namedWindow call

c++#opencv

1k

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2017-03-03 02:11:51 -0600 LBerger

Warehouse Boxes Inventory Count

c++#opencv

102

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2017-03-27 23:05:03 -0600 vacky

Unable to convert YUV threshold limits to HSV

c++#opencv

75

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no

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2017-07-05 00:20:36 -0600 krishnasai

How to add some extra modules to existing opencv modules and work, how to do cmake

c++#opencv

87

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no

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2017-07-20 03:25:41 -0600 Alvaro

How can i reshape a Mat to a vector<Mat>?

c++#opencv

801

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1

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2017-07-24 06:22:08 -0600 berak

how can i "reshape" a matrix 4d to matrix 2d and vice versa?

c++#opencv

350

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1

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2017-07-25 05:31:28 -0600 Alvaro

how can i reshape a Mat 2D to vector<vector<Mat>>

c++#opencv

222

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1

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no

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2017-07-26 04:46:46 -0600 berak

Mat declaration: declaration dimensions and size() are differents

c++#opencv

238

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1

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no

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2017-07-28 06:41:23 -0600 berak

Resize Mat error components

c++#opencv

2k

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1

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no

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2017-07-31 07:03:43 -0600 berak

Fill a vector<vector<Mat>>

c++#opencv

246

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no

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no

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2017-08-01 07:23:29 -0600 kavitha

Opencv library need to be integrated to px4 for qualcomm snapdragon 820

c++#opencv

1k

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no

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2017-09-14 23:12:40 -0600 NV-PCMR

OpenCV Libaries not found. [closed]

2k

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2017-09-28 03:59:34 -0600 berak

OpenCV3.1 & opencv_contrib3.1 install in Ubuntu

c++#opencv

135

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no

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no

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2018-03-13 02:15:00 -0600 Mr.90

After Calibration How to take the AOI of the undistorted checker board

c++#opencv

932

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1

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no

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2018-03-14 07:20:05 -0600 berak

undefined reference to cv::ml::SVM::create()

c++#opencv

592

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2018-03-28 21:15:05 -0600 Shivanshu

how to do Backpropagation with opencv..

c++#opencv

2k

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3

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2018-05-18 13:05:24 -0600 sjhalayka

77 questions

findChessboardCorners returing false boolean value?

How to read 10 bit tiff satellite image in opencv?

which is better for opencv, C or Python?

Here img is 16UC3... Comparing is wrong...Can someone help me with this [closed]

I am trying to recognize facial emotion using SVM, however every time I run the program I get an error stating "assertion failed (samples.cols== var_count && samples.type == CV_32F) in cv::ml::SVMImpl::predict in file....... line 1919"

How to load single bit 3 channel image? [closed]

I am working on recognition of faces in given videos with provided Data base.I am using createFisherFaceRecognizer() . But I am not getting Proper output. is it problem with Data base or the predict method, which i have used.

Default color space for frames in video

Read and save YUV images

How to retrieve the matched lines from the BinaryDescriptorMatcher

Problem with call of function bm3dDenoising() and xphoto ...

How to compile opencv project in cmake [closed]

How to get the total number of black pixels in the connected component to which a pixel is attached?

Error Debug Output for namedWindow call

Warehouse Boxes Inventory Count

Unable to convert YUV threshold limits to HSV

How to add some extra modules to existing opencv modules and work, how to do cmake

How can i reshape a Mat to a vector<Mat>?

how can i "reshape" a matrix 4d to matrix 2d and vice versa?

how can i reshape a Mat 2D to vector<vector<Mat>>

Mat declaration: declaration dimensions and size() are differents

Resize Mat error components

Fill a vector<vector<Mat>>

Opencv library need to be integrated to px4 for qualcomm snapdragon 820

OpenCV Libaries not found. [closed]

OpenCV3.1 & opencv_contrib3.1 install in Ubuntu

After Calibration How to take the AOI of the undistorted checker board

undefined reference to cv::ml::SVM::create()

how to do Backpropagation with opencv..

ML svm, k-nn image recognition examples in c++

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