Questions - OpenCV Q&A Forum

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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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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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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

378

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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]

487

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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

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

Error Debug Output for namedWindow call

c++#opencv

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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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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

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

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

c++#opencv

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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

347

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

Mat declaration: declaration dimensions and size() are differents

c++#opencv

238

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

Resize Mat error components

c++#opencv

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

Fill a vector<vector<Mat>>

c++#opencv

246

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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

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

OpenCV Libaries not found. [closed]

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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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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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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

1k

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1

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2018-04-02 17:58:51 -0600 phillity

opencv object detection tutorial not working

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3

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

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

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2018-06-05 06:15:52 -0600 sandy123

What is the difference between *double and cv::Mat_<double>&

c++#opencv

1k

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2018-06-13 07:04:00 -0600 wreck_zone

77 questions

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..

opencv object detection tutorial not working

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

What is the difference between *double and cv::Mat_<double>&

Problem: OpenCv not able to detect the camera while Qt can

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