Questions - OpenCV Q&A Forum

350

views

1

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no

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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

801

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1

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no

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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

87

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no

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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

75

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no

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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

102

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no

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no

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

Unable to convert YUV threshold limits to HSV

c++#opencv

1k

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no

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

Warehouse Boxes Inventory Count

c++#opencv

719

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no

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no

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

Error Debug Output for namedWindow call

c++#opencv

488

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1

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no

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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

277

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1

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no

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

How to compile opencv project in cmake [closed]

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 ...

69

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1

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no

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

How to retrieve the matched lines from the BinaryDescriptorMatcher

c++#opencv

1k

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no

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no

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

Read and save YUV images

c++#opencv

4k

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1

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no

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

Default color space for frames in video

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.

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

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

453

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no

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no

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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

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

3k

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1

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no

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

How to read 10 bit tiff satellite image in opencv?

c++#opencv

4k

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1

answer

1

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2016-08-22 02:51:38 -0600 FooBar

identifier 'imshow' and 'waitkey' is undefined

c++#opencv

3k

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1

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no

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

findChessboardCorners returing false boolean value?

512

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1

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no

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2016-07-23 03:04:15 -0600 berak

why composeRT function is showing error for column vectors?

62

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1

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no

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2016-07-01 03:18:53 -0600 berak

Unexpected behavior of the program

c++#opencv

80

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1

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no

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2016-06-29 21:06:47 -0600 berak

I have problem with changing array data to matrix.

c++#opencv

1k

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1

answer

no

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2016-06-13 06:26:44 -0600 kevgeo

Finding Rank of Kernel

4k

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1

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no

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2016-06-11 05:27:20 -0600 berak

Calculate affine transformation matrix

c++#opencv

221

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1

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no

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2016-06-09 08:41:31 -0600 kbarni

Scene Reconstruction

280

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no

answers

1

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2016-06-06 04:18:51 -0600 kevgeo

Displaying matched Features

c++#opencv

1k

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no

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no

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2016-06-04 12:59:17 -0600 kevgeo

Drawing epipole lines

c++#opencv

1k

views

1

answer

no

votes

2016-05-27 01:04:14 -0600 kevgeo

HOG:How much to resize image when calculating HOG features?

c++#opencv

77 questions

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

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

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

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

Unable to convert YUV threshold limits to HSV

Warehouse Boxes Inventory Count

Error Debug Output for namedWindow call

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

How to compile opencv project in cmake [closed]

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

How to retrieve the matched lines from the BinaryDescriptorMatcher

Read and save YUV images

Default color space for frames in video

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.

How to load single bit 3 channel image? [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"

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

which is better for opencv, C or Python?

How to read 10 bit tiff satellite image in opencv?

identifier 'imshow' and 'waitkey' is undefined

findChessboardCorners returing false boolean value?

why composeRT function is showing error for column vectors?

Unexpected behavior of the program

I have problem with changing array data to matrix.

Finding Rank of Kernel

Calculate affine transformation matrix

Scene Reconstruction

Displaying matched Features

Drawing epipole lines

HOG:How much to resize image when calculating HOG features?

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