Questions - OpenCV Q&A Forum

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2019-12-18 11:04:37 -0600 heisenburg007

Get video input when device not on uvc input

469

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2019-12-18 08:39:29 -0600 supra56

Kalman filter predict both velocity and position

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2019-12-18 02:03:35 -0600 tsameema

Error in backgroundSubtractorMOG_

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2019-12-18 01:22:40 -0600 mvuori

cv::Mat_ compiling error

VC15
Mat_

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2019-12-17 23:27:22 -0600 clefrks

error: (-215:Assertion failed) !_img.empty() in function 'imwrite [closed]

245

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2019-12-17 21:43:08 -0600 sid311

How to specify IPP version with CMake for versions 4.1.2/4.2.0?

IPP
lippicv

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2019-12-17 20:33:22 -0600 ChanKim

ubuntu 16.04, "VIDEOIO(V4L2:/dev/video0): can't open camera by index" after software update

camera

509

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2019-12-17 10:21:25 -0600 UU_KK

Opencv 3.4.8 + Opencv contrib 3.4.8 + mingw32-make + ERROR while compiling(libopencv_hdf348.dll))

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2019-12-17 07:59:08 -0600 kbarni

How to remove the element attached to the image border?

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2019-12-17 06:49:27 -0600 AlexB

Should I use `pkg-config --libs opencv4` or `pkg-config --libs opencv`?

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2019-12-17 04:43:25 -0600 HelloWorld

CMake Error: CMake was unable to find a build program corresponding to "Unix Makefiles". CMAKE_MAKE_PROGRAM is not set. [closed]

628

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2019-12-17 04:39:59 -0600 Bharathsh

How to do OCR on the strikethrough text.

110

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2019-12-17 02:14:24 -0600 Jackie

how can i put source image to destination image with source picture's original color using seamlessClone function

seamlessClone

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2019-12-17 01:40:14 -0600 esteban.da

Error building opencv with sfm module

9k

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2019-12-17 01:35:22 -0600 arafat

No module named 'cv2'

223

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2019-12-17 00:58:45 -0600 arafat

late fusion over color and texture descriptors

520

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2019-12-16 14:14:33 -0600 JulienM

How can I list available devices for each DNN backend?

730

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2019-12-16 12:21:55 -0600 michlvl

Build H-value histogram of HSV image: wrong parameters?

170

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2019-12-16 11:25:16 -0600 Jiangnan Cai

how to get an edge from the unconnected points?

226

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2019-12-15 21:37:09 -0600 Avadhoot05

Mass center of contour is showing incorrectly in opencv java

2k

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2019-12-15 12:43:34 -0600 Martian

Option: BUILD_opencv_python3 missing from cmake-gui

1k

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2

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2019-12-15 11:38:17 -0600 Eventine

Mahalanobis Distance between 2 images

4k

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2019-12-15 08:02:14 -0600 abcdcadb

trouble with imdecode: always returns none. Why?

python

18k

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3

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2019-12-15 00:56:11 -0600 essamzaky

How to eliminate small contours in a binary image?

168

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2019-12-15 00:52:15 -0600 essamzaky

Missing region when used findcontours

findContours

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2019-12-14 23:00:24 -0600 Gourav

unable to use cv2.imread(cv2.samples.findfile("lena.jpg")) in opencv

754

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2019-12-14 13:18:35 -0600 mvuori

How to overexpose an image

202

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2

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2019-12-14 12:43:13 -0600 bong0

Use custom classifier in ERFilter with python

8k

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1

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2

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2019-12-14 11:13:48 -0600 supra56

cv2.imshow and cv2.imwrite show different output from the same array[SOLVED]

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2019-12-14 06:29:08 -0600 rsvp

29,830 questions

Get video input when device not on uvc input

Kalman filter predict both velocity and position

Error in backgroundSubtractorMOG_

cv::Mat_ compiling error

error: (-215:Assertion failed) !_img.empty() in function 'imwrite [closed]

How to specify IPP version with CMake for versions 4.1.2/4.2.0?

ubuntu 16.04, "VIDEOIO(V4L2:/dev/video0): can't open camera by index" after software update

Opencv 3.4.8 + Opencv contrib 3.4.8 + mingw32-make + ERROR while compiling(libopencv_hdf348.dll))

How to remove the element attached to the image border?

Should I use `pkg-config --libs opencv4` or `pkg-config --libs opencv`?

CMake Error: CMake was unable to find a build program corresponding to "Unix Makefiles". CMAKE_MAKE_PROGRAM is not set. [closed]

How to do OCR on the strikethrough text.

how can i put source image to destination image with source picture's original color using seamlessClone function

Error building opencv with sfm module

No module named 'cv2'

late fusion over color and texture descriptors

How can I list available devices for each DNN backend?

Build H-value histogram of HSV image: wrong parameters?

how to get an edge from the unconnected points?

Mass center of contour is showing incorrectly in opencv java

Option: BUILD_opencv_python3 missing from cmake-gui

Mahalanobis Distance between 2 images

trouble with imdecode: always returns none. Why?

How to eliminate small contours in a binary image?

Missing region when used findcontours

unable to use cv2.imread(cv2.samples.findfile("lena.jpg")) in opencv

How to overexpose an image

Use custom classifier in ERFilter with python

cv2.imshow and cv2.imwrite show different output from the same array[SOLVED]

Camera calibration estimates incorrect field of view

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