Questions - OpenCV Q&A Forum

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2017-08-23 05:40:00 -0600 gino0717

in BackgroundSubtractorMOG, can I have different learning rate in different region?

BackgroundSubtractor

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2013-01-11 03:11:09 -0600 manmedia

C++ map with <cv::Mat, IplImage*> key-value format

220

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no

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2018-04-05 13:32:14 -0600 Graf

matchTemplate unsatisfying results (OpenCV 3.4.1/C++)

matchTemplate

897

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no

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2018-11-20 06:49:13 -0600 khurram

conda can't find cv2 lib located at /opt/conda/python/3.6/cv2.cpython-36m-x86_64-linux-gnu.so

351

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2019-10-13 22:22:11 -0600 asmkleung

gfluidimgproc_func.simd.hpp not found

gfluidimgproc_func

647

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2014-03-13 03:11:30 -0600 alimyldz

facial expression recognition for ios

ios
XCode5.0

138

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2016-10-30 09:55:08 -0600 FooBar

Detecting an object and Defining its position in an image?

objectdetection

386

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2017-11-12 10:08:50 -0600 joy_nandi

Unable to create OpenCV Objects

704

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2017-02-04 14:05:56 -0600 Smosher104

How do I detect vertices of an approximated polygon?

1k

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2015-06-25 05:07:19 -0600 berak

please help me to resolve followoing errors

BUILD_TESTS

680

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2016-12-26 23:21:04 -0600 Pulkit

how to convert Mat to jbyteArray ??

android
jni

213

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2016-08-27 05:01:14 -0600 yudori

Video Completion Scheme with OpenCV

opencv

93

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no

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2019-11-21 10:25:45 -0600 JoseAFern

cv::ml::rtrees importance calculation

1k

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2013-07-24 06:47:55 -0600 Apieropan

Problem with LAb color space

147

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2019-12-18 13:12:46 -0600 chnbr

detectMultiScale(...) internal principle ?

detectMultiScale

168

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2016-06-02 11:37:05 -0600 Ragav

Linux video capture does not work cam3 or Image capture in cam1 fails.

289

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2014-02-20 10:13:39 -0600 mtourne

FileStorage and (smart) pointers

88

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2016-08-29 07:14:58 -0600 ven

Clarification about incorrect image matching points in SIFT

SIFT

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no

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2016-08-06 18:23:20 -0600 gregoireg

Distortion camera matrix from real data

190

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2019-07-07 13:15:29 -0600 SebastianU

system vision - only method

computervision

356

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answers

1

vote

2014-01-31 04:11:25 -0600 residentelvio

Color Decorrelation

325

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2019-07-04 19:03:32 -0600 TrinityBomber

Example doesnt correctly

CaptureVideo

459

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2018-02-21 19:21:24 -0600 nibiralpha

sift keypoint into json object

286

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2016-11-22 22:39:28 -0600 rider44

Can I install both OpenCV2.4 and OpenCV3.1 with Homebrew on a Mac?

177

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no

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2018-03-19 02:17:49 -0600 SatishYelike

I have installed OpenCV for Python applications in Windows. I am able to access OpenCV only Administrator login. But not from USERS login. Request your help to access OpenCV from users login

114

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2018-11-08 10:55:34 -0600 Tyrone2142

why are the red rectangle areas not of the same size?

stereorectify

6k

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no

answers

1

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2015-09-09 04:39:37 -0600 berak

OpenCV Java how to access or convert List<MatOfPoint> to a list of points (x,y)

java
opencv

203

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2014-11-09 06:50:01 -0600 nicknguyen071093

Face Recoginition - Process is very slow if images from camera doesn't contain face.

deleted

435

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2016-04-17 13:08:06 -0600 Shaswat

findEssentialMat gives wrong results in android

646

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no

answers

-2

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2018-07-05 12:04:08 -0600 OpenCVNoob69

12,357 questions

in BackgroundSubtractorMOG, can I have different learning rate in different region?

C++ map with <cv::Mat, IplImage*> key-value format

matchTemplate unsatisfying results (OpenCV 3.4.1/C++)

conda can't find cv2 lib located at /opt/conda/python/3.6/cv2.cpython-36m-x86_64-linux-gnu.so

gfluidimgproc_func.simd.hpp not found

facial expression recognition for ios

Detecting an object and Defining its position in an image?

Unable to create OpenCV Objects

How do I detect vertices of an approximated polygon?

please help me to resolve followoing errors

how to convert Mat to jbyteArray ??

Video Completion Scheme with OpenCV

cv::ml::rtrees importance calculation

Problem with LAb color space

detectMultiScale(...) internal principle ?

Linux video capture does not work cam3 or Image capture in cam1 fails.

FileStorage and (smart) pointers

Clarification about incorrect image matching points in SIFT

Distortion camera matrix from real data

system vision - only method

Color Decorrelation

Example doesnt correctly

sift keypoint into json object

Can I install both OpenCV2.4 and OpenCV3.1 with Homebrew on a Mac?

I have installed OpenCV for Python applications in Windows. I am able to access OpenCV only Administrator login. But not from USERS login. Request your help to access OpenCV from users login

why are the red rectangle areas not of the same size?

OpenCV Java how to access or convert List<MatOfPoint> to a list of points (x,y)

Face Recoginition - Process is very slow if images from camera doesn't contain face.

findEssentialMat gives wrong results in android

How do you use OpenCV to find horizontal angle and vertical angle from the center of an image to the center of a rectangular contour?

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