Questions - OpenCV Q&A Forum

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2015-01-16 05:48:07 -0600 h_mahmoodian

how can i measure fps for camera?

c++
copencv

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2017-06-19 08:00:56 -0600 Aadhi

I've a bitmap image which contain both transparent area and non-transparent area. I've to find out non-transparent co-ordinates and change its perspective in android.

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2019-09-15 14:11:06 -0600 JeyP4

Is YUV2BGR_NV12 conversion necessary to imshow an YUV image?

103

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2015-12-16 12:38:56 -0600 Terry

Eigen, OpenEXR, OpenNI on Linux

openni

134

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answers

1

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2014-10-03 06:16:39 -0600 Ismael

Misunderstood part of the tutorial: OpenCV-Python Tutorials Documentation Release 1 Alexander Mordvintsev & Abid K May 10,

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2014-01-31 00:59:51 -0600 Ron6259

OpenCV 2.4.7.1 VideoWriter class not working in Java

125

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1

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2015-05-13 10:16:07 -0600 tingnewbie

how does "findcontours" store contours?

findContours

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1

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2015-08-13 03:55:19 -0600 NickDepal

Tracking features over time with BRISK

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2016-10-21 12:26:56 -0600 patrchri

Get depth data from Kinect v2 - ROS

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2015-01-10 06:02:16 -0600 Deepak Kumar

c++ interface of cvCreateImageHeader(), cvSetData()

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2015-02-04 13:59:37 -0600 jpmccaffery

imdecode, imread mismatch

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2014-08-12 07:37:21 -0600 tuco

how use attributes in xml with FileStorage

#2.4.6

158

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answers

1

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2015-03-10 08:54:03 -0600 Poyan

Java bindings missing a lot of stuff?

java
opencv

261

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-1

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2017-04-20 05:40:37 -0600 DEHANDPI

GpuMat produces error

191

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2017-08-03 10:06:38 -0600 walid hamdy

how to use unicode with knearest::train for arabic character

c++

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2018-03-09 13:41:24 -0600 jalal_ba

Error building opencv3.4.1 windows10 and cmake3.11

236

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-1

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2017-05-27 07:59:34 -0600 myCode

How to show Text if no face is detected with OpenCV?

java
opencv

172

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2014-08-28 08:42:45 -0600 hipx

Background subtraction resource leak

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2013-11-13 08:03:19 -0600 Cao Minh Vũ

Macport (Maverick) + opencv (2.4.7) + cuda (5.5)

618

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-1

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2017-09-19 06:27:21 -0600 gunas.idesign

OpenCV 3.3.0 predict mismatches with all

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2015-12-22 22:59:02 -0600 Ayesha Siddique

origin pixel

origin_pixel

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2019-06-20 22:38:32 -0600 Vizier87

"Major ver = 6" return from console

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2015-09-18 07:48:10 -0600 David_86

Data association for counting multiple targets?

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2014-03-21 11:51:18 -0600 alexx_m87

Error in every OpenCV sample for android

145

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2018-02-19 23:02:43 -0600 DenisN03

Why do we get different predictions when using java and python(dnn)?

417

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2015-11-26 12:35:34 -0600 phoenix37

OpenCV for Android - Mat.get(row, col, double[])

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2016-01-24 21:04:45 -0600 Sagar DV

Understanding stereo_match.py sample

414

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2014-01-31 17:00:51 -0600 LaGorraNegra

Getting Started With OpenCV for 32-bit Windows?

447

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2020-08-24 01:02:41 -0600 berak

request help,Status -43: CL_INVALID_BUILD_OPTIONS

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no

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2019-04-13 18:15:48 -0600 jaredl

Errors installing open CV

opencv#c++#Install

12,357 questions

how can i measure fps for camera?

I've a bitmap image which contain both transparent area and non-transparent area. I've to find out non-transparent co-ordinates and change its perspective in android.

Is YUV2BGR_NV12 conversion necessary to imshow an YUV image?

Eigen, OpenEXR, OpenNI on Linux

Misunderstood part of the tutorial: OpenCV-Python Tutorials Documentation Release 1 Alexander Mordvintsev & Abid K May 10,

OpenCV 2.4.7.1 VideoWriter class not working in Java

how does "findcontours" store contours?

Tracking features over time with BRISK

Get depth data from Kinect v2 - ROS

c++ interface of cvCreateImageHeader(), cvSetData()

imdecode, imread mismatch

how use attributes in xml with FileStorage

Java bindings missing a lot of stuff?

GpuMat produces error

how to use unicode with knearest::train for arabic character

Error building opencv3.4.1 windows10 and cmake3.11

How to show Text if no face is detected with OpenCV?

Background subtraction resource leak

Macport (Maverick) + opencv (2.4.7) + cuda (5.5)

OpenCV 3.3.0 predict mismatches with all

origin pixel

"Major ver = 6" return from console

Data association for counting multiple targets?

Error in every OpenCV sample for android

Why do we get different predictions when using java and python(dnn)?

OpenCV for Android - Mat.get(row, col, double[])

Understanding stereo_match.py sample

Getting Started With OpenCV for 32-bit Windows?

request help,Status -43: CL_INVALID_BUILD_OPTIONS

Errors installing open CV

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