Questions - OpenCV Q&A Forum

23k

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3

answers

no

votes

2018-02-06 02:44:23 -0600 VxW

Detect blur, sharpness of the single image

1k

views

3

answers

1

vote

2016-03-10 04:26:52 -0600 essamzaky

Fast element access macro in C++ API

11k

views

3

answers

3

votes

2016-03-18 08:20:27 -0600 mshabunin

Is it poosible to make OpenCV read multiple page tiff

9k

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3

answers

no

votes

2020-01-02 10:17:25 -0600 arnthorg

Delay when grabbing frames from webcam

grab
webcam

9k

views

3

answers

1

vote

2016-03-31 05:22:31 -0600 theodore

find all the colors of a given image and their pixel position

5k

views

3

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no

votes

2018-05-05 07:14:52 -0600 timmb

Stereo calibration for beginners

4k

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3

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1

vote

2019-09-27 23:58:09 -0600 kdupreez

OpenCV CUDA - method that works like inRange()

3k

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3

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no

votes

2016-04-05 04:48:03 -0600 kbarni

Math on every pixel to Calculate NDVI?

6k

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3

answers

1

vote

2020-07-24 10:46:51 -0600 Dail

ORB keypoints distribution over an image

12k

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3

answers

1

vote

2016-04-30 11:34:31 -0600 sturkmen

(Best) way to track a circle with a cross inside

32k

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3

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1

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2016-05-18 05:51:09 -0600 berak

module 'cv2' has no attribute 'createBackgroundSubtractorMOG'

11k

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3

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3

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2016-05-27 17:51:58 -0600 redleon80

How to detect marked black regions inside largest Rectangle Contour?

2k

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3

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2

votes

2016-06-21 10:26:03 -0600 theodore

How to evaluate light linearity and additivity with a camera

1k

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3

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no

votes

2017-06-06 05:39:52 -0600 lohachan0108

Remove noise image?

denoise

13k

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3

answers

4

votes

2019-06-27 13:50:00 -0600 tarchon

Find Peaks in Histogram

histogram

9k

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3

answers

3

votes

2016-09-30 08:05:36 -0600 Davide_sd

Detection of contours intersections

21k

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3

answers

1

vote

2017-09-13 12:15:39 -0600 Ahmad Khalid

error: (-215) scn == 3 || scn == 4 in function cv::cvtColor

python

1k

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3

answers

no

votes

2017-02-19 22:10:03 -0600 Netsai Chibuku

Can Haar or Cascade classifiers be accurate enough in detecting object size?

distance

5k

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3

answers

no

votes

2017-12-12 05:36:28 -0600 MarquesVanVico

recoverpose

18k

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3

answers

no

votes

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

How to eliminate small contours in a binary image?

4k

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3

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no

votes

2020-03-29 06:10:32 -0600 ComputerVisionary

Can someone explain me these terms (acceptanceRatio, HR, FA) in training haar cascade, and "acceptanceRatio 800:4.97153e-05" is it consider good?

18k

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3

answers

2

votes

2017-01-08 02:50:56 -0600 adiperry

fata error: LAPACKE_H_PATH-NOTFOUND when building OpenCV 3.2

20k

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3

answers

no

votes

2017-01-17 02:13:00 -0600 berak

library to link for imread

libraries

14k

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3

answers

no

votes

2017-01-27 08:42:44 -0600 Akhilesh

convert single channel to 3 channel

convert

21k

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3

answers

2

votes

2017-02-17 05:04:37 -0600 Balaji R

How can I best compare two BGR colors to determine how similar/different they are?

6k

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3

answers

1

vote

2017-02-19 03:25:30 -0600 G10DRAS

How to build OpenCV-2.4.13 with GTK3+?

523

views

3

answers

no

votes

2017-02-21 00:53:21 -0600 pi-null-mezon

how can i play video

videocapture

16k

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3

answers

1

vote

2017-03-06 04:46:55 -0600 jsxyhelu

How to remove the small blobs?

2k

views

3

answers

no

votes

2020-02-05 12:48:13 -0600 cudawarped

No effect from using cuda::Stream?

CUDA
stream

3k

views

3

answers

1

vote

2017-04-18 07:12:44 -0600 theodore

29,830 questions

Detect blur, sharpness of the single image

Fast element access macro in C++ API

Is it poosible to make OpenCV read multiple page tiff

Delay when grabbing frames from webcam

find all the colors of a given image and their pixel position

Stereo calibration for beginners

OpenCV CUDA - method that works like inRange()

Math on every pixel to Calculate NDVI?

ORB keypoints distribution over an image

(Best) way to track a circle with a cross inside

module 'cv2' has no attribute 'createBackgroundSubtractorMOG'

How to detect marked black regions inside largest Rectangle Contour?

How to evaluate light linearity and additivity with a camera

Remove noise image?

Find Peaks in Histogram

Detection of contours intersections

error: (-215) scn == 3 || scn == 4 in function cv::cvtColor

Can Haar or Cascade classifiers be accurate enough in detecting object size?

recoverpose

How to eliminate small contours in a binary image?

Can someone explain me these terms (acceptanceRatio, HR, FA) in training haar cascade, and "acceptanceRatio 800:4.97153e-05" is it consider good?

fata error: LAPACKE_H_PATH-NOTFOUND when building OpenCV 3.2

library to link for imread

convert single channel to 3 channel

How can I best compare two BGR colors to determine how similar/different they are?

How to build OpenCV-2.4.13 with GTK3+?

how can i play video

How to remove the small blobs?

No effect from using cuda::Stream?

register ir image to distorted rgb

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