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91 questions

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8k
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1
answer
3
votes
2017-06-16 13:20:40 -0500 berak

how to get the position of a pixel with the mouse?

923
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2
answers
1
vote
2012-12-04 03:16:07 -0500 Siegfried

Accessing pixel value always return same value

2k
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1
answer
1
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2013-03-20 20:41:41 -0500 piedar

Arbitrary grayscale pixel range

11k
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1
answer
1
vote
2013-04-27 01:47:15 -0500 wuling flag of Taiwan

modifying pixel value

106k
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3
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1
vote
2017-08-09 14:31:22 -0500 NerdyDroneBuilder

How to get pixel's value from a picture?

329
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1
answer
1
vote
2014-11-14 04:14:40 -0500 berak

modify pixel of image with 0.01

6k
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4
answers
1
vote
2016-06-10 04:43:37 -0500 AsparaJoe

Find the number of white pixels in contour

4k
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no
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1
vote
2015-06-22 06:26:05 -0500 Tanq

Set pixel format

244
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1
answer
1
vote
2016-02-04 12:08:58 -0500 goldroses

Obtaining Pixelvalue with various formats

1k
views
1
answer
1
vote
2017-12-21 00:54:25 -0500 moHe flag of China

Python faster pixel access

123
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1
answer
1
vote
2018-01-08 19:59:16 -0500 sjhalayka flag of Canada

trouble understanding pixel access

885
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no
answers
1
vote
2019-01-30 01:53:14 -0500 DanielPi

How is the principal point defined?

2k
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1
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no
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2012-08-31 01:26:25 -0500 Martin Peris

Reading pixel values from a frame of a video

106
views
1
answer
no
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2012-12-12 06:47:15 -0500 Haris flag of India

associate a string to a pixel

1k
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2
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no
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2012-12-20 22:49:51 -0500 Haris flag of India

extract a vector of pixels from a frame

188
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1
answer
no
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2012-12-20 05:11:23 -0500 vaaksiainen

How to use Mat_ ?

309
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1
answer
no
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2013-02-12 08:52:06 -0500 Guanta

Access values from Mat

2k
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2
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no
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2013-03-10 07:37:05 -0500 berak

one pixel's color

667
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3
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no
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2013-04-05 14:22:36 -0500 AlexanderShishkov flag of Russia

Count Pixel

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theodore gravatar imagemoHe gravatar imagesjhalayka gravatar imageDaniil Osokin gravatar imageMichael Burdinov gravatar imageNAYOSO gravatar imagejayrambhia gravatar imageMartin Peris gravatar imageVladislav Vinogradov gravatar imagemrgloom gravatar imageHimanshu gravatar imageStevenPuttemans gravatar imageUserOpenCV gravatar imageSiegfried gravatar imageHaris gravatar imagerich gravatar image