First time here? Check out the FAQ!
Hi there! Please sign in
help
faq
tags
users
badges
This forum is disabled, please visit
https://forum.opencv.org
ALL
UNANSWERED
Ask Your Question
RSS
Sort by »
date ▼
activity
answers
votes
91 questions
Tagged
pixel
×
223
views
no
answers
no
votes
2019-10-11 02:29:38 -0600
lacrast
OpenCV Single Channel Pixel Value Number Colour [closed]
pixel
value
307
views
1
answer
no
votes
2019-04-01 10:21:37 -0600
mdresser
Extract pixel value from Mat not working (for me)
Mat
element
pixel
access
at
280
views
no
answers
no
votes
2019-03-22 15:52:29 -0600
zAsdf
How to measure a pixel's color every frame of a video?
pixel
Video
python
openvc
271
views
no
answers
no
votes
2019-02-21 05:29:37 -0600
berak
grayscale image pixel-based detect object
grayscale
image
pixel
intensity
422
views
no
answers
no
votes
2019-01-30 17:37:29 -0600
Vigneshraja
Image pixels of RGB frame to x and y coordinates in camera frame ( in Gazebo simulation)
pixel
depth
registration
2k
views
no
answers
1
vote
2019-01-30 01:53:14 -0600
DanielPi
How is the principal point defined?
pixel
506
views
1
answer
no
votes
2018-10-27 12:06:50 -0600
berak
color percentage in image
python
opencv
pixel
Count
964
views
1
answer
no
votes
2018-10-09 05:46:00 -0600
dadiaar
Show the brightness channel for each pixel
brightness
pixel
channel
2k
views
1
answer
no
votes
2018-08-28 14:54:46 -0600
MikeTronix
I have an image with all pixel values 0 i.e black image, i want to access pixels at certain image coordinates more then a 100 and change the value to 1 how can i do this using opencv python and for loops if possible?
copencv
python
foorloops
iterator
pixel
operations
105
views
no
answers
-1
votes
2018-07-31 19:24:04 -0600
Shmall27
How do I just get pixel data when using imread? [closed]
imread
cv2
pixel
RGB
data
1k
views
no
answers
no
votes
2018-07-06 07:33:58 -0600
mayra
How can we check if a particular pixel is in this pixel range or not?
pixel
vector
Color
c++
opencv
comparison
453
views
no
answers
no
votes
2018-06-01 03:46:31 -0600
ac123
Detecting/highlighting hot pixels (not removing them)
Hot
pixel
74
views
no
answers
no
votes
2018-04-01 07:53:21 -0600
open_ranger
Any easier way to do this?
forloop
pixel
231
views
no
answers
no
votes
2018-03-28 06:43:03 -0600
Chronos
a Line pixel comparison beetwen 2 frames of the same video
opencv
python
counting
pixel
1k
views
2
answers
no
votes
2018-03-26 07:43:29 -0600
vps
Remove pixels inside the region in an image
remove
pixel
116
views
no
answers
no
votes
2018-03-04 14:19:40 -0600
Cucchi
Threshold and pixel intense [closed]
display
single
pixel
747
views
1
answer
no
votes
2018-02-28 03:01:33 -0600
LBerger
How to access alpha value at pixel using Mat.data?
Mat
c++
data
pixel
443
views
1
answer
no
votes
2018-02-13 08:52:56 -0600
AcrimoniousMirth
OpenCV Python on RPi, can't seem to iterate through image width [closed]
pixel
write
python
RaspberryPi
image.cols
108
views
no
answers
no
votes
2018-01-24 03:09:12 -0600
Santhosh1
How to improve this pixel remover process?
pixel
234
views
1
answer
1
vote
2018-01-08 19:59:16 -0600
sjhalayka
trouble understanding pixel access
Mat
pixel
pixel-access
216
views
1
answer
no
votes
2018-01-01 22:34:00 -0600
rezaee
Is there a simple way to see the intensity of each point of an image?
c++
opencv
intensity
pixel
1k
views
1
answer
1
vote
2017-12-21 00:54:25 -0600
moHe
Python faster pixel access
python
loop
iterate
pixel
access
209
views
1
answer
-2
votes
2017-12-05 14:13:46 -0600
berak
Decomposing an image to several subimages
pixel
accessing
image
decomposition
227
views
no
answers
no
votes
2017-09-30 13:07:45 -0600
cjacquel
Access Mat elements in a loop in Android
put
get
pixel
Mat
slow
22k
views
2
answers
no
votes
2017-08-09 01:49:23 -0600
berak
How to find pixel's (with coordinates specified) color values?
pixel
blob-detection
Color
376
views
1
answer
no
votes
2017-07-24 05:02:05 -0600
arrfou
Is it possible to apply superpixel algorithm on depth data?
opencv
c++
super
pixel
945
views
no
answers
no
votes
2017-07-12 01:27:27 -0600
Debian LeoPragi
Pixel multiplication gives different result
pixel
590
views
2
answers
no
votes
2017-06-11 20:59:55 -0600
hoang anh tuan
Scanning white pixel and make rectangle for border contour
border
pixel
100
views
no
answers
no
votes
2017-04-22 07:01:17 -0600
sabra
change pixel value return false!
pixel
Mat
pixel-access
4k
views
1
answer
no
votes
2017-03-09 05:41:03 -0600
berak
Iterating and printing all pixel values from a Mat image
matrix
Mat
pixel
access
image
1
2
3
4
next page »
Links
Official site
GitHub
Wiki
Documentation
Contributors
Tags
pixel
×30
Mat
×6
python
×6
opencv
×5
c++
×4
access
×3
image
×3
Color
×2
data
×2
intensity
×2
pixel-access
×2
accessing
×1
at
×1
blob-detection
×1
border
×1
brightness
×1
channel
×1
comparison
×1
copencv
×1
Count
×1
counting
×1
cv2
×1
decomposition
×1
depth
×1
display
×1
element
×1
foorloops
×1
forloop
×1
get
×1
grayscale
×1
Hot
×1
image.cols
×1
imread
×1
iterate
×1
iterator
×1
loop
×1
matrix
×1
openvc
×1
operations
×1
put
×1
RaspberryPi
×1
registration
×1
remove
×1
RGB
×1
single
×1
slow
×1
super
×1
value
×1
vector
×1
Video
×1
Copyright
OpenCV foundation
, 2012-2018. Content on this site is licensed under a
Creative Commons Attribution Share Alike 3.0
license.
Powered by Askbot version 0.10.2
Please note: OpenCV answers requires javascript to work properly, please enable javascript in your browser,
here is how
dummy
×
