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54 questions
Tagged
circle
×
2k
views
1
answer
no
votes
2020-10-02 20:04:26 -0600
sturkmen
Measuring the diameter of circles
circle
ellipse
426
views
1
answer
no
votes
2020-09-27 09:11:36 -0600
Chris
How to color the pixels in an image depending on whether they are inside/outside a zone/circle?
python
image
image-processing
mask
cv2
circle
1k
views
1
answer
no
votes
2020-03-17 13:53:02 -0600
exbigboss
fit a circle to a cloud of points
circle
fitting
212
views
no
answers
no
votes
2020-01-21 05:18:43 -0600
smoki3
Cascade Classifier Circle Detection [closed]
circle
xml
1k
views
no
answers
1
vote
2019-08-28 06:58:00 -0600
wackoo
Finding a circle with a defective contour
circle
contours
broken
bad
sodacan
defect
1k
views
1
answer
no
votes
2019-05-28 19:16:33 -0600
Tetragramm
one point (u,v) to actual (x,y) w.r.t camera frame?
c++
opencv
camera
circle
1k
views
1
answer
no
votes
2019-04-15 07:18:19 -0600
Chris
Detect decimal or small dot in image
digit_recognition
houghcircle
circle
dot
decimal
1k
views
1
answer
no
votes
2018-09-19 11:54:33 -0600
christian
Writting robust (size invariant) circle detection (Watershed)
circle
watershed
python
7k
views
5
answers
4
votes
2018-07-26 02:01:52 -0600
jsxyhelu
I need a maxEnclosingCircle function
circle
2k
views
1
answer
1
vote
2018-06-01 07:37:39 -0600
berak
Hough Circles way too Sensitive
Hough
circle
problem
1k
views
1
answer
1
vote
2018-05-02 08:54:19 -0600
joshuafc
Will putText,circle,line,rectangle for cv::cuda::GpuMat be implement?
gpumat
putText
circle
Line
rectangle
274
views
no
answers
no
votes
2018-02-15 18:14:05 -0600
Murilo Pereira
Different results of code language conversion [closed]
omr
java
c++
opencv
circle
perspective
604
views
1
answer
no
votes
2017-11-20 04:23:29 -0600
VxW
Remove defects from round object
opencv
circle
ellipse
294
views
no
answers
no
votes
2017-10-26 01:20:27 -0600
berak
Help detecting small hole on tube
detection
circle
houghcircle
contours
region
522
views
1
answer
no
votes
2017-10-23 09:25:40 -0600
essamzaky
How to detect circles with +/-5% error margin?
circledetection
houghcircle
hough_transform
circle
feature-detection
3k
views
3
answers
2
votes
2017-10-10 12:36:46 -0600
mfisher
Open CV's HoughCircles() is ~1000 times faster than my version
gpu
Hough
transform
circle
detection
630
views
no
answers
no
votes
2017-10-09 05:08:39 -0600
Martian
hough circle detection if circle extends outside of image?
Hough
circle
1k
views
1
answer
1
vote
2017-08-13 04:02:39 -0600
berak
Fast Radial Symmetry Transform Implementation
python
circle
detection
opencv
detect
906
views
1
answer
-2
votes
2017-06-30 01:42:01 -0600
berak
Is it possible to turn this c++ code into python code?
c++
python
circle
houghcircle
866
views
no
answers
1
vote
2017-04-24 08:34:42 -0600
StevenPuttemans
Algorithm advice: defect detection
defectdetection
defect
greyscale
2d-image
circle
2k
views
1
answer
no
votes
2017-01-21 21:20:42 -0600
Tetragramm
Finding Largest Circle Contained Within A Contour
contour
circle
255
views
1
answer
no
votes
2017-01-17 20:30:09 -0600
Balaji R
ColorConversionCodes COLOR_GRAY2RGB seems to behave like BGR
circle
ColorConversionCodes
draw
2k
views
1
answer
1
vote
2017-01-17 19:32:47 -0600
j0h
why is this circle only black?
colour
circle
draw
7k
views
2
answers
2
votes
2016-12-19 05:20:35 -0600
Soltius
Is it possible to draw half circle?
python
circle
shape
draw
ellipse
667
views
no
answers
no
votes
2016-09-21 15:36:45 -0600
ksiadz13
Hough Circles Detection CPU and GPU - min distance parameter
Hough
circle
houghcircle
gpu
CPU
CUDA
1k
views
no
answers
no
votes
2016-09-15 02:31:44 -0600
shek
Ring Detection [closed]
circle
HoughCircles
6k
views
3
answers
1
vote
2016-04-30 11:34:31 -0600
sturkmen
(Best) way to track a circle with a cross inside
tracking
ellipse
circle
contours
roundness
666
views
1
answer
no
votes
2016-03-22 12:19:26 -0600
kbarni
fastest way to detect a red ball?
HSV
circle
shape
207
views
no
answers
1
vote
2016-02-26 09:47:01 -0600
a.francesconi
Get a score for each detected circle using HoughCircles
houghcircle
circle
shape
feature-detection
5k
views
2
answers
no
votes
2016-02-04 06:53:01 -0600
Poovamraj
Whenever i use Imgproc.rectangle and Imgproc.circle function following error appears
rectangle
circle
opencv4android
1
2
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