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12,357 questions
Tagged
6k
views
no
answers
no
votes
2020-04-04 20:50:36 -0600
supra56
AttributeError: 'NoneType' object has no attribute 'shape'
python#opencv#
126
views
no
answers
no
votes
2020-04-04 23:17:01 -0600
AaronB
Converting from OpenCV 3.4 to 4.2 divide issue (different results)
divide
opencv3.4
opencv4.2
1k
views
no
answers
no
votes
2020-04-05 09:14:55 -0600
Ceranthor
Creating image from polar coordinates
opencv#python
1k
views
no
answers
no
votes
2020-04-05 11:52:16 -0600
andrei186
multiplying homography and image matrices
multiplying
homography
and
image
matrices
163
views
no
answers
no
votes
2020-04-06 01:37:25 -0600
berak
Checking for Numbers of Blood Vessels Junctions Detected
image-processing
drawing
165
views
no
answers
no
votes
2020-04-06 07:09:14 -0600
dorohedoro
Robust OCR on alternating-distance handwritten grades
python3
OCR
dynamic_cropping
492
views
no
answers
no
votes
2020-04-06 09:51:17 -0600
GRASBOCK
CMake links dynamically even though its supposed to link statically [cross compilation Linux -> Windows]
c++#opencv#mingw
417
views
no
answers
no
votes
2020-04-06 10:21:59 -0600
Umut
How to copy shared OpenCV libraries to cmake's folder?
c++#opencv#ubuntu
1k
views
no
answers
no
votes
2020-04-06 13:06:20 -0600
stefanos.dimos
How to properly estimate the Z rotation using ArUco Markers
aruco
opencv
camera
pose_estimation
orientation
524
views
no
answers
no
votes
2020-04-06 14:32:47 -0600
andrei186
extract RGB values from ptr[c] = cv::Vec3b(ptr[c][2], ptr[c][1], ptr[c][0]);
extract
RGB
values
from
Ptr
425
views
no
answers
no
votes
2020-04-06 16:51:53 -0600
becca
Stereo Camera fisheye rectification problem
Rectification
fisheye
stereo-calibration
376
views
no
answers
no
votes
2020-04-06 22:01:23 -0600
LearningCV
training haar cascade with single positive sample
opencv_createsamples
opencv_traincascade
123
views
no
answers
no
votes
2020-04-06 23:30:25 -0600
George_cwg
_MM_PERM_ACBD problem in opencv 4.3.0 compiling
_MM_PERM_ACBD
undeclared
identifier
206
views
no
answers
no
votes
2020-04-07 20:27:50 -0600
Assaf M
Identifying positive pixels after color deconvolution ignoring boundaries
Deconvolution
Thresholding
adaptiveThreshold
67
views
no
answers
no
votes
2020-04-07 23:45:47 -0600
WayneCho
How can I measure the difference between two gradient maps? Is there any metric?
imageprocessing
552
views
no
answers
no
votes
2020-04-08 09:47:54 -0600
edif
How to determine and compensate for light falloff during stitching
illumination
light
brightness
falloff
compensate
uneven
846
views
no
answers
no
votes
2020-04-08 13:49:51 -0600
berak
openCV function '.read()' return (False, None)
None
483
views
no
answers
no
votes
2020-04-09 02:20:58 -0600
berak
Procedure for getting 3D coordinates from Stereo?
3dreconstruction
stereo-calibration
Stereovision
289
views
no
answers
no
votes
2020-04-08 18:07:31 -0600
h4k1m
Dot product on Vec2s returning incorrect results
dot
vectors
129
views
no
answers
no
votes
2020-04-08 20:26:25 -0600
alittlebirdy
Using convertTo corrupts the image
c++opencv
596
views
no
answers
no
votes
2020-04-08 21:54:42 -0600
redhwan
How to extract a feature from OpenCV instead of skimage?
feature
feature-extraction
python
image-processing
opencv
536
views
no
answers
no
votes
2020-04-09 07:56:43 -0600
noshky
1D->2D pose estimation - detect 2D camera location
solvePnP
camera-pose
pose-estimation
231
views
no
answers
no
votes
2020-04-09 13:25:25 -0600
chchang6
Test failure with opencv_perf_tracking
cvtest
build
1k
views
no
answers
no
votes
2020-04-10 01:37:27 -0600
Sundar_1998
Sneeze and cough detection
face_detection
RaspberryPi
912
views
no
answers
no
votes
2020-04-10 05:22:09 -0600
LewsTherin511
OpenCV - object detection on video, elaborate frames in real time
opencvpython
fps
Livestream
209
views
no
answers
no
votes
2020-04-10 05:50:06 -0600
noshky
Linearity of world angles from image pixels
angles
calibrate
568
views
no
answers
no
votes
2020-04-10 08:21:35 -0600
Tyommik
OpenCV::DNN doesn't support conv1d
dnn
pytorch
onnx
844
views
no
answers
no
votes
2020-04-10 13:56:40 -0600
TWAAL
I need to count the number of pixels that fall into a color range
color-segmentation
Color
colorspace
colortracking
138
views
no
answers
no
votes
2020-04-11 05:42:51 -0600
amartincv
How to create a OpenCV camera from this parameters?
camera
calibrateCamera
intrinsic
975
views
no
answers
no
votes
2020-04-11 08:43:32 -0600
carmeltop
gcc: error: long: No such file or directory (!!DENABLE_OPENCV_ALLOCATOR_STATS has set off)
windows7
opencv
64-bitwindows
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