Questions - OpenCV Q&A Forum

3k

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2

answers

-1

votes

2020-01-03 09:17:00 -0600 berak

how to resize image without changing dpi ?

DPI
image

1k

views

1

answer

no

votes

2020-01-03 06:52:19 -0600 LBerger

cv2.rectangle missing one side

rectangle

3k

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1

answer

no

votes

2020-01-03 07:05:22 -0600 supra56

java.lang.UnsupportedOperationException: Mat data type is not compatible: 6[SOLVED]

321

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no

answers

-1

votes

2020-01-02 14:39:42 -0600 ikaranta

YOLO ALGORITHM- uniqueness of objects

yolo

113k

views

2

answers

no

votes

2020-01-02 15:01:54 -0600 supra56

error: (-215:Assertion failed) !_src.empty() in function 'cvtColor'

cvtColor

359

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no

answers

1

vote

2020-01-02 10:28:52 -0600 jsterling

Implementing custom non-linear 2D filter in OpenCV

2k

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no

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no

votes

2020-01-02 09:28:43 -0600 Norlesh

Alternatives to OpenCV VideoCapture? [closed]

camera

150

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no

answers

no

votes

2020-01-02 08:06:43 -0600 Gourav

Error while implementing the "out of focus deblur tutorial" in java

715

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no

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no

votes

2020-01-02 12:46:56 -0600 paul espinosa

opencv dnn shows error when use resnet50.cfg from darknet

401

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1

answer

no

votes

2020-01-02 12:00:04 -0600 berak

Creating disparity maps with structured light

DisparityMap

245

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no

answers

no

votes

2020-01-02 04:21:05 -0600 ARYL518

Pose estimation of a small cube shape marker

pose_estimation

1k

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1

answer

no

votes

2020-01-02 05:34:11 -0600 mvuori

About calling the function "displayoverlay" of opencv in Visual Studio 2015

329

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no

answers

-1

votes

2020-01-02 00:10:01 -0600 david cairns

skew angel correction using java [closed]

4k

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1

answer

no

votes

2020-01-02 10:32:52 -0600 JeyP4

How to combine Color conversion(BGRA->BGR) and Remap operations?

213

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no

answers

no

votes

2020-01-01 04:02:01 -0600 Tonifds

Create Structured light scanner

251

views

1

answer

no

votes

2019-12-31 16:22:45 -0600 Tetragramm

MOG2 algorithm info

MOG2

363

views

2

answers

1

vote

2020-01-01 01:26:05 -0600 Sherman

about findcountour

contour

245

views

1

answer

no

votes

2019-12-31 04:30:59 -0600 berak

Android OpenCV reverts to Caffe instead of Tensorflow DNN

android#dnn

1k

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no

answers

no

votes

2019-12-31 03:45:01 -0600 fracv

How to count 2d grid squares using python and opencv?

1k

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no

answers

no

votes

2019-12-30 20:45:29 -0600 supra56

Build OpenCV 4.x for Android with c++_static

build

4k

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1

answer

1

vote

2019-12-30 06:11:12 -0600 berak

Convert a 2D array to Mat (OpenCV) using C++, but the output of the Mat is wrong

3k

views

1

answer

2

votes

2019-12-30 07:19:52 -0600 VectorVP

How to use cudacodec + blobFromImage

221

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no

answers

no

votes

2019-12-30 04:08:36 -0600 bytix

What can recognise handwritten check marks and notes on a survey questionnaire? [closed]

1k

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no

answers

no

votes

2019-12-30 03:48:27 -0600 naveen_s_n

Disabling NEON & VFPv3 in cmake

VFP
arm-neon

578

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no

answers

no

votes

2019-12-30 04:41:01 -0600 GW

How to get daytime of each frame when use cv2.VideoCapture("ip camera") python?

174

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no

answers

no

votes

2019-12-30 00:02:47 -0600 dineshlama

How to find hierarchy of multiple contours

contour

388

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no

answers

no

votes

2019-12-29 23:20:22 -0600 jaylo

OpenCV Blender causes CL_BUILD_PROGRAM_FAILURE

338

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no

answers

no

votes

2019-12-29 10:39:00 -0600 AstroBen

CUDA: Has anyone tried passing GpuMats to other Python CUDA modules?

2k

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no

answers

no

votes

2019-12-29 10:03:51 -0600 Gourav

Difference in output of minAreaRect in python and c++

minAreaRect

143

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no

answers

no

votes

2019-12-29 03:17:11 -0600 dineshlama

Check larges polygon in contour [closed]

contour

29,830 questions

how to resize image without changing dpi ?

cv2.rectangle missing one side

java.lang.UnsupportedOperationException: Mat data type is not compatible: 6[SOLVED]

YOLO ALGORITHM- uniqueness of objects

error: (-215:Assertion failed) !_src.empty() in function 'cvtColor'

Implementing custom non-linear 2D filter in OpenCV

Alternatives to OpenCV VideoCapture? [closed]

Error while implementing the "out of focus deblur tutorial" in java

opencv dnn shows error when use resnet50.cfg from darknet

Creating disparity maps with structured light

Pose estimation of a small cube shape marker

About calling the function "displayoverlay" of opencv in Visual Studio 2015

skew angel correction using java [closed]

How to combine Color conversion(BGRA->BGR) and Remap operations?

Create Structured light scanner

MOG2 algorithm info

about findcountour

Android OpenCV reverts to Caffe instead of Tensorflow DNN

How to count 2d grid squares using python and opencv?

Build OpenCV 4.x for Android with c++_static

Convert a 2D array to Mat (OpenCV) using C++, but the output of the Mat is wrong

How to use cudacodec + blobFromImage

What can recognise handwritten check marks and notes on a survey questionnaire? [closed]

Disabling NEON & VFPv3 in cmake

How to get daytime of each frame when use cv2.VideoCapture("ip camera") python?

How to find hierarchy of multiple contours

OpenCV Blender causes CL_BUILD_PROGRAM_FAILURE

CUDA: Has anyone tried passing GpuMats to other Python CUDA modules?

Difference in output of minAreaRect in python and c++

Check larges polygon in contour [closed]

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