Questions - OpenCV Q&A Forum

126

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2020-04-04 23:17:01 -0600 AaronB

Converting from OpenCV 3.4 to 4.2 divide issue (different results)

431

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1

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no

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2020-04-05 04:26:13 -0600 berak

VideoCapture from unsupported API

CaptureVideo

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2020-04-05 09:14:55 -0600 Ceranthor

Creating image from polar coordinates

opencv#python

325

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1

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2020-04-05 11:21:18 -0600 simonesimo97

SIFT with very similar objects

1k

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2020-04-05 11:52:16 -0600 andrei186

multiplying homography and image matrices

163

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-1

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2020-04-05 13:25:52 -0600 lencls

How can i make matchtemplate with threshold (java maeven)

164

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2020-04-06 01:37:25 -0600 berak

Checking for Numbers of Blood Vessels Junctions Detected

3k

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2

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no

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2020-04-06 02:48:08 -0600 berak

'NoneType' object is not subscriptable error after read some fames

3k

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1

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no

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2020-04-06 04:05:57 -0600 berak

How to use FPS module

413

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1

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2020-04-06 05:00:36 -0600 jcb

expectation-maximization with Gaussian mixture model on a 1D Histogram

165

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2020-04-06 07:09:14 -0600 dorohedoro

Robust OCR on alternating-distance handwritten grades

492

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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

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2020-04-06 10:21:59 -0600 Umut

How to copy shared OpenCV libraries to cmake's folder?

c++#opencv#ubuntu

149

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-1

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2020-04-06 12:00:46 -0600 anitarentz

I need help to install openCV

opencv#c++#Install

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2020-04-06 13:06:20 -0600 stefanos.dimos

How to properly estimate the Z rotation using ArUco Markers

21k

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1

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no

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2020-04-06 14:15:59 -0600 supra56

How to create a Binary Mask for medical images

524

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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]);

425

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2020-04-06 16:51:53 -0600 becca

Stereo Camera fisheye rectification problem

376

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2020-04-06 22:01:23 -0600 LearningCV

training haar cascade with single positive sample

123

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2020-04-06 23:30:25 -0600 George_cwg

_MM_PERM_ACBD problem in opencv 4.3.0 compiling

1k

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1

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2020-04-07 01:42:41 -0600 berak

Measuring color difference from an ROI within the image using DeltaE color difference?

339

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2020-04-07 04:44:43 -0600 gaby

SIGSEGV in libopencv_core.4.1.dylib called from java, works on one machine but not another [closed]

713

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2020-04-07 09:06:53 -0600 zelda

Android studio: undefined reference to cv::Stitcher

889

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-1

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2020-04-07 15:20:17 -0600 sonam

cv2.error: OpenCV(4.2.0)

2dimage

206

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2020-04-07 20:27:50 -0600 Assaf M

Identifying positive pixels after color deconvolution ignoring boundaries

67

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2020-04-07 23:45:47 -0600 WayneCho

How can I measure the difference between two gradient maps? Is there any metric?

imageprocessing

146

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-1

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2020-04-08 01:42:27 -0600 Srini9

Suggestion on a usecase

1k

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1

answer

2

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2020-04-08 06:33:09 -0600 berak

convexityDefects errors

4k

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no

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no

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2020-04-08 07:32:16 -0600 berak

[Darknet-off topic] Cannot load image "-dont_show" despite patch of images and opencv OK [closed]

darknet

552

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no

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no

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2020-04-08 09:47:54 -0600 edif

29,830 questions

Converting from OpenCV 3.4 to 4.2 divide issue (different results)

VideoCapture from unsupported API

Creating image from polar coordinates

SIFT with very similar objects

multiplying homography and image matrices

How can i make matchtemplate with threshold (java maeven)

Checking for Numbers of Blood Vessels Junctions Detected

'NoneType' object is not subscriptable error after read some fames

How to use FPS module

expectation-maximization with Gaussian mixture model on a 1D Histogram

Robust OCR on alternating-distance handwritten grades

CMake links dynamically even though its supposed to link statically [cross compilation Linux -> Windows]

How to copy shared OpenCV libraries to cmake's folder?

I need help to install openCV

How to properly estimate the Z rotation using ArUco Markers

How to create a Binary Mask for medical images

extract RGB values from ptr[c] = cv::Vec3b(ptr[c][2], ptr[c][1], ptr[c][0]);

Stereo Camera fisheye rectification problem

training haar cascade with single positive sample

_MM_PERM_ACBD problem in opencv 4.3.0 compiling

Measuring color difference from an ROI within the image using DeltaE color difference?

SIGSEGV in libopencv_core.4.1.dylib called from java, works on one machine but not another [closed]

Android studio: undefined reference to cv::Stitcher

cv2.error: OpenCV(4.2.0)

Identifying positive pixels after color deconvolution ignoring boundaries

How can I measure the difference between two gradient maps? Is there any metric?

Suggestion on a usecase

convexityDefects errors

[Darknet-off topic] Cannot load image "-dont_show" despite patch of images and opencv OK [closed]

How to determine and compensate for light falloff during stitching

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