Questions - OpenCV Q&A Forum

4

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2020-04-08 13:49:51 -0500 berak

openCV function '.read()' return (False, None)

None

8

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1

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2020-04-08 10:32:53 -0500 berak

LSH knnSearch slow in large dataset

8

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2020-04-08 09:47:54 -0500 edif

How to determine and compensate for light falloff during stitching

26

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2020-04-08 07:32:16 -0500 berak

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

darknet

14

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2020-04-08 06:33:09 -0500 berak

convexityDefects errors

14

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-1

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2020-04-08 01:42:27 -0500 Srini9

Suggestion on a usecase

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2020-04-07 23:45:47 -0500 WayneCho

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

imageprocessing

11

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2020-04-07 20:27:50 -0500 Assaf M

Identifying positive pixels after color deconvolution ignoring boundaries

14

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-1

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2020-04-07 15:20:17 -0500 sonam

cv2.error: OpenCV(4.2.0)

2dimage

7

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2020-04-07 09:40:54 -0500 TheCakeLover

hpoints > 0: Error using convexityDefects() [closed]

105

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2020-04-07 09:06:53 -0500 zelda

Android studio: undefined reference to cv::Stitcher

14

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2020-04-07 04:44:43 -0500 gaby

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

19

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2020-04-07 02:26:43 -0500 hamsolo474

contourArea strange behaviour

18

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2020-04-07 01:42:41 -0500 berak

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

12

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2020-04-06 23:30:25 -0500 George_cwg

_MM_PERM_ACBD problem in opencv 4.3.0 compiling

18

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2020-04-06 22:01:23 -0500 LearningCV

training haar cascade with single positive sample

11

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2020-04-06 16:51:53 -0500 becca

Stereo Camera fisheye rectification problem

13

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2020-04-06 14:32:47 -0500 andrei186

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

47

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2020-04-06 14:15:59 -0500 supra56

How to create a Binary Mask for medical images

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2020-04-06 13:06:20 -0500 stefanos.dimos

How to properly estimate the Z rotation using ArUco Markers

38

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-1

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2020-04-06 12:00:46 -0500 anitarentz

I need help to install openCV

opencv#c++#Install

17

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2020-04-06 11:53:53 -0500 kane17752

openCVSharp [closed]

17

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2020-04-06 10:21:59 -0500 Umut

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

c++#opencv#ubuntu

21

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-1

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2020-04-06 10:21:08 -0500 Jack.Reacher

Extract Logo and Text from Visiting Card Image with coordinates

7

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2020-04-06 09:51:17 -0500 GRASBOCK

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

c++#opencv#mingw

22

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2020-04-06 09:22:19 -0500 Pigeon

How to know the orientation of the QR Code?

58

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2020-04-06 09:12:21 -0500 berak

error: (-215:Assertion failed) nelems <= size_t(INT_MAX)*size_t(INT_MAX) in function 'cv::Mat::reserveBuffer'

stereodisparity

18

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2020-04-06 07:09:14 -0500 dorohedoro

Robust OCR on alternating-distance handwritten grades

18

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2020-04-06 05:00:36 -0500 jcb

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

31

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1

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2020-04-06 04:05:57 -0500 berak

32,838 questions

openCV function '.read()' return (False, None)

LSH knnSearch slow in large dataset

How to determine and compensate for light falloff during stitching

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

convexityDefects errors

Suggestion on a usecase

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

Identifying positive pixels after color deconvolution ignoring boundaries

cv2.error: OpenCV(4.2.0)

hpoints > 0: Error using convexityDefects() [closed]

Android studio: undefined reference to cv::Stitcher

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

contourArea strange behaviour

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

_MM_PERM_ACBD problem in opencv 4.3.0 compiling

training haar cascade with single positive sample

Stereo Camera fisheye rectification problem

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

How to create a Binary Mask for medical images

How to properly estimate the Z rotation using ArUco Markers

I need help to install openCV

openCVSharp [closed]

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

Extract Logo and Text from Visiting Card Image with coordinates

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

How to know the orientation of the QR Code?

error: (-215:Assertion failed) nelems <= size_t(INT_MAX)*size_t(INT_MAX) in function 'cv::Mat::reserveBuffer'

Robust OCR on alternating-distance handwritten grades

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

How to use FPS module

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