Questions - OpenCV Q&A Forum

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2020-11-18 13:03:14 -0600 Tina J

cv2.error: OpenCV(4.0.0): …(-215:Assertion failed)… ONNXImporter::getLayerParams'

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2020-09-14 21:48:51 -0600 Virtuall Kingg

How many IP cameras can openCV handle for real time processing?

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2020-09-14 02:19:42 -0600 berak

Where to find opencv_createsamples.exe in windows

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2020-09-10 01:13:30 -0600 sturkmen

Replace Color of Components that have specific color and are have transparent pixels as neighbours

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2020-09-04 01:38:48 -0600 Ricki Hutagaol

Emgu Cv Show Black Screen when running [closed]

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2020-03-16 09:09:48 -0600 LBerger

TypeError: Image data of dtype object cannot be converted to float

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2020-03-05 20:17:42 -0600 Eyal321

Removing padding after fft

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2020-03-04 14:49:56 -0600 mvuori

Help with "Undefined-reference" when compiling with CMake for OpenCV & C++ program

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2020-03-01 06:06:15 -0600 berak

This is a code for recognition of faces and attendance marking. I get the following error

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2019-12-26 08:21:42 -0600 supra56

Unable to find and draw biggest contour

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2019-12-17 07:59:08 -0600 kbarni

How to remove the element attached to the image border?

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2019-10-17 08:57:23 -0600 redhwan

does JetsonTX2 support CV.dnn ?

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2019-07-07 00:31:58 -0600 FlorMaye

Problems ChAruCo Camera Calibration

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2019-04-17 08:19:49 -0600 isma

Infrared Image I took outside is completely white, how to fix?

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2019-03-27 04:51:00 -0600 isma

How to calculate correct font scale to fit to the image using putText

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2018-12-17 06:37:57 -0600 berak

compare two faces opencv node js

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2018-12-10 10:35:51 -0600 berak

error in cmake while configuring opencv extra modules path

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2018-11-14 11:38:15 -0600 berak

Compiling 4.0.0.0rc Fails

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2018-11-11 15:15:45 -0600 murtaza-078

Error while running slic.cpp code

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2018-11-06 17:05:07 -0600 ander5991

source code opencv

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2018-10-18 22:20:28 -0600 supra56

Can't detect the circle

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2018-09-11 05:43:45 -0600 kbarni

hardware for opencv

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2018-08-28 14:54:46 -0600 MikeTronix

I have an image with all pixel values 0 i.e black image, i want to access pixels at certain image coordinates more then a 100 and change the value to 1 how can i do this using opencv python and for loops if possible?

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2018-08-06 01:19:52 -0600 mshabunin

Trying to cross compiling OpenCV library for RISCV architecture statically but i am getting errors

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2018-07-27 04:08:29 -0600 berak

I am trying to executing cross compiled c++ program(removeRedEye) in riscv linux,but i am getting errors

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2018-07-27 00:22:34 -0600 berak

I am trying to executing cross compiled (for RISCV) sample c++ program.but i am getting error

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2018-07-25 08:43:01 -0600 sturkmen

point outside image with getPerspectiveTransform

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2018-07-23 04:19:42 -0600 LBerger

I am trying to executing OpenCV application executable in riscv linux but i am getting error "terminate called after throwing an instance of 'cv::Exception'"

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2018-07-20 01:41:17 -0600 berak

I am trying to executing the OpenCV sample c++ program but i am getting error ''undefined reference to `compress'''.

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2018-07-18 02:03:15 -0600 Billa Surendra

88 questions

cv2.error: OpenCV(4.0.0): …(-215:Assertion failed)… ONNXImporter::getLayerParams'

How many IP cameras can openCV handle for real time processing?

Where to find opencv_createsamples.exe in windows

Replace Color of Components that have specific color and are have transparent pixels as neighbours

Emgu Cv Show Black Screen when running [closed]

TypeError: Image data of dtype object cannot be converted to float

Removing padding after fft

Help with "Undefined-reference" when compiling with CMake for OpenCV & C++ program

This is a code for recognition of faces and attendance marking. I get the following error

Unable to find and draw biggest contour

How to remove the element attached to the image border?

does JetsonTX2 support CV.dnn ?

Problems ChAruCo Camera Calibration

Infrared Image I took outside is completely white, how to fix?

How to calculate correct font scale to fit to the image using putText

compare two faces opencv node js

error in cmake while configuring opencv extra modules path

Compiling 4.0.0.0rc Fails

Error while running slic.cpp code

source code opencv

Can't detect the circle

hardware for opencv

I have an image with all pixel values 0 i.e black image, i want to access pixels at certain image coordinates more then a 100 and change the value to 1 how can i do this using opencv python and for loops if possible?

Trying to cross compiling OpenCV library for RISCV architecture statically but i am getting errors

I am trying to executing cross compiled c++ program(removeRedEye) in riscv linux,but i am getting errors

I am trying to executing cross compiled (for RISCV) sample c++ program.but i am getting error

point outside image with getPerspectiveTransform

I am trying to executing OpenCV application executable in riscv linux but i am getting error "terminate called after throwing an instance of 'cv::Exception'"

I am trying to executing the OpenCV sample c++ program but i am getting error ''undefined reference to `compress'''.

I am Trying to cross compiling OpenCV application statically by using following command

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