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How to Return a Opencv image cv::mat to Matlab with the Mex C++ API
perhaps these can help you if you use MATLAB2022a or later. uchar *data= openCvImage.data; matlab::data::TypedArray<uint8_t> Y...

más de 3 años hace | 0

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How to Return a Opencv image cv::mat to Matlab with the Mex C++ API
you can use opencv ptr pointer to convert cv::Mat / matlab matrix each other, for example, Matlab matrix conert to opencv Mat ...

más de 3 años hace | 0

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enhancement: build-in function "detectCheckerboardPoints" unsatisfactory corners results
I currently use Mex C++ available relatively easy to use opencv function to find the corner point, the following is the referenc...

más de 3 años hace | 0

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How can I compile and link static libraries from the mingw64 compiler on a windows system using the mex command with the suffix file as ".a"?
when "libopencv_world440.dll.a" copied to matlab's current working directory，then I was able to pass and run the Mex file succes...

más de 3 años hace | 0

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How can I compile and link static libraries from the mingw64 compiler on a windows system using the mex command with the suffix file as ".a"?
SYSTEM: Windows10 21H2 Matlab VERSION: R2022a Complier: mingw64 Compile Error: the compiler reports an error that "libopencv_...

más de 3 años hace | 1 respuesta | 0

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enhancement: build-in function "detectCheckerboardPoints" unsatisfactory corners results
When I did the corner detection on a fisheye image, no matter how I adjusted the parameters and thresholds（HighDistortion，MinCor...

más de 3 años hace | 1 respuesta | 0

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Respondida
write string in text file
hi, if you use latest matlab 2022a， you can use new matlab build-in function WRITELINES -------------------------Off-topic inte...

más de 3 años hace | 2

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How to write strings and numbers to a text file
hi, if you use latest matlab 2022a， you can use new matlab build-in function WRITELINES -------------------------Off-topic inte...

más de 3 años hace | 0

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How do you define road surface marking contours in a scene, such as pavements, speed bumps, arrow markings in automate driving toolbox?
How do you define road surface marking contours such as pavements, speed bumps, arrow markings in Cuboid Scenario Simulation sce...

más de 3 años hace | 0 respuestas | 0

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In 3D plot, how is the image displayed on a specific 3D spatial plane?
I am trying to display my image on a certain plane in 3D plot space, for example by displaying one of matlab's own images "peppe...

más de 3 años hace | 2 respuestas | 0

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plotting a plane in three dimensions including data points
https://www.mathworks.com/matlabcentral/answers/101174-how-can-i-generate-a-plane-surface-in-matlab repeated question. -------...

más de 3 años hace | 1

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What toolboxs do you have in mind that you find most valuable/not valuable?
In the field of image processing/computer vision/AI, the toolboxes that I personally find most valuable are： image processing t...

más de 3 años hace | 0

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What toolboxs do you have in mind that you find most valuable/not valuable?
MathWorks has regularly released 2 new versions each year since 2006, with around 3 new toolboxs released with each new version,...

más de 3 años hace | 1 respuesta | 0

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In 3D plot, how do I set the vertical axis to be y-axis down, z-axis forward and x-axis right?
My hybrid 3D curves and images were drawn together, and I initially succeeded in drawing the result I wanted below, but the only...

más de 3 años hace | 0 respuestas | 1

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How can I export a scenario containing a parkingLot to xml format or OPENSCENARIO to save the map?
As far as I know, TMW has introduced parkingLot to drivingScenario since 2021b, but this type “parkingLot” of scenario export to...

más de 3 años hace | 1 respuesta | 0

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How do I solve for the coordinates of the vertices of a Trirectangular Tetrahedron using the symbolic toolbox?
After experimentation, the coordinates of the base triangle BCD are solved indirectly by solving for the coordinates of the orth...

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How do I solve for the coordinates of the vertices of a Trirectangular Tetrahedron using the symbolic toolbox?
The coordinates of the three points on the base of a right-angled tetrahedron ABCD (Trirectangular Tetrahedron: a tetrahedron wi...

más de 3 años hace | 1 respuesta | 0

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Respondida
Using C++ Mex Function how to get std::string argument?
matlab code input1 = "string1"; input2 = "string2"; myMexFunction(input1,input2); mex c++ code using namespace matlab::data...

más de 3 años hace | 0

Pregunta

what's the difference between these matlab data API strings functions?
" matlab::data::MATLABString" ,"matlab::data::String", "matlab::engine::String","factory.createArray<MATLABString>" ... have som...

más de 3 años hace | 1 respuesta | 1

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mex compilation not working?
I have a very simple C++ program "readBinFile.cpp" for reading the binary file bin, but mex compiles with an error.How do I fix ...

más de 3 años hace | 1 respuesta | 0

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undistortFisheyePoints function How does it work?
after i look at undistortFisheyPoints internal implementation and expermient, it turns out the following implementation. funct...

más de 3 años hace | 0

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How can the parameters of the calibrated fisheye camera model in matlab and opencv be converted to each other?
as far as i know, Computer Vision Toolbox calibration algorithm uses the fisheye camera model proposed by Scaramuzza , while op...

más de 3 años hace | 0 respuestas | 2

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drivingScenarioDesigner can't dynamic show 3D UnrealEngine ego vhicle scence?
when i contruct driving scenario programmatically, and then import into the drivingScenarioDesigner ,chasePlot 3d dynamic simula...

más de 3 años hace | 0 respuestas | 0

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how to import drivingScenario object into DrivingScenarioDesigner?
I construct "drivingScenario" object by drivingScenario function programmatically, then i add some actors in it, however, i can'...

más de 3 años hace | 1 respuesta | 0

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How to create bird's Eye View Image
please make sure your camera intrinsic matrix is correct and your video frame is always match your extrinsic params(mounting hei...

más de 3 años hace | 0

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Why is imwarp not getting the birdsEyeView image I'm expecting?
After my personal experiments, imwarp by default transforms the whole image, if you need to transform a local ROI image, you nee...

más de 3 años hace | 0

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Why is imwarp not getting the birdsEyeView image I'm expecting?
I want to do a birds eye image conversion on a monocular car camera image, I have made some adaptations based on the official "b...

más de 3 años hace | 1 respuesta | 0

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Why do vehichleToImage and worldToImage results not match?
After trying to experiment, I now have a full grasp of the problem and its internal implementation. I wrote a simple matlab func...

más de 3 años hace | 0

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matlab hardwareManager support mobile phone?
as far as i know , matlab mobile product is a independent toolbox from hadware manager, i try to use mobiledev to create a conne...

más de 3 años hace | 0 respuestas | 0

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“chasePlot” doesn't show ego vehicle
why the following code did not show egovhicle? I try to set chasePlot propertites ViewLocation to larger than default,but it sti...

más de 3 años hace | 1 respuesta | 0

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