Question

How do I fix this error "Could not commit changes: copy failed: fl:filesystem:SystemError:" please?

When I try to compile and generate a simple typical mex(or lib,dll,exe) function on an ubuntu system, I get the following error,...

3 månader ago | 1 answer | 0

Question

matlab coder:Generating C code for general functions is a big performance problem

To my incomplete knowledge, for matlab built-in function imwarp generated C code/mex file performance is much inferior to the op...

3 månader ago | 1 answer | 0

Question

matlab coder: It's time to generate a modern C++ API

The matlab coder product is very widely used in industry, and since the R2011 version, the generation is still mainly oriented t...

3 månader ago | 1 answer | 0

Answered

rigidtform2d: why not accept double type homogenous matrix?

A rigidtform2d object stores only rotation and translation information, and the shear 0.0004 exists in the T matrix above. sour...

rigidtform2d: why not accept double type homogenous matrix?

A rigidtform2d object stores only rotation and translation information, and the shear 0.0004 exists in the T matrix above. sour...

3 månader ago | 0

| accepted

Question

rigidtform2d: why not accept double type homogenous matrix?

I found out by accident why the function rigidtform2d does not accept a 3 by 3 flush matrix of type double? T = [ 1.0000 0.0...

3 månader ago | 1 answer | 0

Answered

codegen: use -package option error?

The correct approach is for the codegen command to not use the -package option.Then,this bug is easily fixed by manually copying...

codegen: use -package option error?

The correct approach is for the codegen command to not use the -package option.Then,this bug is easily fixed by manually copying...

3 månader ago | 0

| accepted

Question

codegen: use -package option error?

When I use the codegen command line for code generation, I get the following error unexpectedly, which I guess is that the matla...

3 månader ago | 1 answer | 0

Answered

Code generation does not support MATLAB class 'images.internal.coder.imref2d' in this context?

The correct approach is to convert matlab's built-in class object, imref2d, to struct types as output, e.g. these write a conver...

Code generation does not support MATLAB class 'images.internal.coder.imref2d' in this context?

The correct approach is to convert matlab's built-in class object, imref2d, to struct types as output, e.g. these write a conver...

3 månader ago | 0

| accepted

Question

Code generation does not support MATLAB class 'images.internal.coder.imref2d' in this context?

When using an imref2d object as an input or output parameter to an entry function for C/C++ code generation, the following error...

3 månader ago | 1 answer | 0

Question

How do I modify object arrays to support C/C++ code generation?

I want to remove some indexed subscript elements in object arrays, where the element type in arrays is matlab built-in ORBPoints...

3 månader ago | 0 answers | 0

Question

What is the essential difference between matlab's new built-in data type dictionary and the old containers.Map?

matlab has introduced a new data type dictionary since R2022b, which is very good. But as far as I know, since R2008b, there are...

4 månader ago | 1 answer | 0

Answered

Is it similar to the cv::remap reprojection mapping function in opencv in matlab?

After checking, there is an interpolation function in matlab for RGB images/other types of images, currently only implemented in...

Is it similar to the cv::remap reprojection mapping function in opencv in matlab?

After checking, there is an interpolation function in matlab for RGB images/other types of images, currently only implemented in...

4 månader ago | 0

| accepted

Answered

What is the best method to use for interpolating RGB true colour images?

High interpolation efficiency by looking at the internal implementation. %% test performance speed load param.mat % required p...

What is the best method to use for interpolating RGB true colour images?

High interpolation efficiency by looking at the internal implementation. %% test performance speed load param.mat % required p...

4 månader ago | 0

| accepted

Question

The Premultiply Convention in Geometric Transformations does not support C/C++ code generation?

Since version R2022b, the Premultiply Convention has been recommended in priority in Geometric Transformations in the IPL(image ...

4 månader ago | 2 answers | 0

Answered

"arguments ... end" syntax input argument validation module group supports C code generation?

It is good to hear that this syntax supports C/C++ code generation since R2022b .

"arguments ... end" syntax input argument validation module group supports C code generation?

It is good to hear that this syntax supports C/C++ code generation since R2022b .

4 månader ago | 0

| accepted

Question

How to plot the world reference coordinate system of an birdsEye image?

How do I plot the world reference coordinate system for the image in 2D, i.e. the physical coordinate system of the vehicle, wit...

4 månader ago | 0 answers | 0

Answered

Bayesian Deep Learning Convolution Network(BDL)?

Now that TMW is considering integration, the recently released version R2022b has only started to support it!

Bayesian Deep Learning Convolution Network(BDL)?

Now that TMW is considering integration, the recently released version R2022b has only started to support it!

4 månader ago | 0

| accepted

Answered

Is there any guidelines for selecting "undistortImage()" or "undistortFisheyeImage()"?

Which function to use depends on the type of camera reference you have calibrated, cameraIntrinsic or fisheyeIntrinsic,hope it h...

Is there any guidelines for selecting "undistortImage()" or "undistortFisheyeImage()"?

Which function to use depends on the type of camera reference you have calibrated, cameraIntrinsic or fisheyeIntrinsic,hope it h...

4 månader ago | 0

Answered

undistortFisheyeImage function How does it work?

Refer to Scaramuzza fisheye model implemention

undistortFisheyeImage function How does it work?

Refer to Scaramuzza fisheye model implemention

4 månader ago | 0

| accepted

Question

undistortFisheyeImage function How does it work?

How does this function work? According to the documentation, I understand the general process, but I don't know how to convert t...

4 månader ago | 1 answer | 0

Answered

How to get distortion coefficients from fisheye calibration result?

The matlab fisheye camera model uses the "Scaramuzza fisheye model", which is different from OpenCV. However, you can still use ...

How to get distortion coefficients from fisheye calibration result?

The matlab fisheye camera model uses the "Scaramuzza fisheye model", which is different from OpenCV. However, you can still use ...

4 månader ago | 0

Question

How to fit fisheye image distortion coefficients using deep learning?

Knowing the one-to-one correspondence between the coordinates of the many distorted and non-distorted pixel points of a fisheye ...

4 månader ago | 0 answers | 0

Question

How can such a parking space type be defined and simulated in the MATLAB Automated Driving Toolbox?

As far as I know, MATLAB has introduced functions such as parking space and parking lot since version R2021b, which has improved...

5 månader ago | 0 answers | 0

Question

What is the best method to use for interpolating RGB true colour images?

What is the best method to use for interpolating RGB true colour images? It seems that I am not using the following 4 methods ve...

5 månader ago | 1 answer | 0

Question

bug:The built-in functions transformImage and imwarp have invalid projection areas in the image.

When I use the matlab built-in function transformImage or imwarp, when the specified parameter 'outView' of birdsEyeView functio...

5 månader ago | 0 answers | 1

Answered

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...

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...

5 månader ago | 0

Answered

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 ...

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 ...

5 månader ago | 0

Answered

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...

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...

5 månader ago | 0

| accepted

Answered

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...

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...

5 månader ago | 0

| accepted

Question

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_...

5 månader ago | 1 answer | 0