Answered

MATLAB Coder does not recognize dot notation in struct member assignment

See the article "Name the C Structure Type to Use With a Global Structure Variable" in the MATLAB help documentation. You need ...

MATLAB Coder does not recognize dot notation in struct member assignment

See the article "Name the C Structure Type to Use With a Global Structure Variable" in the MATLAB help documentation. You need ...

alrededor de 2 meses ago | 0

Answered

Implicit casting overhead from real to complex when multiplying two matrices

Multiplying a complex matrix by a real matrix requires fewer calculations so should take less time. Your test is a little too s...

Implicit casting overhead from real to complex when multiplying two matrices

Multiplying a complex matrix by a real matrix requires fewer calculations so should take less time. Your test is a little too s...

alrededor de 2 meses ago | 0

| accepted

Answered

How to change the max pixel value of the image

This is to increase the values of specific values in a matrix. You can probably take it from there: >> >> A = [35 40 45 55...

How to change the max pixel value of the image

This is to increase the values of specific values in a matrix. You can probably take it from there: >> >> A = [35 40 45 55...

alrededor de 2 meses ago | 0

Answered

FFT of a Superposition signal

Try this, and see this article on usage of the FFT to understand how to interpret the results and assign results to frequencies....

FFT of a Superposition signal

Try this, and see this article on usage of the FFT to understand how to interpret the results and assign results to frequencies....

alrededor de 2 meses ago | 0

Answered

enhance image quality for read Barcode

If your camera has autofocus, the reflection off the table below may be confusing it. Place something nonreflective with no hig...

enhance image quality for read Barcode

If your camera has autofocus, the reflection off the table below may be confusing it. Place something nonreflective with no hig...

2 meses ago | 0

Answered

enhance image quality for read Barcode

Can you get a better photo? Can you read the barcode manually from this photo? You can use improfile to get something like thi...

enhance image quality for read Barcode

Can you get a better photo? Can you read the barcode manually from this photo? You can use improfile to get something like thi...

2 meses ago | 0

| accepted

Answered

How can I convert a file format FIG to PCD?

There is a function called pcwrite. The MATLAB documentation has a good article on it.

How can I convert a file format FIG to PCD?

There is a function called pcwrite. The MATLAB documentation has a good article on it.

2 meses ago | 0

| accepted

Answered

Finding an element in table without using if_else condition

You can do some operations on the Table variables to get index vectors: >> Table_A.A ans = 3×1 string array "...

Finding an element in table without using if_else condition

You can do some operations on the Table variables to get index vectors: >> Table_A.A ans = 3×1 string array "...

2 meses ago | 1

| accepted

Answered

How to call c2000 library functions with the S-Function builder?

If you are using mex to compile this C code into a binary for Simulink to use as an S-Function block, you probably need to use t...

How to call c2000 library functions with the S-Function builder?

If you are using mex to compile this C code into a binary for Simulink to use as an S-Function block, you probably need to use t...

2 meses ago | 0

Answered

Customized Library version management

Simulink libraries just have one version number for the whole thing just like Simulink model files. You can not version each bl...

Customized Library version management

Simulink libraries just have one version number for the whole thing just like Simulink model files. You can not version each bl...

3 meses ago | 1

| accepted

Answered

[SOLVED ALREADY] Loop through data struct with variable names

You want to index into the structure array, then pass one of those array elements to the length function: >> S1.E1 = [1 1]; ...

[SOLVED ALREADY] Loop through data struct with variable names

You want to index into the structure array, then pass one of those array elements to the length function: >> S1.E1 = [1 1]; ...

3 meses ago | 0

Answered

Using Matlab to open a text file

Looks like subl is not in your search path. You can use the system command to print out the search path that the MATLAB process...

Using Matlab to open a text file

Looks like subl is not in your search path. You can use the system command to print out the search path that the MATLAB process...

3 meses ago | 0

| accepted

Answered

Embedded coder 'Generate code only' not including toolbox files

If you have some other toolchain to compile the source code, you can locate the file in the MATLAB program files folder and incl...

Embedded coder 'Generate code only' not including toolbox files

If you have some other toolchain to compile the source code, you can locate the file in the MATLAB program files folder and incl...

3 meses ago | 0

Answered

Getting NaN while using the ratio of power and factorial

The factorial function output increases very fast as input increases. See "doc factorial" for details. The output is "inf" for...

Getting NaN while using the ratio of power and factorial

The factorial function output increases very fast as input increases. See "doc factorial" for details. The output is "inf" for...

3 meses ago | 0

Answered

How do I grab all the files with a certain name pattern from several folders?

The dir function will work with wildcard characters: D = dir(fullfile(myFolder, '*grab*'))

How do I grab all the files with a certain name pattern from several folders?

The dir function will work with wildcard characters: D = dir(fullfile(myFolder, '*grab*'))

3 meses ago | 0

Answered

Image correction based on the mesh of projection surface

The image processing toolbox has only more basic geometric transformations, and computer vision has some camera calibration tool...

Image correction based on the mesh of projection surface

The image processing toolbox has only more basic geometric transformations, and computer vision has some camera calibration tool...

3 meses ago | 0

Answered

Video background removal in MATLAB by K-means clustering processing technique

I am not sure if it uses K-means clustering but vision.ForegroundDetector can support that type of application: https://www.m...

Video background removal in MATLAB by K-means clustering processing technique

I am not sure if it uses K-means clustering but vision.ForegroundDetector can support that type of application: https://www.m...

3 meses ago | 0

Answered

Why does my code bug down during while loop?

Have you tried the Profiler tool with your code? This can quickly highlite which parts take the most time. In this case line 2...

Why does my code bug down during while loop?

Have you tried the Profiler tool with your code? This can quickly highlite which parts take the most time. In this case line 2...

3 meses ago | 0

Answered

How to make matlab access two folders for data when separated by date

You can get file dates using the "dir" function or keyword in MATLAB. Does any of this help? >> D = dir D = 105×1 s...

How to make matlab access two folders for data when separated by date

You can get file dates using the "dir" function or keyword in MATLAB. Does any of this help? >> D = dir D = 105×1 s...

3 meses ago | 0

Answered

Getting ginput to read axes on an appdesigner GUI

Here is a previous discussion on this topic: https://www.mathworks.com/matlabcentral/answers/392617-how-can-i-use-ginput-in-a...

Getting ginput to read axes on an appdesigner GUI

Here is a previous discussion on this topic: https://www.mathworks.com/matlabcentral/answers/392617-how-can-i-use-ginput-in-a...

3 meses ago | 0

| accepted

Answered

How do you use parameters with simulink coder?

You can change the parameter configuration using the Model Parameter Configuration dialog like below. But note that code from S...

How do you use parameters with simulink coder?

You can change the parameter configuration using the Model Parameter Configuration dialog like below. But note that code from S...

3 meses ago | 0

Answered

Does Simulink Free Trial Version R2022a include Simulink coder and Embedded coder?

No you will need to request trials for those products separately.

Does Simulink Free Trial Version R2022a include Simulink coder and Embedded coder?

No you will need to request trials for those products separately.

3 meses ago | 0

Answered

Data Type Conversion in simulink

Type "doc fixedt" in MATLAB to get a detailed explanation of the fixed point data types. If I right click on the data type conv...

Data Type Conversion in simulink

Type "doc fixedt" in MATLAB to get a detailed explanation of the fixed point data types. If I right click on the data type conv...

3 meses ago | 0

Answered

How to do +,-,*,/ with one scalar and one matrix(IN GUI)?

Addition and subtraction are the same. You can add or subtract a scalar from a matrix. Adding or subtracting matrices requires...

How to do +,-,*,/ with one scalar and one matrix(IN GUI)?

Addition and subtraction are the same. You can add or subtract a scalar from a matrix. Adding or subtracting matrices requires...

3 meses ago | 0

Answered

extracting road from lidar

Hard to tell without sample images but if the road is consistently a big black thing, use imclose to help make the edges solid a...

extracting road from lidar

Hard to tell without sample images but if the road is consistently a big black thing, use imclose to help make the edges solid a...

4 meses ago | 0

Answered

Divide Image into Overlapping blocks and save it

An image is just a matrix. If you want to save a part, then imwrite(img(1:2084,1:1042), 'file1.jpg', 'jpg'); imwrite(img(1042...

Divide Image into Overlapping blocks and save it

An image is just a matrix. If you want to save a part, then imwrite(img(1:2084,1:1042), 'file1.jpg', 'jpg'); imwrite(img(1042...

4 meses ago | 0

Answered

Detect ColorChecker chart in an image

You could pass a different value for Sensivity to colorChecker. By default it is 0.6. For information on supported color space...

Detect ColorChecker chart in an image

You could pass a different value for Sensivity to colorChecker. By default it is 0.6. For information on supported color space...

4 meses ago | 0

Answered

Parameter Estimation in Simulink

You could look over this example: https://www.mathworks.com/support/search.html/videos/online-parameter-estimation-with-simul...

Parameter Estimation in Simulink

You could look over this example: https://www.mathworks.com/support/search.html/videos/online-parameter-estimation-with-simul...

4 meses ago | 0

| accepted

Answered

How do I get the matrix of gray levels from the "from Video Device" in Simulink

Double click on the block and change the output color space option to "grayscale" if you can. Or, the Computer Vision Toolbox o...

How do I get the matrix of gray levels from the "from Video Device" in Simulink

Double click on the block and change the output color space option to "grayscale" if you can. Or, the Computer Vision Toolbox o...

4 meses ago | 0

Answered

uigetfile in appdesigner freezes MATLAB

uigetfile is supposed to open a file selection dialog box and let the user select a file? Do you not see that dialog box pop up...

uigetfile in appdesigner freezes MATLAB

uigetfile is supposed to open a file selection dialog box and let the user select a file? Do you not see that dialog box pop up...

4 meses ago | 0