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alignment of images - is there no function to align control points?
Your control points do not match up, and the last control point actually does not appear in the distorted image.

2 years ago | 0

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Answered
Wind gust modeling on Simulink...
The Aerospace Blockset has a variety of blocks for wind modeling, and discrete wind gusts per the MIL-F-8785C specification is o...

2 years ago | 0

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How do I extract fixed-width columns from a file that includes empty spaces?
Use the import data tool and configure the delimiter options to use space and treat multiple delimiters as one. You can generat...

2 years ago | 0

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Convert Video to lower quality file
You use VideoWriter to write out to an output video, like in this example: https://www.mathworks.com/help/matlab/import_export/...

2 years ago | 0

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Simulink bus object modification from Matlab script
This article explains some ways of modifying the model workspace. If you have more specific questions please ask them and post ...

2 years ago | 0

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How do i read a line after a word in a csv file
This could be a good example of using splitapply after reading in the entire dataset as a table. See this article: https://w...

2 years ago | 0

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Answered
Number of peaks in the interval
Use MinPeakHeight as the parameter name for findpeaks. You do not show the definition of locsI or psk in your sample code.

2 years ago | 0

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Code generator does not create appropriate .h files for Simulink model
Could the output or example folder be read only?

2 years ago | 0

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How to calculate the total length of all the lines in this image (with grid)?
You can use colorThresholder to help isolate the red pixels and then simply count all of them in the resulting mask image using ...

2 years ago | 0

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Live webcam with histogram ?
Have you tried this example for acquiring an image: https://www.mathworks.com/help/supportpkg/usbwebcams/ug/acquiring-a-singl...

2 years ago | 0

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Answered
Fourier series fit to a periodic function with multiple frequencies
Try looking over the documentation of the fft in MATLAB, along with the examples included there. If you have more specific ques...

2 years ago | 0

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Video Writer for cycle detection
You can use frame2im(getframe(gcf)) to get an image that has the result of imshow and viscircles together.

2 years ago | 0

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Answered
Parallel for loop problem
You may want to review this thread and use parfeval if the partial results option is something you want. https://www.mathwork...

2 years ago | 0

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Risk Matrix in MATlab
This is getting pretty close: %Define risk matrix 1-3 (1 low - 2 medium - 3 severe) C=[2 3 3 3 3 3; 2 2 3 3 3 3; 1...

2 years ago | 1

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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 ...

2 years ago | 0

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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...

2 years ago | 0

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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...

2 years ago | 0

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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....

2 years ago | 0

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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 years ago | 0

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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 years ago | 0

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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 years ago | 0

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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 years ago | 1

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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 years ago | 0

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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...

2 years ago | 1

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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]; ...

2 years ago | 0

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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...

2 years ago | 0

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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...

2 years ago | 0

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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...

2 years ago | 0

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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*'))

2 years ago | 0

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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...

2 years ago | 0