Frage

"The handle is invalid" when running an exe
I would like to run an executable from the Matlab command line. However when I try system('MyProgram.exe') I get the error, U...

etwa 5 Jahre vor | 1 Antwort | 0

1

Antwort

Beantwortet
How can I move my MATLAB Path from my old version of MATLAB over to a new version?
Upgrading to R2019b from R2019a, I copied my personal directories into the new pathdef.m file using the R2019b matlab editor and...

etwa 5 Jahre vor | 0

Frage

How to match an image subset in an image?
Let's say I have image #1, and a second smaller image #2 containing some of the pixels from image #1. The pixels in image #2 wer...

etwa 5 Jahre vor | 2 Antworten | 0

2

Antworten

Beantwortet
How to match an image subset in an image?
This is slow (15 seconds on my machine) but it seems to return the expected location, % Create a mask for selected pixels in ...

etwa 5 Jahre vor | 0

| akzeptiert

Frage

Import a Photoshop selection into Matlab
Let's say I have an image that I open in Photoshop, and I make a selection of a region, for example with the lasso tool. I would...

etwa 5 Jahre vor | 0 Antworten | 0

0

Antworten

Beantwortet
Intensity profile line with interpolation
You can specificy the number of points, n, in improfile and also choose the interpolation method such as bicubic (avoid nearest ...

etwa 5 Jahre vor | 2

Beantwortet
how to get matlab 2019b
Now it's out; get it here.

etwa 5 Jahre vor | 1

Frage

Excluding Hough transform artifacts at 45 and -45 degrees
I am following steps in this example to find lines in my image, which contains a lot of nearly-horizontal lines. The Hough trans...

etwa 5 Jahre vor | 1 Antwort | 0

1

Antwort

Frage

How to check if one of output variables is not called
If I have a function which can return multiple outputs, how can I tell from inside the function that some of the output variable...

mehr als 5 Jahre vor | 1 Antwort | 0

1

Antwort

Frage

How to loop through an unknown number of matrix dimensions?
I would like to loop through all dimensions of a n-dimensional matrix, but the matrix dimensions are unknown beforehand. Below i...

mehr als 5 Jahre vor | 1 Antwort | 0

1

Antwort

Frage

How to make 'far away' markers appear smaller (perspective)
To make it easier to visually interpret 3D data when shown on a 2D surface like the computer screen, I would like to plot data s...

mehr als 5 Jahre vor | 1 Antwort | 0

1

Antwort

Frage

Rationale for functions going into Computer Vision vs. Image Processing toolboxes
I am curious about the thought process is for deciding if a builtin function belongs in the Computer Vision vs. Image Processing...

mehr als 5 Jahre vor | 0 Antworten | 0

0

Antworten

Frage

Why all Matlab windows blank and unresponsive?
Today I was coding in Matlab then went to lunch. When I returned, all the Matlab windows (editor, command window, 2 figure windo...

mehr als 5 Jahre vor | 0 Antworten | 1

0

Antworten

Beantwortet
What are the capabilities of the MATLAB Support Package for Parrot drones? How is it different from the already existing Simulink Support Package?
Beware to anyone considering the Parrot Mambo FPV or Bebop: both are discontinued, see here.

mehr als 5 Jahre vor | 0

Beantwortet
Which drones are supported by the MATLAB Support Package for Parrot Drones?
Beware to anyone considering the Parrot Mambo FPV or Bebop: both are discontinued, see here.

mehr als 5 Jahre vor | 0

Beantwortet
Convert matrix of RGB double values to image
I just realized the following works, but please let me know if I am losing information by converting to uint8, figure; imshow(...

mehr als 5 Jahre vor | 0

| akzeptiert

Frage

Convert matrix of RGB double values to image
I have a matrix which contains RGB values which range from 0 to 1. I would like to turn it into an image, but if I use uint8 the...

mehr als 5 Jahre vor | 1 Antwort | 0

1

Antwort

Frage

Other drones besides Parrot Mambo FPV
I am looking to buy a camera drone and process the images in Matlab. Since this is new to me, I would like easy integration with...

mehr als 5 Jahre vor | 4 Antworten | 0

4

Antworten

Frage

Formatted string plus list of numbers using sprintf
I would like to display comma-separated records like the following, Record1,2,8,3,5,2,6,3,7,7,7 Here's my attempt, but is ther...

mehr als 5 Jahre vor | 2 Antworten | 0

2

Antworten

Frage

In evaluating a neural net, should NMSE be based only on test subset of data?
In answers like this, Greg Heath suggests using the normalized mean square error, NMSE, to compare the performance of different ...

mehr als 5 Jahre vor | 1 Antwort | 0

1

Antwort

Frage

How to work with function inputs which are structures with different fields
I have a function. The inputs are multiple structures which have some of the same fields but also some different fields. I may p...

mehr als 5 Jahre vor | 1 Antwort | 0

1

Antwort

Frage

Solve an overdetermined problem with lsqlin
I am having trouble formatting the inputs to lsqlin. I would like to solve for x in Cx=d, where C is 100 by 5 and d is 100 by 10...

mehr als 5 Jahre vor | 1 Antwort | 0

1

Antwort

Frage

How to set disableDefaultInteractivity for all axes?
In Matlab 2018b and later, the cursor is set to automatically interact with the plot. This messes up my plots (accidentally movi...

mehr als 5 Jahre vor | 4 Antworten | 2

4

Antworten

Frage

How to capture many warnings at startup
All my mfiles on my path have gotten accidentally relocated on my computer, so that now when I start Matlab, I get warnings like...

mehr als 5 Jahre vor | 0 Antworten | 0

0

Antworten

Frage

How to tell how when an executable was first run? (Imposing a 30-day demo period)
I made an executable of some Matlab code using the Complier. I would like the executable to stop working after a 30-day demo per...

fast 6 Jahre vor | 0 Antworten | 0

0

Antworten

Beantwortet
griddata interpolation just within a certain distance
One option might be to use objective mapping such as Kirill Pankratov's implementation objmap (described here, code here). You w...

fast 6 Jahre vor | 0

Frage

Seeking faster objective mapping of noisy, irregularly spaced data
If you have noisy data sampled at irregular x,y locations, you can use objective mapping to make a smooth map of the results. I ...

fast 6 Jahre vor | 0 Antworten | 0

0

Antworten

Beantwortet
griddata not creating a smooth interpolation
You may want to try an outside function, objmap, which lets you choose how smooth the map is in x and y, and how much error to a...

fast 6 Jahre vor | 0

Frage

Best Matlab file format for input into a RIP
I am creating an image in Matlab that I would like to print on a large-format printer that has a RIP (Raster image processor). T...

fast 6 Jahre vor | 0 Antworten | 0

0

Antworten

Beantwortet
generating CIELab Image
Here is an example of how to write a tiff file containing 3 known Lab values. As a check, open the tiff file in Photoshop: the d...

fast 6 Jahre vor | 1