Answered

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...

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...

16 dagen ago | 0

Question

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...

28 dagen ago | 2 answers | 0

Answered

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 ...

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 ...

29 dagen ago | 0

| accepted

Question

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...

29 dagen ago | 0 answers | 0

Answered

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 ...

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 ...

ongeveer een maand ago | 1

Question

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...

ongeveer een maand ago | 0 answers | 0

Question

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...

2 maanden ago | 1 answer | 0

Question

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...

2 maanden ago | 1 answer | 0

Question

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...

3 maanden ago | 1 answer | 0

Question

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...

3 maanden ago | 0 answers | 0

Question

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...

3 maanden ago | 0 answers | 1

Answered

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.

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.

3 maanden ago | 0

Answered

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.

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.

3 maanden ago | 0

Answered

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(...

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(...

4 maanden ago | 0

| accepted

Question

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...

4 maanden ago | 1 answer | 0

Question

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...

4 maanden ago | 3 answers | 0

Question

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...

4 maanden ago | 2 answers | 0

Question

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 ...

5 maanden ago | 1 answer | 0

Question

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...

5 maanden ago | 1 answer | 0

Question

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...

6 maanden ago | 1 answer | 0

Question

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...

6 maanden ago | 2 answers | 0

Question

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...

6 maanden ago | 0 answers | 0

Question

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...

8 maanden ago | 0 answers | 0

Answered

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...

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...

8 maanden ago | 0

Question

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 ...

8 maanden ago | 0 answers | 0

Answered

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...

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...

8 maanden ago | 0

Question

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...

9 maanden ago | 0 answers | 0

Answered

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...

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...

9 maanden ago | 1

Question

Generate an image containing a pattern of random shapes

I would like to generate an image like this containing random shapes where I specify the size range, color, and type of shape su...

9 maanden ago | 1 answer | 0