Valeria Leto
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Answer 1 question that was unanswered for more than 30 days
Awarded to Valeria Leto on 27 Sep 2021
Accept 5 answers given by other contributors
Awarded to Valeria Leto on 01 May 2021
Feeds
Question
is it possible to define only the sigma value in the edge command?
Hi! I would like to set only the sigma value for the canny and LoG operator. Is it possible? or I must set also the threshoold? ...
2 years ago | 3 answers | 0
3
answersQuestion
is the PSNR parameter good to assess the effect of a filter?
Hi! I have filtered an image with 4 different filters, mean, median, gaussian and a low-pass filter in the freq domain. They are...
2 years ago | 3 answers | 0
3
answersQuestion
how does griddata asses duplicates?
Hi! I would like to understand how griddata asses duplicate point. I opened the function and I found this section: %Need x,y ...
3 years ago | 1 answer | 0
1
answerQuestion
explanation on griddata methods
Hi! I am using griddata to interpolate data. There are many methods available such as linear, cubic, natural. They are all based...
3 years ago | 1 answer | 0
1
answerQuestion
Is it possible to convert a function containing a plot into c++ code?
Hi! Is it possible to convert this function into c++? I would like to open a window in c++ that shows data as if I were in MATLA...
3 years ago | 1 answer | 0
1
answerQuestion
How can I use importdata to import .csv files in a specific folder?
How can I use importdata to import .csv files that are in a specific folder? Thanks
3 years ago | 1 answer | 0
1
answerQuestion
How to save fig in a different folder
Hi! How can I make the folder where I want to save my figure vary? This line works but I would like to create a variable for th...
3 years ago | 1 answer | 0
1
answerQuestion
error using savefig and saveas
Hi guys! I get this error message but I don't understand why. I saw other people asked about it but I have no clue why it happen...
3 years ago | 1 answer | 0
1
answerQuestion
how to get the same contrast in an image?
Hi! I have image o.png which shows a difference in the contrast of the pixels, there is like a "line" that divide two different ...
3 years ago | 2 answers | 0
2
answersQuestion
surf command doesn't plot the value next to NaNs values
Hi! I don't understand why the surf command doesn't plot the value next to NaNs values in the matrix M_array. For example the se...
3 years ago | 2 answers | 0
2
answersQuestion
why does the surf command give me this result?
Hi! I got this image with surf(est,nord,down,I_frame,'EdgeColor','none') where (est,nord) are not regular points. I know for ...
3 years ago | 2 answers | 0
2
answerswarning message using surf
@KSSV I can't load the matrix because the files are too big even in a .zip format
3 years ago | 0
Question
I don't understand how to link the higher level controller of a WIP
Hi! I am trying to simulate a wheeled inverted pendulum with a partial feedback linearization law. I would like to control its v...
3 years ago | 0 answers | 0
0
answersQuestion
warning message using surf
Hi! I get this warning message but I don't know what to do.... Warning: Error updating Surface. Update failed for unknown reas...
3 years ago | 2 answers | 0
2
answersQuestion
don't get what solve should return as solution
Hi! I am new to symbolical equations in MATLAB. I have written the dynamics of a mobile inverted pendulum. The solution of the p...
3 years ago | 1 answer | 0
1
answerQuestion
how to extract the big content of a cell array?
Hi! I have a 2859x1 cell array. In each cell there is a content like this: 1617026479572040798,,0,,0,0,'',25.0,,,[],0,"[76, 7...
3 years ago | 0 answers | 1
0
answersQuestion
how to create and save a georeferenced image in .tif format?
Hi! I have 3 arrays 318x2000: the first one contains the pixel values of a grayscale image I and the others the lat and lon va...
3 years ago | 1 answer | 0
1
answerQuestion
why do I get a strange result with griddata cubic?
Hi! I used the griddata cubic interpolation for the values of an image. I get this image that has a much higher range, from -300...
3 years ago | 1 answer | 0
1
answerQuestion
Error using griddata v4
I get this error using griddata v4. What's the problem? Error in griddata>gdatav4 (line 247) d = abs(xy - xy.');
3 years ago | 0 answers | 0
0
answersQuestion
differences between griddata interpolation methods
Hi! I don't find the official documentation about the differences between the griddata interpolation methods. I have found only ...
3 years ago | 0 answers | 0
0
answersQuestion
someting wrong using interp2
I would like to interpolate the values of an image I. The pixels of I have a specified position in point_seabed_e and point_seab...
3 years ago | 1 answer | 0
1
answerQuestion
How can I plot intensity values given pixel positions?
Hi! I have a matrix with intensity values that are the pixels of an image 318x1000. I have to locate these pixels in fixed pos...
3 years ago | 1 answer | 0
1
answerQuestion
How to add .stl file to a robot?
Hi! I would like to add an .stl file to a robot link created with the robotic toolbox. I checked the Visuals field of the body a...
3 years ago | 0 answers | 0
0
answersQuestion
difference between Geolocated Data grids and Regular data grids
Hi! what's the difference between Geolocated Data grids and Regular data grids? I have to create an image with intensities that ...
3 years ago | 0 answers | 0
0
answersQuestion
How to set the center of mass of a prismatic joint?
Hi! How can I set the Center of mass of a link with a prismatic joint? Is my code correct? %SCARA a1=0.2; a2=0.25; d3=0.2; ...
3 years ago | 1 answer | 0
1
answerQuestion
How to compute Coriolis matrix?
Hi! I am using the Robotic system toolbox and I need to compute the coriolis matrix C(q,dq). There is only a block that computes...
3 years ago | 0 answers | 3
0
answersQuestion
starting condition of feedback scheme in simulink
Hi! How can I set a starting condition as input of my system? The input at t=0 is a constant error vector, but I don't know how...
3 years ago | 1 answer | 0
1
answerQuestion
how to fix ode45 parameters?
Error using derivative Expected state to be finite. Error in jointSpaceMotionModel/derivative (line 251) valida...
3 years ago | 1 answer | 0
1
answerQuestion
how to sum vector with simulink sum block
Hi! I would like to sum the fisrt element of a vector with the first one of another one and so on with the simulik sum block. Ho...
3 years ago | 1 answer | 0
1
answerQuestion
from urdf to simscape model
Hi! Can I import a .urdf file into a simscape model? How?
3 years ago | 1 answer | 0
1
answer
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