JAI PRAKASH
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Feeds
Simulink is not opening on ubuntu20.04. Loading indefinitely
Commenting below line in .bashrc solved the problem. #export QT_QPA_PLATFORM=offscreen
1 year ago | 0
| accepted
Question
Simulink is not opening on ubuntu20.04. Loading indefinitely
I was on Matlab 2021a. It was working few days ago. Now matlab is working, but simulink is not opening. I use matlab -deskto...
1 year ago | 2 answers | 0
2
answersQuestion
Vehicle turning with zero steer in Vehicle dynamics blockset. Why?
Hello, I feel vehicle is cornering even at zero steer. For reference, I am using 'Increasing Steering Reference Application'....
2 years ago | 0 answers | 0
0
answersQuestion
How to deploy simulink ROS node which has Acados S function?
I use Generate a Standalone ROS Node from Simulink to deploy a ROS node on Nvidia Jetson Xavier. How to deploy the same node wh...
3 years ago | 1 answer | 0
1
answerSimulink - How to store a scalar in a queue with simulation time?
Here I attach the solution, which my collegue found.
4 years ago | 0
Question
Simulink - How to store a scalar in a queue with simulation time?
I am trying to make a FIFO queue with time-stamps (simulation time). Queue would have a max length. I tried 'to workspace'...
4 years ago | 1 answer | 0
1
answerQuestion
How OpenCV interface can be used with simulink?
I am comfortable to use OpenCV interface with Matlab. But don't know how to use it with Simulink. (For further building). An...
5 years ago | 1 answer | 0
1
answerQuestion
What are compile-time constant?
Hi I want to generate a MEX file for following function function RGB = test(I) RGB = insertShape(I,'circle',[150 280 35],'Line...
5 years ago | 1 answer | 0
1
answerQuestion
Resizing pixels with independent scaling factor?
How can be pixels resized with independent scaling factor? Keeping size of final image same as initial image. e.g. + = ...
6 years ago | 1 answer | 0
1
answerQuestion
How to generate mex for openCV's 'imdecode' for CPU and GPU?
I want to generate mex funtion for 'imdecode'. First for CPU and then for GPU(GPU, if possible). I have already downloaded '...
6 years ago | 2 answers | 0
2
answersQuestion
How to decompress a Jpeg compressed data?
Hi I have JPEG compressed data, as shown in below figure. How original image can be recovered, if Height & Width of original...
6 years ago | 1 answer | 0
1
answerQuestion
After uninstalling CUDA toolkit still MATLAB responds for gpuDevice() !!
Hi Accidently I installed CUDA 10 in ubuntu 16.04. Later on I came to know that matlab supports CUDA 9.1. So i unistalled CUD...
6 years ago | 1 answer | 0
1
answerHow to find subscripts of each element inside many rectangular regions of a matrix?
This is 10x times than arrayfun, still i think can be optimsed. Because no pre-allocation in below code and many other potentia...
6 years ago | 0
Question
How to find subscripts of each element inside many rectangular regions of a matrix?
rowStart = [2; 4; 7]; % a column, may be of more than thousand element rowEnd = [3; 4; 9]; % a column, ...
6 years ago | 1 answer | 0
1
answerQuestion
How to pre-allocate for unknown size vector?
vector = []; for i = 1:1000000 r = randi([1 4],1,1); % a random integer generator between 1 and 4 vector = [vector 1:...
6 years ago | 3 answers | 1
3
answersQuestion
How to find indices of a rectangular region inside big matrix? | Efficiently
How can indices of elements belong to a rectangular region can be found? A = [4 4 4 4 4 4 4 4 ...
6 years ago | 3 answers | 0
3
answersQuestion
How to measure parfeval() execution time?
Is there any way to find how much time parfeval() to complete its execution?
6 years ago | 1 answer | 0
1
answerQuestion
How to run an independent callback function in parallel?
Hi rosinit obj = StoredData; image_sub = rossubscriber('/rgb/image_rect_color/compressed',{@callbackFn3a, obj}); % Indepe...
6 years ago | 0 answers | 0
0
answersQuestion
sort() is not working as mentioned in its doc !!!!!
Hi I want to use 'gpucoder.sort' feature newly included in 2018b. But I am getting below error: I have GPU Coder, C/C++ comp...
6 years ago | 0 answers | 0
0
answersQuestion
Parallelization: Same operation for each layer of RGB image !!
How to improve the way 'zoomIm' is used? [H, W, ~] = size(im); zoomIm = zeros([H W 3], 'uint8'); parfor j=1:3 ...
6 years ago | 0 answers | 1
0
answersHow to publish image to ROS in Simulink
If your matlab image is 'RGB' matrix, you can use following matlab function block + Bus assignment block as shown in figure. ...
6 years ago | 1
Question
How can already used elements be eliminated one by one in 2D matrix while moving upwards? | Efficienlty
Input input = [1 2 0; 2 3 4; 4 5 6]; Output Output= [1 0 0; 2 3 0; ...
6 years ago | 2 answers | 0
2
answersMatlab coder error : This expression has size [:? x 1] ?
I just change Line 12 with zoom = zoom(zoom>0 & zoom<=6); zoomMax = length(zoom); And matlab coder shows no error,...
6 years ago | 0
Question
Matlab coder error : This expression has size [:? x 1] ?
Hi While using matlab coder codegen. I am getting following error. <</matlabcentral/answers/uploaded_files/138494/Capture.J...
6 years ago | 2 answers | 0
2
answersQuestion
How to get timer's UserData?
I am fetching timer's UserData with the below command data = get(timer1, 'UserData'); Problem is, it gives whole userdat...
6 years ago | 2 answers | 0
2
answersQuestion
How to use 'Timer' function to send ROS messages?
fps=50; How can send ROS messages through a publisher continuously.
6 years ago | 1 answer | 0
1
answerQuestion
Why the same function is taking more time after MEX creation?
I want to create mex of 'sort()' funtion. So I build below function function idx = sort2(h) % h is 600x1280 'single' el...
6 years ago | 1 answer | 0
1
answerQuestion
How can MATLAB's buit-in function give output as class single intead of double?
All matlab function gives output as class double. e.g. [I,J] = ind2sub([H W],idx); it is clear that I & J will be int...
6 years ago | 1 answer | 0
1
answerQuestion
Why using .mex created by MATLAB Coder and GPU Coder doesn't give exactly same results?
Hi I created an image processing function and transformed it into .mex to speed-up my process. As I have an Nvidia GPU cuda ...
6 years ago | 0 answers | 0
0
answersQuestion
How to merge a cell 2x60 into 1x60?
<</matlabcentral/answers/uploaded_files/128487/Untitled.png>>
6 years ago | 1 answer | 0
1
answer
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