Khalid Mahmood
Followers: 0 Following: 0
Coding, simulation and mex functions programming for various problems in Matlab. Especially image processing, computer vision and deep learning
Feeds
提问
Every program in newer versions of Matlab runs slower, Why?
Every program in newer versions of Matlab runs slower and slower. I have measured with external stop watches also. And it does ...
2 years 前 | 1 个回答 | 1
1
个回答Image box or rectangle color
I hope you want this set(gcf,'Units','normalized') im=imread('peppers.png'); imshow(im); k = waitforbuttonpress; rect_pos =...
3 years 前 | 1
| 已接受
Matlab finds webcam, but says after running the code it is invalid
try these 3 commands: 1) clear all 2) imaqreset 3) Then a) cam =webcam b) preview cam
3 years 前 | 1
| 已接受
To find running average using vectorized method
Check this https://www.mathworks.com/matlabcentral/answers/806006-defining-the-mean-of-a-values-inside-a-matrix?s_tid=srchtitle...
3 years 前 | 1
| 已接受
Happy Birthday Animation with changing colors
I hope this will be great example for you function f=Animate(str,chr) %string that rotates along central character if nargin<2...
3 years 前 | 1
| 已接受
Happy Birthday Animation with changing colors
Like Following? function f=Animate(str,chr) %string that rotates along central character if nargin<2 chr='🌺';%🕐🕑🕒🕓🕔🕕🕖🕗🕘 %...
3 years 前 | 1
sum of series. Vectorised (no loop)
% To reduce 2 more lines function s=vsum(n) if nargin<1 s=1; return end if mod(n,2)==0, n=n-1;end s=1+sum(1./[3:2:n] -...
3 years 前 | 1
| 已接受
Mouse events starter program for Matlab gui
I have made a simple figure to detect keyboard and mouse events. It will work as a starter for events proessing on GUI. My code ...
3 years 前 | 1
| 已接受
defining the mean of a values inside a matrix
Further methods 1: movmean(matrix,windowsize) it calculates running mean but considers only windowsize elements examples...
3 years 前 | 1
Serial ports list display
You can easily display ports list in compact format pa=['all Serial Ports' serialportlist]; pav=['available Ports' serialportl...
3 years 前 | 1
| 已接受
I have two plots, I want to take the difference between two plots using histogram function. how can I take difference using both x and y axis
I have created an example for 1D histogram (histogram using single vector), histogram2 (2D histogram using 2 vectors), imhist(hi...
3 years 前 | 1
提问
Mouse Button Press distinction
SelectionType property of figure tells which mouse button was pressed along with modifier (ctrl or shift). Normal: Left Mous...
3 years 前 | 2 个回答 | 1
2
个回答How can I delete the rows if they have a NaN value?
Let Matrix A has NaN values, we want a matrix B which contains all rows of A except which have NaN values function testNaNRemov...
3 years 前 | 1
MATLAB GPU Processing: AMD Radeon
To select an NVIDIA GPU 1) Go to site: https://developer.nvidia.com/cuda-gpus, and select a GPU according to your needs https...
3 years 前 | 1
Date time conversion problem
Don't specify as T19:00:00. Oly T19:00 is enough. Furthermore use T:HH:mmXXX instead of TH:mm:ss following code works fine. a....
3 years 前 | 1
提问
Has some one implemented SiamMask trackers in matlab?
I found matlab more useful than python for simulating, implementing and compiling visual trackers.A lot of useful trackers built...
3 years 前 | 0 个回答 | 0
0
个回答I want to plot from -5 to 5 on the x and y, but I am having trouble. Any help?
%Hope you need this. I mean just plot mesh also %mesh Lim=-5:.5:5; %both x,y have same limits [x y]=meshgrid(Lim); % calcula...
3 years 前 | 1
Sketching a tangent plane to the given equation
Lim=sqrt(5/2); inc=2*Lim/99; %100 incremets [X,Y] = meshgrid(-Lim:inc:Lim); ZFunc= @(x,y) real(sqrt(5-x.*x-y.*y)); Z=ZFunc(X,...
3 years 前 | 1
| 已接受
How to enter negative values and values greater than 9 in input with string.
%for 10 values, while ii<11 is needed whe we start with ii=1, and %string(teste) to convert character array into string clear,...
3 years 前 | 1
| 已接受
Using fsolve to find circle intersection
convert 2 equations into 2 functions F(1),F(2) . This is one way but other ways like F=@x [ eq1; eq2] can also be used. functio...
3 years 前 | 1
Mysterious tangent line on my plots
v(1)=2; %initial v=v0=vi a(1)=9.8; %g n=40; dt=2.5; %use values like dt 0.1, 0.5 1.1,1.5, 2, 2.5, 5 and see the result D=1;r...
3 years 前 | 0
How can I fix this error?
function y=Question5(x) y=[]; rows=size(x,1); y(1,:)=x(1,:); for i=2:rows y(i,:)=x(i,:)-x(1,:); end end
3 years 前 | 1
| 已接受
How can I fix this error?
function y=Question5(x,i) y=[]; if i==1 y=x(1,:); else y=x(i,:)-x(1,:); end end
3 years 前 | 0
How to select complementary elements from a vector?
%Another but lengthy way is as follows: %Vector 1 d = [3 2 1 5 6 7 8 9 0]; %Another vector containing the indices, which must...
3 years 前 | 1
Selecting range of data in a matrix
%Generate M 2784x1 matrix of unformly distributed random intergers ranging from 100 to 9999 M=randi([100 9999],2784,1) rangeA...
3 years 前 | 1
IF statement wrongly checked
clear all %close all, %no need to close all, as nothing was opened by this code.. no figure, port etc f = 17.5*10^9; %same ...
3 years 前 | 1
Why do I receive an error when I try to use my Matrox morphis with the Image Acquisition Toolbox?
Clearly format : RGB32_-1442840129x1515803904 is invalid It must be like RGB32_720x480. But 1442840129x1515803904 is huge Res...
3 years 前 | 0