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Khalid Mahmood


Last seen: 13 Tage ago Active since 2021

Coding, simulation and mex functions programming for various problems in Matlab. Especially image processing, computer vision and deep learning

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Question


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 ...

9 Monate ago | 1 answer | 0

1

answer

Answered
Image box or rectangle color
I hope you want this set(gcf,'Units','normalized') im=imread('peppers.png'); imshow(im); k = waitforbuttonpress; rect_pos =...

mehr als ein Jahr ago | 1

| accepted

Submitted


Animate Greetings
This function displays animated greetings of your choice like Happy Birthday, etc. in a rotating marquee.

mehr als ein Jahr ago | 1 download |

Answered
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

mehr als ein Jahr ago | 1

| accepted

Answered
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...

mehr als ein Jahr ago | 1

| accepted

Submitted


Animate Happy Birthday
This function displays a Flower (actually large size character) and a rotating marque message 'Happy Birthday' with changing col...

mehr als ein Jahr ago | 5 downloads |

Answered
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...

mehr als ein Jahr ago | 1

| accepted

Answered
Happy Birthday Animation with changing colors
Like Following? function f=Animate(str,chr) %string that rotates along central character if nargin<2 chr='🌺';%🕐🕑🕒🕓🕔🕕🕖🕗🕘 %...

mehr als ein Jahr ago | 1

Solved


Vector creation
Create a vector using square brackets going from 1 to the given value x in steps on 1. Hint: use increment.

mehr als ein Jahr ago

Solved


Doubling elements in a vector
Given the vector A, return B in which all numbers in A are doubling. So for: A = [ 1 5 8 ] then B = [ 1 1 5 ...

mehr als ein Jahr ago

Solved


Create a vector
Create a vector from 0 to n by intervals of 2.

mehr als ein Jahr ago

Solved


Flip the vector from right to left
Flip the vector from right to left. Examples x=[1:5], then y=[5 4 3 2 1] x=[1 4 6], then y=[6 4 1]; Request not ...

mehr als ein Jahr ago

Solved


Whether the input is vector?
Given the input x, return 1 if x is vector or else 0.

mehr als ein Jahr ago

Solved


Find max
Find the maximum value of a given vector or matrix.

mehr als ein Jahr ago

Solved


Get the length of a given vector
Given a vector x, the output y should equal the length of x.

mehr als ein Jahr ago

Solved


Inner product of two vectors
Find the inner product of two vectors.

mehr als ein Jahr ago

Solved


Arrange Vector in descending order
If x=[0,3,4,2,1] then y=[4,3,2,1,0]

mehr als ein Jahr ago

Answered
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] -...

mehr als ein Jahr ago | 1

| accepted

Solved


Piecewise linear interpolation
Given an Mx2 vector and a row of M-1 integers, output a two column vector that linearly interpolates Y times between each succes...

mehr als ein Jahr ago

Solved


Magic is simple (for beginners)
Determine for a magic square of order n, the magic sum m. For example m=15 for a magic square of order 3.

mehr als ein Jahr ago

Solved


Make a random, non-repeating vector.
This is a basic MATLAB operation. It is for instructional purposes. --- If you want to get a random permutation of integer...

mehr als ein Jahr ago

Solved


Roll the Dice!
*Description* Return two random integers between 1 and 6, inclusive, to simulate rolling 2 dice. *Example* [x1,x2] =...

mehr als ein Jahr ago

Solved


Number of 1s in a binary string
Find the number of 1s in the given binary string. Example. If the input string is '1100101', the output is 4. If the input stri...

mehr als ein Jahr ago

Solved


Return the first and last characters of a character array
Return the first and last character of a string, concatenated together. If there is only one character in the string, the functi...

mehr als ein Jahr ago

Solved


Getting the indices from a vector
This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to <http://www.mathworks....

mehr als ein Jahr ago

Solved


Check if number exists in vector
Return 1 if number _a_ exists in vector _b_ otherwise return 0. a = 3; b = [1,2,4]; Returns 0. a = 3; b = [1,...

mehr als ein Jahr ago

Solved


Swap the input arguments
Write a two-input, two-output function that swaps its two input arguments. For example: [q,r] = swap(5,10) returns q = ...

mehr als ein Jahr ago

Solved


Reverse the vector
Reverse the vector elements. Example: Input x = [1,2,3,4,5,6,7,8,9] Output y = [9,8,7,6,5,4,3,2,1]

mehr als ein Jahr ago

Solved


Length of the hypotenuse
Given short sides of lengths a and b, calculate the length c of the hypotenuse of the right-angled triangle. <<https://i.imgu...

mehr als ein Jahr ago

Solved


Return area of square
Side of square=input=a Area=output=b

mehr als ein Jahr ago

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