102 total contributions since 2013

Professional Interests: Signal Processing

Question

Need help in analyzing image planes

% CODE 1 % Read RGB image x = imread('Lena.jpg'); rPlane = x(:,:,1); imshow(rPlane) % Displays Red Plane in Lena.jpg...

4 years ago | 1 answer | 0

Answered

Cell Arrays to string

cellData = {'Matlab','is','a','high','level','programming','language'}; % Cell array combinedString = []; for i ...

Cell Arrays to string

cellData = {'Matlab','is','a','high','level','programming','language'}; % Cell array combinedString = []; for i ...

5 years ago | 0

Question

Grayscale, monochrome, binary image in matlab

In Matlab, 1. An 8-bit gray scale image has pixel values ranging from 0 to 255. The pixel depth may vary (16-bit, 32-bit, etc...

5 years ago | 1 answer | 1

Question

I have an array of length 256. It has either 0's and 1's of type uint8. I would like to concatenate it so that it occupies less memory and then recover the original array back. please check the eaxample

x = [1 0 1 1 1 0 0 1...........1] % uint8. length = 256. size = 256*8 = 2048 bytes xbin = 1011100...........1 % ...

5 years ago | 2 answers | 0

Question

In an array of numbers (0 to 255 of data type uint8), if any number occurs more than 3 times, I would like to insert number '255' (uint8) in between the array and return the position where '255' was inserted. Can somebody please help me?

*Example:* input = [1 255 0 0 0 9 9 9 1 6 6 6 6 6 6 1]; _% array of numbers (uint8)_ output = ...

5 years ago | 1 answer | 0

Solved

Is my wife right? Now with even more wrong husband

Again, as in "Is my wife right?" ( <http://www.mathworks.com/matlabcentral/cody/problems/149-is-my-wife-right> ), answer 'yes' r...

6 years ago

Solved

Generate a NaN...on purpose

The goal is to create a function that will return a single "NaN" without using the nan function. I am interested to see how many...

6 years ago

Solved

Output any real number that is neither positive nor negative

Output any real number that is neither positive nor negative

6 years ago

Solved

Say something funny

Say something funny, or not. Your solution will be (fully automatically and objectively) scored based on how clever or funny ...

6 years 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...

6 years ago

Solved

sum of non-primes

The sum of the non-primes below 10 is 1+4+6+8+9+10=38 Find the sum of all the non-primes below the input, N.

6 years ago

Solved

Replace multiples of 5 with NaN

It is required to replace all values in a vector that are multiples of 5 with NaN. Example: input: x = [1 2 5 12 10 7] ...

6 years ago

Solved

Do you like your boss?

Do you like your boss? Answer can be any string! For example: Boss = 'Do you like your boss?'; Output = 'yes' or ...

6 years ago

Solved

Maximum value in a matrix

Find the maximum value in the given matrix. For example, if A = [1 2 3; 4 7 8; 0 9 1]; then the answer is 9.

6 years ago

Solved

Find the hypotenuse

Given a and b (the two sides of a right-triangle), find c, the hypotenuse.

6 years ago

Solved

Replace Vector Elements

Replace all elements in a vector which are equal to or smaller than zero with 0.1. Example: A = [1 2 3 -1 0 2 -3 -80]; ...

6 years ago

Solved

Add two numbers

Calculate the sum of two numbers. Example input = [2 3] output = 5

6 years ago

Solved

Create a square matrix of multiples

Given an input, N, output a matrix N x N with each row containing multiples of the first element of each row. This also applies...

6 years ago

Solved

Back to basics 7 - Equal NaNs

Covering some basic topics I haven't seen elsewhere on Cody. Given 2 input variables, output true if they are equal, false ot...

6 years ago

Solved

Back to basics 23 - Triangular matrix

Covering some basic topics I haven't seen elsewhere on Cody. Given an input matrix, return a matrix with all elements above a...

6 years ago

Solved

Roll the Dice!

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

6 years ago

Solved

Right and wrong

Given a vector of lengths [a b c], determines whether a triangle with those sides lengths is a right triangle: <http://en.wikipe...

6 years ago

Solved

Back to basics 6 - Column Vector

Covering some basic topics I haven't seen elsewhere on Cody. Given an input vector, output true or false whether it is a colu...

6 years ago

Solved

Set the array elements whose value is 13 to 0

Input A either an array or a vector (which can be empty) Output B will be the same size as A . All elements of A equal to 13...

6 years ago

Solved

Whether the input is vector?

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

6 years ago

Solved

Arrange vector in ascending order

Arrange a given vector in ascending order. input = [4 5 1 2 9]; output = [1 2 4 5 9];

6 years ago

Solved

Rotate a Matrix by 90 degrees

Rotate a Matrix by 90 degrees Example: If the input is: X = 1 2 3 4 5 6 7 8 9 ...

6 years ago