Problem
isPalindrome
Check if a matrix is a palindrome both vertically and horizontally. You function will return *true* for |[1,2,1]| or |[2,7,2; 6...
9 years ago | 5 | 130 solvers
Solved
Check if a rotated array was originally sorted
Suppose a sorted array is rotated at some pivot unknown to you. For example, |[0 1 2 4 5 6 7]| might become |[5 6 7 0 1 2 4]|. ...
9 years ago
Problem
Check if a rotated array was originally sorted
Suppose a sorted array is rotated at some pivot unknown to you. For example, |[0 1 2 4 5 6 7]| might become |[5 6 7 0 1 2 4]|. ...
9 years ago | 4 | 80 solvers
Solved
Who Has the Most Change?
You have a matrix for which each row is a person and the columns represent the number of quarters, nickels, dimes, and pennies t...
9 years ago
Solved
Find the numeric mean of the prime numbers in a matrix.
There will always be at least one prime in the matrix. Example: Input in = [ 8 3 5 9 ] Output out is 4...
9 years ago
Solved
Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...
9 years ago
Solved
Return the 3n+1 sequence for n
A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...
9 years ago
Solved
Back and Forth Rows
Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 wind back and forth along the rows as shown in the...
9 years ago
Solved
Sum all integers from 1 to 2^n
Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.
9 years ago
Solved
Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...
9 years ago
Solved
Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...
9 years ago
Solved
Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...
9 years ago
Answered
How to perform canny edge detection to detect the head portion and to count the people who are entering into a room?
You said you have already done the background subtraction, and now, you have the foreground image (FG). What you need to do is...
How to perform canny edge detection to detect the head portion and to count the people who are entering into a room?
You said you have already done the background subtraction, and now, you have the foreground image (FG). What you need to do is...
9 years ago | 3
Submitted
Gabor Wavelets
This program generates a custom Gabor filter bank; and extracts the image features using them.
9 years ago | 1 download |
Submitted
Multi-Focus Image Fusion in DCT Domain
Simulation of two multifocus image fusion methods: 1.DCT+Variance 2.DCT+Variance+CV
9 years ago | 1 download |
Submitted
Read YUV Videos and Extract the Frames
Extract Y, U and V components of a YUV 4:2:0 video
9 years ago | 2 downloads |
Submitted
Feature Mutual Information (FMI) metric for non-reference image fusion
FMI is a non-reference image fusion metric based on mutual information of image features.
9 years ago | 1 download |
Solved
Most nonzero elements in row
Given the matrix a, return the index r of the row with the most nonzero elements. Assume there will always be exactly one row th...
9 years ago
Answered
When I am running findpeak it is giving me the following error? Why is there this error? How to modify the code to fix it?
For some reason, you have an odd number of parameters for _uddpvparse_. You'd better put a break point at "findpeaks>parse_inpu...
When I am running findpeak it is giving me the following error? Why is there this error? How to modify the code to fix it?
For some reason, you have an odd number of parameters for _uddpvparse_. You'd better put a break point at "findpeaks>parse_inpu...
9 years ago | 3
| accepted
Solved
Remove any row in which a NaN appears
Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...
9 years ago
Answered
Undefined function or variable 'x'.
You cannot just "run the function" with no input arguments. It has to be called from another function and the X and Y must be gi...
Undefined function or variable 'x'.
You cannot just "run the function" with no input arguments. It has to be called from another function and the X and Y must be gi...
9 years ago | 3
Question
How to get sum of columns even if the matrix is a row vector?
I'd like to get the sum of columns in a matrix, but when the matrix has only one row, the SUM function gives the sum of all elem...
9 years ago | 1 answer | 3
1
answerSolved
Weighted average
Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...
9 years ago
Solved
Create times-tables
At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...
9 years ago
Solved
Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...
9 years ago
Solved
Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...
9 years ago
Solved
Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...
9 years ago
Solved
Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...
9 years ago
Solved
Determine if input is odd
Given the input n, return true if n is odd or false if n is even.
9 years ago