Hassan Javaid
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Professional Interests: Control Design, Image Processing
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Question
Finding, accessing and replacing specific pixel values in image?
I am working on a task and need help in syntax for finding specific pixel values,then accessing them and finally replace them. ...
ungefär 8 år ago | 1 answer | 0
1
answerQuestion
Detection problem in a video for hand detection?
I'm doing hand detection and tracking using skin color method. I'm not using Viola-Jones method as it requires training. The pro...
ungefär 10 år ago | 1 answer | 0
1
answerSolved
Which doors are open?
There are n doors in an alley. Initially they are all shut. You have been tasked to go down the alley n times, and open/shut the...
mer än 10 år ago
Solved
Return a list sorted by number of occurrences
Given a vector x, return a vector y of the unique values in x sorted by the number of occurrences in x. Ties are resolved by a ...
mer än 10 år ago
Solved
Reverse Run-Length Encoder
Given a "counting sequence" vector x, construct the original sequence y. A counting sequence is formed by "counting" the entrie...
mer än 10 år ago
Solved
Making change
Given an amount of currency, return a vector of this form: [100 50 20 10 5 2 1 0.5 0.25 0.1 0.05 0.01] Example: Input a = ...
mer än 10 år ago
Solved
Solve the Sudoku Row
*Description* A simple yet tedious task occurs near the end of most Sudoku-solving algorithms, computerized or manual. The ta...
mer än 10 år ago
Solved
Sorted highest to lowest?
Return 1 if the input is sorted from highest to lowest, 0 if not. Example: 1:7 -> 0 [7 5 2] -> 1
mer än 10 år ago
Solved
Make one big string out of two smaller strings
If you have two small strings, like 'a' and 'b', return them put together like 'ab'. 'a' and 'b' => 'ab' For extra ...
mer än 10 år ago
Solved
De-dupe
Remove all the redundant elements in a vector, but keep the first occurrence of each value in its original location. So if a =...
mer än 10 år ago
Solved
Counting Money
Add the numbers given in the cell array of strings. The strings represent amounts of money using this notation: $99,999.99. E...
mer än 10 år ago
Solved
Balanced number
Given a positive integer find whether it is a balanced number. For a balanced number the sum of first half of digits is equal to...
mer än 10 år ago
Solved
Replace NaNs with the number that appears to its left in the row.
Replace NaNs with the number that appears to its left in the row. If there are more than one consecutive NaNs, they should all ...
mer än 10 år ago
Solved
Bottles of beer
Given an input number representing the number of bottles of beer on the wall, output how many are left if you take one down and ...
mer än 10 år ago
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...
mer än 10 år ago
Solved
Remove all the consonants
Remove all the consonants in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill'; Output s2 is 'a ...
mer än 10 år ago
Solved
Quote Doubler
Given a string s1, find all occurrences of the single quote character and replace them with two occurrences of the single quote ...
mer än 10 år ago
Solved
Pangrams!
A pangram, or holoalphabetic sentence, is a sentence using every letter of the alphabet at least once. Example: Input s ...
mer än 10 år ago
Solved
radius of a spherical planet
you just measured its surface area, that is the input.
mer än 10 år ago
Solved
Find the longest sequence of 1's in a binary sequence.
Given a string such as s = '011110010000000100010111' find the length of the longest string of consecutive 1's. In this examp...
mer än 10 år ago
Solved
Roll the Dice!
*Description* Return two random integers between 1 and 6, inclusive, to simulate rolling 2 dice. *Example* [x1,x2] =...
mer än 10 år ago
Solved
Find the alphabetic word product
If the input string s is a word like 'hello', then the output word product p is a number based on the correspondence a=1, b=2, ....
mer än 10 år ago
Solved
Binary numbers
Given a positive, scalar integer n, create a (2^n)-by-n double-precision matrix containing the binary numbers from 0 through 2^n...
mer än 10 år ago
Solved
Pascal's Triangle
Given an integer n >= 0, generate the length n+1 row vector representing the n-th row of <http://en.wikipedia.org/wiki/Pascals_t...
mer än 10 år 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 = ...
mer än 10 år ago
Solved
Bullseye Matrix
Given n (always odd), return output a that has concentric rings of the numbers 1 through (n+1)/2 around the center point. Exampl...
mer än 10 år ago
Solved
Cell joiner
You are given a cell array of strings and a string delimiter. You need to produce one string which is composed of each string fr...
mer än 10 år ago
Solved
Too mean-spirited
Find the mean of each consecutive pair of numbers in the input row vector. For example, x=[1 2 3] ----> y = [1.5 2.5] x=[1...
mer än 10 år ago