change the .png for whatever file extension you are using. Are your image greyscale? If not, it might not make sense to backg...

presque 2 ans ago | 0

Alternating up and down in my script to find path through 'maze'
Try this algorithm: Goal:to assign a label to each connected track of 1's on a background of 0's. Procedure: Scan image left t...

presque 2 ans ago | 0

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Submitted

Asteroid, Baseball, etc. (obj mesh) Projected Surface Area
Calculate the projected area into wind axes for an obj (wavefront) that is a convex hull.

How to filter data by date?
My suggestion is to convert all your times to an new variable of time in matlab's datenum format. A datenum is the number of da...

presque 2 ans ago | 0

Plotting a smooth curve

presque 2 ans ago | 1

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Errors with my code
You redefined y to zero it out and at a different dimension than t. Also some typos in the annotation. T1=[0:0.001:2]; Y1=(-1...

presque 2 ans ago | 0

Fourrier transform on image
Here's an example - the grid of features is space every 20 meters, the frequency found at 0.05/m corresponds to the frequency of...

presque 2 ans ago | 0

Axes after 2D fft
Some great online references are in the matlab code. Whenever I post links at the top of an answer, the answer gets flagged as ...

presque 2 ans ago | 1

flip an array with the use of vectors
a=[1 7 5 9 3 2 4 1]; a(3:6) = fliplr(a(3:6));

presque 2 ans ago | 0

readmatrix with numbers and text from .csv file
The problem is your last line has 5 columns. This seems to do what you're asking, and hopefully will be enough to get you start...

presque 2 ans ago | 0

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How do I get only the HR out of this .csv
If you post the file, or at least the first 20 lines or so, it would be easier to say which command is best to use. Generally, ...

presque 2 ans ago | 0

Solved

pressure to dB?
given x ratio of pressure, find corresponding y dB

presque 2 ans ago

Solved

Sum of the Matrix Elements
Add up all the elements in a NxM matrix where N signifies the number of the rows and M signifies the number of the columns. E...

presque 2 ans ago

Solved

Convert a vector into a number
This is a sub problem related to this problem: <http://www.mathworks.com/matlabcentral/cody/problems/621-cryptomath-addition>...

presque 2 ans 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 ...

presque 2 ans ago

Solved

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

presque 2 ans ago

Solved

Unit Matrix
Given n, you should return an n-by-n unit matrix. Example: If input is n=2 then A = [ 1 0 0 1 ] If input ...

presque 2 ans ago

Solved

Add a row of zeros on top of a matrix
Given a matrix, insert a row of zeros as the top row.

presque 2 ans ago

Solved

Remove white space from the string
Remove the white spaces (trailing and leading) from the input variable

presque 2 ans ago

Solved

Is it an Armstrong number?
An Armstrong number of three digits is an integer such that the sum of the cubes of its digits is equal to the number itself. Fo...

presque 2 ans ago

Solved

Given area find sides
In a right angle triangle given area 'A' one arm=x, another arm=2x then find the value of x. For example, area A=400 then ...

presque 2 ans ago

Solved

Replicate elements in vectors
Replicate each element of a row vector (with NaN) a constant number of times. Examples n=2, A=[1 2 3] -> [1 1 2 2 3 3] ...

presque 2 ans ago

Solved

02 - Vector Variables 5
_eVec_ = _Hello_ ( _eVec_ is a string, which is a vector of characters )

presque 2 ans 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...

presque 2 ans ago

How to access folders within a loop
Try this (in absence of the Airport.xlsx files I can't completely test it here) - edit the obsdir back to your folder name where...

presque 2 ans ago | 0

I have a problem with plotting a summation equation, Help me!
Hi. Editing - I had a (3-i) instead of (3+i) in the denominator - it's fixed now: k = 6; f = @(x)sum(sqrt((2*k-3)./((3 + [0:...

presque 2 ans ago | 1

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How can i put this below lines of code in a for loop?
Here's how to do it for png, because that is all I have. Change extension to tif. % Edit this to be your toplevel directory m...

presque 2 ans ago | 1

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How can I store data from an if loop into a 1D vector
This function returns the indices where the peaks for ECG values in time-segments defined by a user-specified threshold functi...

presque 2 ans ago | 0