How to find euclidean distance

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aarti sawant
aarti sawant il 20 Gen 2014
Commentato: William il 19 Mag 2023
Plz help me to find euclidean distance between two pixels within same image without using direct matlab command
  2 Commenti
Walter Roberson
Walter Roberson il 20 Gen 2014
What is a "direct MATLAB command"? Even
3 + 5
is considered a command and invokes a MATLAB function ("plus")
Fahim Ahmed
Fahim Ahmed il 23 Feb 2020
i guess he meant a matlab in-built command

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David Sanchez
David Sanchez il 20 Gen 2014
pix_1 = [p11,p12];
pix_2 = [p21,p22];
distance = sqrt( (p21-p11)^2 + (p22-p12)^2 );
  10 Commenti
Walter Roberson
Walter Roberson il 21 Gen 2014
bwdist() does not compute distance between millions of points. bwdist() finds the points that are not part of objects, and calculates the distance from each point to the closest point that is part of some object.
If you want to operate on multiple points, then the small change to the formula already given is
distance = sqrt( (p21-p11).^2 + (p22-p12).^2 );
where the variables given there are all vectors.
If you want to calculate the distance of each point to every other point then you can use pdist() from the Stats toolbox.
William
William il 19 Mag 2023
Doesn't the dist(W,P) function also help with this?

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Più risposte (1)

Geetika
Geetika il 21 Gen 2014
if you have two vectors with any number of point, for instance, x1=[1 2 3 4 5] and x2=[2 3 4 5 6], then Euc_dist = norm( x1 - x2 ) ;

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