How to overlay randomized point grid on photo?

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Harriet Minc
Harriet Minc on 18 Oct 2017
Commented: Cedric Wannaz on 21 Oct 2017
I need to take a randomized point grid with the code:
x=rand(1,50)*5
y=rand(1,50)*5
scatter(x,y)
And overlay it onto a picture. I am not sure if this can be done or how to do it? Any help would be appreciated!
  1 Comment
Jonathan Chin
Jonathan Chin on 18 Oct 2017
im=imread('peppers.png');
imshow(im);
hold on
x=rand(1,50)*512
y=rand(1,50)*384
scatter(x,y)

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Answers (1)

Cedric Wannaz
Cedric Wannaz on 18 Oct 2017
Edited: Cedric Wannaz on 18 Oct 2017
I = imread( 'MyImage.png' ) ;
x = rand( 1, 50 ) * size( I, 2 ) ;
y = rand( 1, 50 ) * size( I, 1 ) ;
imshow( I ) ;
hold on ;
scatter( x, y ) ;
  1 Comment
Cedric Wannaz
Cedric Wannaz on 21 Oct 2017
Is this answer working for you? If so please [Accept it]. If not, I am happy to provide more information.

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