Create a image that goes from white to black

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Julen Vicente Pipaon 2022-10-31

关闭： Julen Vicente Pipaon 2022-10-31

Hi everyone.

I want to create an image that have white in the middle and while it goes to the sides it gets darker.

An image like this but with variable rows and colums.

I have try whit this:

theta = linspace(0, 2*pi, 256);
I = repmat((-cos(theta) + 1)/2, [256 1]);
h = imshow(I); 

But i don't know how to change its size.

KSSV 2022-10-31

What do you meanby changing size? You can play around with his right?

n = 256 ;   % change this 
theta = linspace(0, 2*pi,n);

Yep you're rigth.

I get it now.

%Change rows

n = 1500 ; % change this

theta = linspace(0, 2*pi,n);

%Change colums

n1=1000 ; %Change this

I = repmat((-cos(theta) + 1)/2, [n1 1]);

h = imshow(I);

Thanks for answering.

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