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How to use matlab to draw such a diagram?

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guan wang
guan wang el 22 de Mzo. de 2023
Comentada: guan wang el 22 de Mzo. de 2023
This graph is the energy spectrum of wavelet scattering coefficients. How can I draw this graph? How should the energy spectrum of an image be calculated? thank you.

Respuestas (1)

Sulaymon Eshkabilov
Sulaymon Eshkabilov el 22 de Mzo. de 2023
What are your given parameter values and equation?
You can use similar approach as shown in this example:
[x,y]=meshgrid(linspace(0,2*pi));
R = 5;
X = R*cos(x).*sin(y);
Y = R*sin(x).*sin(y);
Z = -R*cos(y);
surf(X,Y,Z)
colormap jet
axis on; shg
view([180 90])
  1 comentario
guan wang
guan wang el 22 de Mzo. de 2023
Thank you.It's very useful to me.
The figure is derived from the Fourier energy spectrum of a certain image.

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