How to use matlab to draw such a diagram?

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guan wang
guan wang 2023 年 3 月 22 日
コメント済み: guan wang 2023 年 3 月 22 日
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.

回答 (1 件)

Sulaymon Eshkabilov
Sulaymon Eshkabilov 2023 年 3 月 22 日
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 件のコメント
guan wang
guan wang 2023 年 3 月 22 日
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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