How to create a video from a 3d heat map in Python?

Asked Dec 09 '20 at 17:03

Active Dec 09 '20 at 17:23

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I have a 3D numpy array x of size (100,64,64) where it contains 100 consecutive 64 by 64 2D array. I want to create a video of the heat maps of these 100 different matrices. How can I do this I python?

I know that I can create each heat map image by the following code:

figure, axes = plt.subplots()
c = axes.pcolormesh(x[i])
figure.colorbar(c)
plt.show()

where i is a number between 0 and 99. How can I create a video from these 100 consecutive images?

edited Dec 09 '20 at 17:23

Vlad Havriuk

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asked Dec 09 '20 at 17:03

K.N

A simple way i can think of is save all the 100 as images. combine them to create a gif. – Equinox Dec 09 '20 at 17:09
Thre are plenty of libraries you can do this like ffmpeg or even opencv. – Ευάγγελος Γρηγορόπουλος Dec 09 '20 at 17:11
@venky__ Thanks, that's a good idea. But maybe there exists a way to do it by code! – K.N Dec 09 '20 at 17:12
@ΕυάγγελοςΓρηγορόπουλος Could you please go more in detail? And examples? – K.N Dec 09 '20 at 17:12
@b.j https://stackoverflow.com/questions/10429556/animate-quadratic-grid-changes-matshow https://stackoverflow.com/questions/39472017/how-to-animate-the-colorbar-in-matplotlib – Equinox Dec 09 '20 at 17:53

How to create a video from a 3d heat map in Python?

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