Display images in real time

Use Observables.jl with GLMakie.jl.

Simple example below:

using GLMakie
using Observables

fig = Figure()
ax = Axis(fig[1,1])

x = Observable(randn(32, 32))
image(x)

for i = 1:10
    x[] = randn(32, 32)
    sleep(0.1)
end
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