Compare differences between MATLAB and python images from the same data -


i ploting same values in python , in matlab ( the data same).

just doing

import scipy.io sio zzz = sio.loadmat(pathtodata) plot(zzz['zzz'][:,0]) #python

in matlab

plot(zzz)        %matlab

i trying matplotlib create image looks same matlab figure, this example.

  • the following images created screen capture avoid post processing of image. made sure both of figures in same size. put 1 next other , created screencapture of them both @ same time

i put lines 1 next other: enter image description here

enter image description here

it bit hard see matlab image more noisy , looks python image after moving average of ( in start of plot)

do have any advice of how make python figure exactly matlab one?

( uploaded the data if interested in experiments )

edit

i tried antialiased = false, results bit better, linewidth bigger no matter how small try (original screencapture )

enter image description here

i think due fact matplotlib uses anti aliasing when producing figure. however, artist property can set:

import matplotlib.pyplot plt import numpy np  x = np.linspace(0, 2*np.pi, 500)  plt.plot(x, np.sin(x), label='with anti-aliasing') plt.plot(x, np.cos(x), antialiased=false, label='without anti-aliasing') plt.legend() plt.show()

result:

enter image description here

zoom on top left corner:

enter image description here

so switching off anti-aliasing filter might similar results matlab version.


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