Getting proper x,y axis values

[pyhill00]

Why? Normally axis labels indicate range with maybe some subdivisions to give approximate value. If you want the real value you click on the plot.

It seems I got the axes right but now the points are not showing up. Do you know whats wrong with my code here?

from scipy.fft import fft2, fftshift
import numpy as np
import matplotlib.pyplot as plt
from skimage.filters import window
from scipy.fftpack import fftfreq


k = np.linspace(0,4.76*10,2400)
kx,ky = np.meshgrid(k, k)
x1 = 0.3
y1 = 0.4
x2 = 0.3
y2 = 1

z = 0.05*np.cos(2*np.pi*kx*x1 + 2*np.pi*ky*y1) + 0.05*np.cos(2*np.pi*kx*x2 + 2*np.pi*ky*y2)

wz = z * window('hann', z.shape)

plt.figure(0)
plt.imshow(wz)

f = fftfreq(len(k), np.diff(k)[0])
zf = np.abs(fftshift(fft2(wz)))[1200:, 1200:]
fig, ax = plt.subplots()
ax.set(xlim=(0, 2), ylim=(0, 2))
ax.imshow(zf,extent=[0,f[:k.size//2][-1], 0 , f[:k.size//2][-1]])
plt.show()