TukeyWindow¶
-
class
photutils.psf.matching.
TukeyWindow
(alpha)[source]¶ Bases:
photutils.psf.matching.SplitCosineBellWindow
Class to define a 2D Tukey window function.
The Tukey window is a taper formed by using a split cosine bell function with ends that touch zero.
- Parameters
- alphafloat, optional
The percentage of array values that are tapered.
Examples
import matplotlib.pyplot as plt from photutils.psf import TukeyWindow taper = TukeyWindow(alpha=0.4) data = taper((101, 101)) plt.imshow(data, cmap='viridis', origin='lower') plt.colorbar()
(Source code, png, hires.png, pdf, svg)
A 1D cut across the image center:
import matplotlib.pyplot as plt from photutils.psf import TukeyWindow taper = TukeyWindow(alpha=0.4) data = taper((101, 101)) plt.plot(data[50, :])
(Source code, png, hires.png, pdf, svg)