How to change pixel size of an image
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import numpy as np
import matplotlib.pyplot as plt
import pyfits
from scipy.ndimage.filters import gaussian_filter as gf
from scipy import interpolate
plt.style.use('ggplot')
def Resample(data1,pixel_size_1,pixel_size_2):
len_X = len(data1[1,:])
len_Y = len(data1[:,1])
p = pixel_size_2/pixel_size_1
xnew = np.arange(0, len_X, p)
ynew = np.arange(0,len_Y,p)
f= interpolate.interp2d(np.arange(len_X), np.arange(len_Y),data1, kind='linear')
resamp_data1 = f(xnew,ynew)
return resamp_data1, resamp_data1.shape
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