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Given the following text description, write Python code to implement the functionality described below step by step
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Description:
 Reading segY seismic files with obspy
Corresponding obspy documentation can be found at
Step1:  Reading the data
Step2:  Number of traces
Step3:  Number of samples
Step4:  Number of traces and we want to explore
Step5:  Image creation
Step6:  Scalar range
Step7:  Determing the number of traces
Step8:  Number of images
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Python Code:
%matplotlib inline
import matplotlib.pyplot as plt
import matplotlib.image as mpimg
import numpy as np
from obspy.io.segy import segy
import urllib
import numpy as np
Explanation: Reading segY seismic files with obspy
Corresponding obspy documentation can be found at:
https://docs.obspy.org/packages/autogen/obspy.io.segy.segy._read_segy.html
Each file has a general form of T traces, where the i-th trace can be accessed in segyfile.traces[i]. Each trace has N samples that are accessed in segyfile.traces[i].data and the j-th data point is accessed in segyfile.traces[i].data[j]. N is such that $N = n\Delta_y$, where $\Delta_y$ is the is the size of the y-dimension.
End of explanation
segyfile = segy._read_segy('/Users/mviana/Documents/IBMProjects/Seismic/SegY2TifConv/PSDM_IL1500_2600_XL_3100_6500_time.sgy')
Explanation: Reading the data:
End of explanation
len(segyfile.traces)
Explanation: Number of traces:
End of explanation
segyfile.traces[0].data.shape[0]
Explanation: Number of samples:
End of explanation
ntraces = 3401#len(segyfile.traces)
nsamples = len(segyfile.traces[0].data)
Explanation: Number of traces and we want to explore:
End of explanation
mtraces = np.zeros((nsamples, ntraces))
mtraces.shape
for i in range(ntraces):
    mtraces[:nsamples, i] = segyfile.traces[i].data[:nsamples]
mtraces.shape
Explanation: Image creation:
End of explanation
srange = [np.min(mtraces),np.max(mtraces)]
print(srange)
plt.figure(num=None, figsize=(8, 20), dpi=120, facecolor='w', edgecolor='k')
imgplot = plt.imshow(mtraces, vmin=srange[0], vmax=0*srange[1])
Explanation: Scalar range:
End of explanation
plt.plot(mtraces[700:720,3400])
plt.plot(mtraces[700:720,3400])
segyfile.binary_file_header
Explanation: Determing the number of traces:
End of explanation
len(segyfile.traces)/3401
from PIL import Image
im = Image.fromarray(mtraces)
im.save('/Users/mviana/Documents/IBMProjects/Seismic/SegY2TifConv/temp.tif')
Explanation: Number of images:
End of explanation
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