114 lines
3.8 KiB
Python
114 lines
3.8 KiB
Python
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#!/usr/bin/env python3
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#
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# Author: Cunren Liang
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# Copyright 2015-present, NASA-JPL/Caltech
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#
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import os
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import glob
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import shutil
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import datetime
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import numpy as np
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import xml.etree.ElementTree as ET
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import isce, isceobj
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from contrib.alos2proc.alos2proc import look
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from isceobj.Alos2Proc.Alos2ProcPublic import create_xml
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from isceobj.Alos2Proc.Alos2ProcPublic import runCmd
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from isceobj.Alos2Proc.runCoherence import coherence
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from StackPulic import loadProduct
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from StackPulic import stackDateStatistics
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def cmdLineParse():
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'''
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command line parser.
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'''
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import sys
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import argparse
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parser = argparse.ArgumentParser(description='take more looks and compute coherence')
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parser.add_argument('-ref_date', dest='ref_date', type=str, required=True,
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help = 'reference date of this pair. format: YYMMDD')
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parser.add_argument('-sec_date', dest='sec_date', type=str, required=True,
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help = 'reference date of this pair. format: YYMMDD')
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parser.add_argument('-nrlks1', dest='nrlks1', type=int, default=1,
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help = 'number of range looks 1. default: 1')
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parser.add_argument('-nalks1', dest='nalks1', type=int, default=1,
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help = 'number of azimuth looks 1. default: 1')
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parser.add_argument('-nrlks2', dest='nrlks2', type=int, default=1,
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help = 'number of range looks 2. default: 1')
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parser.add_argument('-nalks2', dest='nalks2', type=int, default=1,
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help = 'number of azimuth looks 2. default: 1')
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if len(sys.argv) <= 1:
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print('')
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parser.print_help()
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sys.exit(1)
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else:
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return parser.parse_args()
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if __name__ == '__main__':
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inps = cmdLineParse()
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#get user parameters from input
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dateReference = inps.ref_date
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dateSecondary = inps.sec_date
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numberRangeLooks1 = inps.nrlks1
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numberAzimuthLooks1 = inps.nalks1
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numberRangeLooks2 = inps.nrlks2
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numberAzimuthLooks2 = inps.nalks2
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#######################################################
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pair = '{}-{}'.format(dateReference, dateSecondary)
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ml1 = '_{}rlks_{}alks'.format(numberRangeLooks1, numberAzimuthLooks1)
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ml2 = '_{}rlks_{}alks'.format(numberRangeLooks1*numberRangeLooks2, numberAzimuthLooks1*numberAzimuthLooks2)
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insarDir = 'insar'
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os.makedirs(insarDir, exist_ok=True)
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os.chdir(insarDir)
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amplitude = pair + ml1 + '.amp'
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differentialInterferogram = 'diff_' + pair + ml1 + '.int'
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multilookAmplitude = pair + ml2 + '.amp'
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multilookDifferentialInterferogram = 'diff_' + pair + ml2 + '.int'
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multilookCoherence = pair + ml2 + '.cor'
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amp = isceobj.createImage()
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amp.load(amplitude+'.xml')
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width = amp.width
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length = amp.length
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width2 = int(width / numberRangeLooks2)
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length2 = int(length / numberAzimuthLooks2)
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if not ((numberRangeLooks2 == 1) and (numberAzimuthLooks2 == 1)):
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#take looks
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look(differentialInterferogram, multilookDifferentialInterferogram, width, numberRangeLooks2, numberAzimuthLooks2, 4, 0, 1)
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look(amplitude, multilookAmplitude, width, numberRangeLooks2, numberAzimuthLooks2, 4, 1, 1)
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#creat xml
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create_xml(multilookDifferentialInterferogram, width2, length2, 'int')
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create_xml(multilookAmplitude, width2, length2, 'amp')
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if (numberRangeLooks1*numberRangeLooks2*numberAzimuthLooks1*numberAzimuthLooks2 >= 9):
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cmd = "imageMath.py -e='sqrt(b_0*b_1);abs(a)/(b_0+(b_0==0))/(b_1+(b_1==0))*(b_0!=0)*(b_1!=0)' --a={} --b={} -o {} -t float -s BIL".format(
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multilookDifferentialInterferogram,
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multilookAmplitude,
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multilookCoherence)
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runCmd(cmd)
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else:
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#estimate coherence using a moving window
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coherence(multilookAmplitude, multilookDifferentialInterferogram, multilookCoherence,
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method="cchz_wave", windowSize=5)
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os.chdir('../')
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