```from rsf.proj import * # Get data Fetch('midpts.hh','midpts') Flow('bei','midpts.hh','dd form=native | put d2=0.067 o2=0.132') # Velocity scan Flow('scn','bei','mutter v0=1.4 | vscan semblance=y v0=1.4 nv=48 dv=0.025') # Pick NMO velocity Flow('vel','scn','mutter x0=1.5 v0=0.67 half=n | pick rect1=40 rect2=10 | window') # Apply NMO Flow('nmo','bei vel','mutter v0=1.4 | nmo velocity=\${SOURCES[1]}') # Apply DMO Flow('dmo','nmo', ''' window f1=15 | logstretch nout=2048 | fft1 | transp plane=13 memsize=500 | findmo | transp memsize=500 plane=13 | fft1 inv=y | window n1=2048 | logstretch inv=y | pad beg1=15 ''') Flow('dmo1','dmo','window squeeze=n') #-------------simislarity stack Flow('stack1', 'dmo', 'stack') ## initial stack Plot('stack1','stack1', 'agc rect1=50 | grey title="a)" label2=CMP label1=Time unit1=s unit2=km screenratio=0.75 ') Flow('stacks', 'stack1','spray axis=3 n=25 | transp plane=23') Flow('weight', 'dmo1 stacks', '''similarity other=\${SOURCES[1]} niter=40 rect1=5 rect2=8 rect3=20 ''') ## local similarity Result('weight', ''' byte allpos=y gainpanel=all | grey3 flat=n frame1=490 frame2=13 frame3=60 title="" color=j label1=Time unit1=s label2=Offset label3=CMP unit2=km unit3=km point2=0.35 point1=0.55 screenratio=0.7 ''') Flow('tweight','weight','threshold pclip=99.9') Flow('simistack1','tweight dmo1', ''' sfmath y=\${SOURCES[1]} output=input*y | stack ''') Flow('nor','tweight','stack | stack axis=1 | spray n=1000 | transp | put d1=0.004 o1=-4.19095e-0') Flow('simistack','simistack1 nor','sfmath y=\${SOURCES[1]} output=input/y ') Flow('snrstack', 'dmo', 'snrstack w=20 ee=1e-1 esp=10000') Plot('snrstack','snrstack','agc rect1=50 | grey title="b)" label2=CMP label1=Time unit1=s unit2=km screenratio=0.75') Plot('simistack','simistack','agc rect1=50 | grey title="c)" label2=CMP label1=Time unit1=s unit2=km screenratio=0.75') Result('field','stack1 snrstack simistack ','SideBySideAniso') End()```

 sfdd sfput sfmutter sfvscan sfpick sfwindow sfnmo sflogstretch sffft1 sftransp sffindmo sfpad sfstack sfagc sfgrey sfspray sfsimilarity sfbyte sfgrey3 sfthreshold sfmath sfsnrstack