Synopsis
		sfcostaper < in.rsf > out.rsf nw#=0

April 2014 program of the month:
http://ahay.org/blog/2014/04/02/program-of-the-month-sfcostaper/

Parameters
		int nw#=0 tapering on #-th axis

Used In
		DATA          nankai/data   GALLERY          french/lowrank gradient/fakirmig gradient/lowrank gradient/model gradient/oway marmousi/model overthrust/model sigsbee/ffd sigsbee/lowrank sigsbee/lrostep sigsbee/model sigsbee/oway twohalf/model vofz/gazdag vofz/kirch vofz/lowrank vofz/model vofz/oway vofz/stolt vofz/vc   GEE          ajt/igrad1 hlx/helderiv hlx/helocut   GEO384H          hw3/compress hw3/pocs   GEO384S          hw3/dmo hw6/gazdag hw6/rtm   GEO384W          hw4/sigsbee hw5/hyper hw5/hyper2 hw6/hyper   RSF          school/horizon school2015/born su/rsflab10 su/rsflab9   SEP          pyramid/model   TCCS          anisodiff/pcable anisodiff/simple3d dtwaniso/synthetic-gather eikods/migration ovc/nankai ovc/psovc pi/barrolka pi/bei pi/simple-model probdif/nankai probdif/noisy-synthetic probdif/synthetic probdif/toy sparse/sparse-experim-shaping sparse/vg strat/sigmoid1 synth/small-khuff t2dweak/alaska varipick/global-gom varipick/horizon varipick/newviking wetm/nankaizone wetm/synthetic4   ZJU          diffrlrra/nankai_new diffrlrra/synth