NASA Ocean Color

ocssw V2022

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 def triad(b1,b2,r1,r2):
     # Program to perform Triad algorithm
     # input: b1,b2,r1,r2
     # output: rbmat
     # Ported from triad.pro by Fred Patt
     # Liang Hong, 2/18/2020
     
     import numpy as np
     
     xb = np.zeros((3,3))
     xr = np.zeros((3,3))
     
     xb[0,:] = b1
     tb = np.cross(b1,b2)
     xb[2,:] = tb/np.sqrt(np.sum(tb*tb))
     xb[1,:] = np.cross(xb[2,:],xb[0,:])
     
     xr[0,:] = r1
     tr = np.cross(r1,r2)
     xr[2,:] = tr/np.sqrt(np.sum(tr*tr))
     xr[1,:] = np.cross(xr[2,:],xr[0,:])
     
     
     rbmat = np.dot(np.linalg.inv(xr),xb)
     
     return rbmat
  

triad.triad

def triad(b1, b2, r1, r2)

Definition: triad.py:1