Referee 2 ***********************************************************************
Referee Recommendations. Please indicate overall recommendations here, and details 
in following sections. 
publish with minor changes.
 
An interesting and well-written paper.  The information is presented in a logical and 
clear manner.  The figures/diagrams/program fragments are clear and well-placed, 
aiding the 'reading experience' greatly.  
There are minor grammatical errors, but these do not detract from the quality of the 
paper too much. 

Presentation Changes 
End of abstract: Grammar: "for a specified cost, what system can should be ...." ?? 
Section 1, paragraph 1: [Li et al. 1995)]: remove the ) bracket
End of Section 1: Grammar: "Designer lenses can be built to suite the optical needs of 
specific applications can be fitted to the system": Remove 'can be' after 'lenses' ?
Beginning of  Section 2: "This strategy employ a manager" : change to employs?
Section 2 (just before Figure 3):  
".... subsequent image cubes in an multi-spectral image stream" :  change 'an' to 'a'
"..relatively independent, groups workers: one group ...."  should read 'groups of 
workers'?
End of Section 2:
"we follow the work Boynton": should this read '.... the work of Boynton'??
"The color matching function T is an n-by-3 matrix where each column....." Replace 
'an' with 'a', in front of 'n-by-3'.
Section 3, third sentence: 'different' : should be 'difference'
Section 3, second paragraph: "Figure 7 .....composite images generating using the ...." 
'generated'?
Paragraph after Figure 8:  " The weighting factor ....., and To can be obtained ...."  To 
requires subscript for the o.
The remainder of the sentence structure should perhaps be modified to: "..through a 
sequence of regression tests and least-square fitting.  The values are listed below"?
End Referee 2 ********************************************