input,s,a,,,,Input images
output,s,a,,,,Output images
bzero,s,h,"0.",,,Zero point (mean|median|mode or value)
bscale,s,h,"1.",,,Scale factor (mean|median|mode or value)
section,s,h,"",,,Image section for calculating statistics
step,i,h,10,1,,Default sampling  step for calculating statistics
lower,r,h,INDEF,,,Lower limit for calculating statistics 
upper,r,h,INDEF,,,Upper limit for calculating statistics 
verbose,b,h,yes,,,Verbose mode ?