Pvalue units

radiance-general
1

Hi all,

When using the pvalue command, and using the -b option to obtain the
brightness, what are the resulting units for each pixel if I'm working in
radiance units?

Thanks in advance!
adriana

2

Hi Adriana,

If you use the -o option of pvalue, then the output of the -b option is watts/steradian/meter^2 and should be multiplied by the standard conversion factor of 179 lumens/watt to get to candelas/meter^2 (or nits). A candela is a lumen/steradian.

-Greg

ยทยทยท

From: [email protected]
Date: March 27, 2006 5:03:07 PM PST

Hi all,

When using the pvalue command, and using the -b option to obtain the
brightness, what are the resulting units for each pixel if I'm working in
radiance units?

Thanks in advance!
adriana