Home > ISET > vcamera > scene > sceneCalculateLuminance.m

sceneCalculateLuminance

PURPOSE

Calculate scene luminance (cd/m^2)

SYNOPSIS

function [luminance,meanLuminance] = sceneCalculateLuminance(scene)

DESCRIPTION

Calculate scene luminance (cd/m^2) 

  [luminance,meanLuminance] = sceneCalculateLuminance(scene)  

 Calculate the luminance (cd/m^2) at each point in a scene.

 Calculations of the scene luminance usually begin with
 photons/sec/nm/sr/m^2 (radiance).  These are converted to energy, and
 then transformed with the luminosity function and wavelength sampling
 scale factor. 
 
 Copyright ImagEval Consultants, LLC, 2003.

CROSS-REFERENCE INFORMATION

This function calls:

sceneGet Get scene parameters and derived properties

This function is called by:

sceneCreate Create a scene structure.
sceneCrop Crop scene data.
sceneGet Get scene parameters and derived properties
sceneInterpolateW Wavelength interpolation for scene image data
sceneSPDScale Multiply, Divide, Add or Subtract the scene radiance data