7650 program 1

In this program you will have a graphics window interactively
display the output of a synthetic sensor.  This sensor have the
response functions:

R = constant * energy(600nm,700nm)
G = constant * energy(500nm,600nm)
B = constant * energy(400nm,500nm)

where "constant" is interactively adjusted so the maximum value of
any sensor output is 1.0.  As input to the sensor, use the squares of
the Macbeth color checker.