One aspect of most digital camera sensors (I think the only exception is
the Foveon chip) is they all use some form of color separating filters
on a black and white sensor, creating a color matrix. In other words,
no digital camera sensor provides RGB separation per sensor. The sensor
is only
if the result was high quality digital scans at the rate of a
roll every few minutes instead of a roll per hour.
I doubt that this is possible with digital cameras even if they used a
very large flash cards for memory to contain a large number of high
quality camera raw or TIFF files since not