digital imaging photometry

[Jan Hollan <jhollan@amper....muni.cz>]

I've just finished an already useful version of a programme
for doing photometry with a standard digital camera. It's ready just for
Canon EOS D60 at the moment, and an executable in the directory is for
Linux only.
   http://amper.ped.muni.cz/light/luminance/

Some night scenes from Brno are within the subdirectory ``results''.  The
luminaires themselves are completely overexposed of course, to measure
them, exposures hundred times lower would be needed.

The calibration for sodium light is even less accurate than for
sun/moonlight.

I hope to start measuring road albedos etc. soon.

The programme is easy to adapt to another Canon cameras. If the dcraw
programme would be adapted to offer simple decompressed output from
another cameras, then even they could be employed. The only must is that
the camera offers the raw data.

jenik