It is obvious that such a simple referencing mechanism
may be regarded as a satisfactory solution to the third
requirement stated in section 1.
9. Implementation
Doubting the quality of transferable allround software
for the manipulation of millions of pixels was one of
the stimuli to conceiving PODIUM as can be seen from
the fifth objective in section 1.
PODIUM requires an individual installation on every
different manufacturer's computer. This should be per-
formed by a real computer specialist engaging him at
most one year. A first installation is working on the
UNIVAC 1100/81 in the computer center of the University
of Freiburg under FIPS, i.e. Freiburg's Image Processing
System.
Naturally the structure of such installations will vary
and hence cannot in general be described. But what can
be said is that
- a programmer who has to deal with PODIUM may regard
it as a single subroutine,
- with respect to
- program segmentation,
- reentrency and
- 1/0 optimization
the main storage allocation for all data has to be
performed by the rferencing program,
- it is recommended to have PODIUM within a larger
program system and to make it upon communicating
with users behave like the system does.
10. Acknowledgements
The development of PODIUM is part of a spectral signature
research project subsidied by the Deutsche Forschungs-
gemeinschaft.
The UNIVAC 1100/81 implementation of PODIUM in Freiburg
has been achieved in cooperation with Hr. cand. math.
S. Giesler who wrote very intelligent software for the