digital image utilization management system. These tools
do exist, since with respect to a certain line besides of
access to single BCL-records PODIUM provides by means of
super-records access to
- single CL-records (auxiliary channels),
- the complete set of BCL- and CL-records,
- single L-records,
- single BL-records,
- the complete set of BL- and L-records,
- the complete set of BL-, L-, BCL- and CL-records.
6. Image segmentation
With regard to PODIUM the technical term image segmen-
tation has to be used in its widest sense since each
particular program referencing PODIUM does determine its
meaning while PODIUM itself only providing appropriate
tools which may be used for instance upon
- image recognition, e.g. /7/
- clustering, histogramming,
- region growing,
- relaxation,
- image matching,
- Shape detection,
- annotating non-glabally,
- computer graphics, e.g.
- .Surveying,
- establishing thematic maps.
Given a certain DAI, an arbitrary number of segments,
called windows, may be defined in the shape of polygons
/5/. The windows may arbitrarily overlap. Horeover,
there may be sub-windows also in the shape of polygons
excluding pixels from a window thereby allowing large non-
simply connected areas to be referenced by means of a
single window name and processed as if they were homo-
geneous. As a consequence of this, windows may arbitrarily
be nested.
A reference to pixels in connection with the shape of a
window requires the window's pixels to be appropriately
labelled in a pattern channel while otherwise there is
no need for a pattern channel. Appropriate labelling
and referencing algorithms have been presented in /4/.
These are somewhat complicated since the number of
different labels which can be used in a pattern channel
is always limited by a rather small integer but one
wants to have the ability of defining an arbitrary number