The PISA package has various in-built limitations (buffer sizes etc.), This section details them; if they
cause real problems then contact the supporter of this package.
The number of fragments per image (i.e. connected pixel groups) is limited to 200.
Hence blends of objects cannot fragment into more than 200 pieces.
The number of pixels per image allowed during surface modelling is 10000.
The length of the first side of input image cannot be more than 10240 pixels.
The input data is processed using an HDS type of _WORD so the input data
range must lie within the bounds -32768 to +32767, although PISAFIND itself only
processes positive data up to the value 32766. This limitation is fundamental.
There are no other known restrictions. Input NDFs are now accessed via file
mapping. There is no restriction on the number of detected objects.
PISAFIT
As in PISAFIND the length of first side of the input image has to be less than 10240
pixels.
The input data is processed using an HDS type of _WORD so the input data range
must lie within the bounds -32768 to +32767.