NIS (NeuroImaging Software) package version 3.2   March 15, 2000


Changes from NIS 3.1

- Merged nisnorm and nisnrm; removed nisnrm.
- Changed nisnorm to scale pixels below threshold when adjustment
  factor is less than 1, preventing signal pixels from being lower in
  intensity than noise pixels when mean image intensity is decreased.
  Added -k flag to allow for previous behavior.
- Merged nistime and nistime_tb; removed nistime_tb.  nistime -p does
  the same thing that nistime_tb used to do.
- Added nisreslice and nismooth programs and nisepi2an.pl script.
- Changed unixstat_anova to read the design file and create offset
  index only once (in getlevels) instead of once for each pixel above
  threshold (in readdata).
- Changed read_analyze to return images in txyz format when a specific
  slice is requested, improving performance for nispost and nisanova.
- Changed pgh2air.csh script to create real headers instead of only
  a single generic one.
- Removed -z flag from nisair, nisanova, nisexpand, nispost, nisroi,
  and nistime; changed -z flag in nisnorm to compress input images
  instead of producing compressed output images.  Moved compress
  option from write_analyze to read_analyze.
- Made error messages given by nisroi and nistime more descriptive.
- Added slice-wise summary statistics table to nismaps output.
- Changed nismaps to no longer limit variance to a threshold floor in
  computing snr; instead, if the mean is below threshold, snr is set
  to zero, otherwise, snr is computed as usual.
- Removed memory leaks from nisanova, niscrit, nispost,
  unixstat_anova, and read_write_analyze.
- Fixed single-character array overrun problem in filenames in
  nisnorm, nistime, and unixstat_anova (missing ending \0).
- Fixed nisnrm (now nisnorm) problem of prepending an 'n' to the
  beginning of the path instead of the output image filename when a
  full path was specified for the input image filename; now the 'n' is
  correctly prepended to the output image filename and not the path.