Nisfilter

Nisfilter convolves and deconvolves vectors of data over time from Pgh-1.0 txyz format files with a provided filter.

Invocation

java  Nisfilter 

Nisfilter window

The filter must be a two-column text file of odd length and zero centered, like what Nishemo produces.

Information to be entered

• Input Dataset
  The path to the Pgh-1.0 txyz file to be convolved, without .mri or .dat extension.
• Output Dataset
  The filename results should be saved to, as a Pgh-1.0 txyz format file, without .mri or .dat appended.
• Filter file
  Name of the file to be used as the odd-length, zero-centered filter.
• Convolve
  Select this to convolve the Input Dataset with the filter.
• Deconvolve
  Select this to deconvolve the filter from the Input Dataset.
• Rescale Filter
  Check this box to account for the discretization of the filter (for instance, from a Gaussian curve to 11 discrete points) by rescaling the individual elements of the filter so that the sum is 1.
• Rescale Edges
  Check this box to "correct" the edge effects of a discrete convolution by flattening out the edges of the output vectors.
• Verbose
  Check this box to get warnings and progress information from the backend.
• Use an ASCII list of values as input
  Use a list of values as input instead of a Pgh-1.0 txyz file, and write a list of values as output. The list of values will be processed as though it were a single t-vector in a dataset.

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