OUT specifies the name of the output file. If the output file specification is omitted, output is sent only to the screen.
MODE specifies one of the following options: HORIZONT indicates that averaging will be done along each line (default). VERTICAL indicates that averaging will be done along each column.
HIGH causes the high-pass version of the filter to be output. Pixel
values created by the high-pass specification are determined
by taking the average value of the pixels within the
user-specified window dimension and then subtracting the value
of the pixel prior to filtering, and, for byte data only, adding 128
to the result.
If the keyword PLOT is used, the results are plotted as a PostScript file.
If the keyword NOPRINT is used, printing to the screen and session log are suppressed. In the default (PRINT) mode, each of the average values is printed.
IMAG causes the creation of a full-size image where each pixel is replaced in value by the average for its particular row (HORIZONTAL mode) or column (VERTICAL mode).
The default is to compute averages.
EXCLUDE selects a particular pixel value to be ignored by the program. (Default is to include all samples.)
FILTER specifies the filtering option and the width of the window to be used. An m-element box filter will be performed on the line of average DN values before the line is output. (Default is no filtering on the line.)
By default, the print-out is not in AIS format. The AIS keyword does not affect the size of the output file.
This parameter is used with the AIS parameter. The maximum title length is 122 characters.