m9psr Documentation

M9PSR - Mariner 9 pinstripe removal
PROGRAMMER:  MARS1::KEH (Ken Herkenhoff, Caltech)
M9PSR remove pinstripe noise by subtracting the difference between
1 X 25 and 7 X 25 low-pass filtered versions of the input image.  Only
differences of 2 DN or less are subtracted.  Pinstripe noise is present
in most Mariner 9 images, appearing as vertical lines about one pixel
wide and separated by about 6 samples.  Their amplitude is usually about
2 DN.  All images must be 16-bit; output image will also be 16-bit.
FLT16B may be used to create the two filtered versions of the input
image.  See PSFILT.PDF for automated filtering.

Input image file name
(default extension is .cub)

NONE

1 X 25 filtered version
(default extension is .cub)

NONE

7 X 25 filtered version
(default extension is .cub)

NONE

Output image file name
(default extension is .cub)

NONE

ADDITIONAL NOTES:

Parm	Description
FROM	The input image must be 16-bit, and two low-pass filtered versions of the input image must be supplied. The input image must not have been gemoetrically transformed in any way, and is typically the result of level 1 processing (see M9LEVEL1). If the file extension is omitted, then ".cub" will be assumed.
FROM2	This is the 1X25 low-pass filtered version of the input image. The procedure PSFILT will filter the image using FLT16B and run M9PSR. If the file extension is omitted, then ".cub" will be assumed.
FROM3	This is the 7X25 low-pass filtered version of the input image. The procedure PSFILT will filter the image using FLT16B and run M9PSR. If the file extension is omitted, then ".cub" will be assumed.
TO	The output image will be 16-bit, with pinstripes removed. If the file extension is omitted, then ".cub" will be assumed.