diff options
| author | Joseph Hunkeler <jhunkeler@gmail.com> | 2015-07-08 20:46:52 -0400 |
|---|---|---|
| committer | Joseph Hunkeler <jhunkeler@gmail.com> | 2015-07-08 20:46:52 -0400 |
| commit | fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4 (patch) | |
| tree | bdda434976bc09c864f2e4fa6f16ba1952b1e555 /noao/imred/vtel/doc/trim.hlp | |
| download | iraf-linux-fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4.tar.gz | |
Initial commit
Diffstat (limited to 'noao/imred/vtel/doc/trim.hlp')
| -rw-r--r-- | noao/imred/vtel/doc/trim.hlp | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/noao/imred/vtel/doc/trim.hlp b/noao/imred/vtel/doc/trim.hlp new file mode 100644 index 00000000..9962db80 --- /dev/null +++ b/noao/imred/vtel/doc/trim.hlp @@ -0,0 +1,33 @@ +.help trim Jan85 noao.imred.vtel +.ih +NAME +trim -- Trim the limb. Zero all pixels off the limb in a full disk image +.ih +USAGE +trim inputimage threshold +.ih +PARAMETERS +.ls inputimage +Name of data image to trim. +.le +.ls threshold +Squibby brightness value to use as a threshold in determining the limb. +.le +.ih +DESCRIPTION +Trim scans all the pixels in an image and sets those pixels to zero that +contain a squibby brightness smaller than the threshold value. This is +done in place, that is, the input image gets modified. +.ih +EXAMPLES +1. To trim a data image called 'data' with a squibby brightness threshold +of 4 (the standard value) the command would be: + +.nf + vt> trim data 4 +.fi + +.ih +SEE ALSO +getsqib, putsqib +.endhelp |