Unix/Linux Go Back    


CentOS 7.0 - man page for pamslice (centos section 0)

Linux & Unix Commands - Search Man Pages
Man Page or Keyword Search:   man
Select Man Page Set:       apropos Keyword Search (sections above)


Pamslice User Manual(0) 						  Pamslice User Manual(0)

NAME
       pamslice - extract one line of values out of a Netpbm image

SYNOPSIS
       pamslice {-row=rownumber | -column=columnnumber} [-plane=planenumber] [imagefile]

OPTION USAGE
       All  options  can be abbreviated to their shortest unique prefix.  You may use two hyphens
       instead of one.	You may separate an option name and its value with white space instead of
       an equals sign.

DESCRIPTION
       This program is part of Netpbm(1)

       pamslice  extracts one line of tuples (pixels) out of a Netpbm image and prints their val-
       ues in a table.	A line means a row or column.  It shows you a one-dimensional cross  sec-
       tion  of a two-dimensional image.  (With the -plane option, it can be thought of as a one-
       dimensional cross-section of a three-dimensional image).

       The table has one line per tuple, consisting of	blank-separated  ASCII	decimal  numbers.
       The  first  number  is the column number if you specified a row slice or the row number if
       you specified a column slice.  The rest of the numbers are the sample values in plane num-
       ber  order.  For a PBM or PGM input, there is only one plane.  For a PPM input, Plane 0 is
       red, Plane 1 is green, and Plane 2 is blue.  See the specifications of the  image  formats
       for details on exactly what these numbers mean.

       If  you	want to see all the pixels in a PPM, PGM, or PBM image in ASCII decimal, pnmtopnm
       -plain is a good way to do that.

OPTIONS
       -row=rownumber
		   This indicates that the slice is to be horizontal -- i.e. one row of the
		   image -- and indicates which row.  Rows are numbered from the top
		   starting with 0.

	      You cannot specify both -row and -column.

       -column=colnumber
		   This indicates that the slice is to be vertical -- i.e. one column of the
		   image -- and indicates which column.  Columns are numbered from the left
		   starting with 0.

	      You cannot specify both -row and -column.

       -plane=planenumber
		   This specifies that you are interested in only one plane of the image
		   and which one.  Planes are numbered from 0 and have meanings that vary
		   on the type of image.  In a PPM image, Plane 0 is red, Plane 1 is
		   green, and Plane 2 is blue.

	      If you don't specify -plane, you get all the planes -- each
		   line of output has multiple numbers in addition to the sequence number.
		   If you do specify -plane, each line of output contains one
		   number in addition to the sequence number.

       -xmgr
		   This option causes pamslice to format the output as input for a
		   xmgr so you can plot it.  The only difference this option makes
		   is that it adds header information to the beginning of the output.

SEE ALSO
       pamcut(1)

       pnmtopnm(1)

       pnmtoplainpnm(1)

       pnm(1)

HISTORY
       pamslice replaced pgmslice in Netpbm 10.3 (June 2002).  It was  backward  compatible,  but
       worked on Netpbm images other than PGM and PBM and added the -plane and -xmgr options.

AUTHOR
       Jos  Dingjan <jos@tuatha.org> wrote pgmslice after being unable to find the source code to
       Marco Beijersbergen's program with the same name.  Bryan Henderson converted  it  to  pam-
       slice.

netpbm documentation			 8 February 2010		  Pamslice User Manual(0)
Unix & Linux Commands & Man Pages : ©2000 - 2018 Unix and Linux Forums


All times are GMT -4. The time now is 01:05 PM.