NAME

       pamfind - Print the locations of all tuples of a certain value in an image

SYNOPSIS

       pamfind { -target=sample0,sample1, ... | -color=color } [-machine] [imagefile]

       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).

       pamfind reads a Netpbm image (PNM or PAM) and prints a list of all the locations (row and column) of  the
       tuples  that  have  a value you specify.  For example, you can list all the places that a visual image is
       red.

       You can specify the value in actual decimal sample values with a  -target  option  or  as  a  color  with
       -color.   If  you  specify -color, the program fails if the input image does not have depth 3.  If it has
       depth 3 but the tuples aren't actually colors, you get results as if they are.

       To do the opposite, see what tuple is at a given location, use pamcut and pamtable:

             $ pamcut -left=5 -top=7 -width=1 -height=1 | pamtable

       ppmcolormask also finds all the tuples of a certain value, at least in  visual  images,  but  instead  of
       printing  their coordinates, it generates a mask image, which you can use to visualize where those tuples
       are or as input to another program.

OPTIONS

       In addition to the options common to all programs based on libnetpbm (most notably  -quiet,  see   Common
       Options ), pamfind recognizes the following command line options:

       -target=sample0,sample1, ... |
              This  specifies the tuple value to find.  You specify the sample values in order, and must specify
              the proper number of sample values for the depth of the image (e.g. 3 if it is a color image).

              You must specify exactly one of -target and -color.

       -color=color
              This is the color to find, assuming the image is a color visual image.

              color is as described for the argument of the pnm_parsecolor() library routine .

              You must specify exactly one of -target and -color.

       -machine
              This makes the output more convenient for a machine to use, while
                less convenient for a human.  pamfind reports the same information
                as with no options.

              This option was new in Netpbm 10.87 (March 2020).

SEE ALSO

       pamdepth(1), pamgetcolor(1), ppmhist(1), ppmcolormask(1), pamcut(1), pamtable(1), pam(1)

HISTORY

       pamfind was added to Netpbm in Release 10.86 (March 2019).

DOCUMENT SOURCE

       This manual page was generated by the Netpbm tool 'makeman' from HTML source.  The  master  documentation
       is at

              http://netpbm.sourceforge.net/doc/pamfind.html

netpbm documentation                              13 March 2019                           Pamfind User Manual(1)