NAME

pnmindex - build a visual index of a bunch of PNM images

SYNOPSIS

pnmindex

[-size=N]

[-across=N]

[-colors=N]

[-black]

[-title=title]

[-quant|-noquant]

pnmfile ...

You can use the minimum unique abbreviation of the options. You can use two hyphens instead of one. You can separate an option name from its value with white space instead of an equals sign.

DESCRIPTION

This program is part of Netpbm(1).

pnmindex creates an index image containing thumbnail (small) versions of a bunch of PNM files you supply. (Akin to a photographic "contact sheet."

pnmindex labels each thumbnail and, optionally, contains a title.

If you just want to concatenate some images together in a grid, use pamundice for that.

If you want to take apart the image you generated with pnmindex, use pamdice or pamcut.

The program can generate large temporary files. By default, these go in directory /tmp, but you can usse the TMPDIR environment variable to have them somewhere else.

OPTIONS

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

-size=N

The size of each thumbnail. The image is scaled to fit maximally inside a N x N pixel box without changing its aspect ratio. Default is 100.

-across=N

The number of thumbnails in each row. Default is 6.

-colors=N

The maximum number of colors allowed in the overall image. If it would otherwise have more colors than these, pnmindex quantizes the result. The default is 256.

However, this value is meaningless if you specify the -noquant option.

-black

This controls the color of the padding between the images; normally it's white and the labels are black lettering on white background, but the -black option reverses this.

-title=title