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PIXUNTILE(1) BRL-CAD PIXUNTILE(1)

pixuntile - break image up into separate files

pixuntile [-s squareinsize] [-w in_width] [-n in_height] [-S squareoutsize] [-W out_width] [-N out_height] [-o startframe] basename < file.pix

pixuntile [-s squareinsize] [-w in_width] [-n in_height] [-S squareoutsize] [-W out_width] [-N out_height] file1 file2... fileN < file.pix

pixuntile performs the inverse operation of pixtile(1). It takes a large image composed of a collection of small images and places each of them in a separate file. The input and output files are assumed to be in pix(5) format. By default, the input file is assumed to be 512x512 pixels in size.

The output files have a default width of 64 pixels and are usually square, i.e. have the same height as width. Specifying the -S flag changes the default size to squareoutsize pixels in width and height. (The -W and -N flags are used for width and height, respectively. For the input file, these functions are available through the -s, -w, and -n flags.)

The files being produced as output will have names of the form basename.num, where basename is given on the command line, and num is a consecutive series of integers. By default the first image is assumed to be number " 0 ", but an alternate startframe can be given by using the -o startframe flag and specifying the starting output frame number, where startframe is substituted for num in basename.num.

Alternatively, if more than one basename (filename) argument is supplied on the command line, the names of the files are used as the output file names.

pixuntile -s 1024 -S 128 out < in.pix will read the 1024x1024 file in.pix and place the 128x128 chunks of that file from lower left to upper right in the files out.0 through out.63.

pixtile(1), brlcad(1), pix(5)

BRL-CAD Team

This software is Copyright (c) 1988-2019 by the United States Government as represented by U.S. Army Research Laboratory.

Reports of bugs or problems should be submitted via electronic mail to devs@brlcad.org
06/07/2022 BRL-CAD

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