Beyond Linux® From Scratch - Version 6.3

Chapter 9. Graphics and Font Libraries

giflib-4.1.4

Introduction to giflib

The giflib package contains libraries for reading and writing GIFs as well as programs for converting and working with GIF files. The libraries are useful for any graphics program wishing to deal with GIF files while the programs are useful for conversion purposes as well as cleaning up images.

Package Information

giflib Dependencies

Optional

X Window System and Utah Raster Toolkit (or URT-3.1b)

User Notes: http://wiki.linuxfromscratch.org/blfs/wiki/giflib

Installation of giflib

Install giflib by running the following commands: 

./configure --prefix=/usr &&
make

This package does not come with a test suite.

Now, as the root user: 

make install &&
install -v -m755 -d /usr/share/doc/giflib-4.1.4/html &&
install -v -m644 doc/*.{png,html} \
    /usr/share/doc/giflib-4.1.4/html &&
install -v -m644 doc/*.txt \
    /usr/share/doc/giflib-4.1.4

Contents

Installed Programs: gif2epsn, gif2ps, gif2rgb, gif2x11, gifasm, gifbg, gifburst, gifclip, gifclrmp, gifcolor, gifcomb, gifcompose, giffiltr, giffix, gifflip, gifhisto, gifinfo, gifinter, gifinto, gifovly, gifpos, gifrotat, gifrsize, gifspnge, giftext, gifwedge, icon2gif, raw2gif, rgb2gif, and text2gif
Installed Library: libgif.{so,a}
Installed Directory: /usr/share/doc/giflib-4.1.4

Short Descriptions

gif2epsn

dumps images saved as GIF files on Epson type printers.

gif2ps

prints GIF files on laser printers supporting PostScript.

gif2rgb

converts images saved as GIF to 24-bit RGB images.

gif2x11

displays images saved as GIF files under X Window System.

gifasm

assembles multiple GIFs into one, or burst a multiple-image GIF.

gifbg

generates a single-color test pattern GIF.

gifburst

bursts a GIF image into subrectangles.

gifclip

clips or crops a GIF image.

gifclrmp

modifies GIF image colormaps.

gifcolor

generates color test patterns.

gifcomb

combines two GIF images of exactly the same size into one.

gifcompose

uses giflib tools to compose images.

giffiltr

is a template for filtering a GIF sequentially.

giffix

clumsily attempts to fix truncated GIF images.

gifflip

flips a GIF image along the X or Y axis or rotates an image by 90 degrees.

gifhisto

generate a color-frequency histogram from a GIF.

gifinfo

gives information about a GIF file.

gifinter

converts between interlaced and non-interlaced images.

gifinto

is an end-of-pipe fitting for GIF-processing pipelines.

gifovly

generates one composite GIF from a multiple-image GIF.

gifpos

changes a GIF's screen size or reconditions it.

gifrotat

rotates a GIF through any desired angle.

gifrsize

resizes a GIF by deletion or duplication of bits.

gifspnge

is a template for filtering a GIF with in-core operations.

giftext

prints (text only) general information about a GIF file.

gifwedge

creates a test GIF image resembling a color monitor test pattern.

icon2gif

is a converter/deconverter to/from an editable text format.

raw2gif

converts raw 8-bit image data into GIF files.

rgb2gif

converts 24 bit images to a GIF image using color quantization.

text2gif

generates GIF images out of regular text in 8x8 font.

libgif.{so,a}

contains API functions required by the giflib programs and any other programs needing library functionality to read, write and manipulate GIF images.

Last updated on 2008-05-10 18:53:20 -0500