ppmtogif
Convert PPM images to GIF format
TLDR
Convert PPM to GIF
$ ppmtogif [input.ppm] > [output.gif]
With transparency$ ppmtogif -transparent [color] [input.ppm] > [output.gif]
Interlaced GIF$ ppmtogif -interlace [input.ppm] > [output.gif]
Animated GIF$ pamtogif [frame1.ppm] [frame2.ppm] > [animated.gif]
SYNOPSIS
ppmtogif [options] [ppmfile]
DESCRIPTION
ppmtogif converts PPM images to GIF format. GIF is limited to 256 colors, so use ppmquant first if needed. Superseded by pamtogif.
Part of Netpbm toolkit.
PARAMETERS
-transparent color
Make color transparent.-interlace
Create interlaced GIF.-sort
Sort colormap.-map file
Use specified colormap.-comment text
Add comment.
EXAMPLES
$ # Basic conversion
ppmtogif image.ppm > image.gif
# With transparency
ppmtogif -transparent white logo.ppm > logo.gif
# Quantize first for photos
ppmquant 256 photo.ppm | ppmtogif > photo.gif
# Interlaced for web
ppmtogif -interlace image.ppm > interlaced.gif
# From JPEG
jpegtopnm photo.jpg | ppmquant 256 | ppmtogif > photo.gif
ppmtogif image.ppm > image.gif
# With transparency
ppmtogif -transparent white logo.ppm > logo.gif
# Quantize first for photos
ppmquant 256 photo.ppm | ppmtogif > photo.gif
# Interlaced for web
ppmtogif -interlace image.ppm > interlaced.gif
# From JPEG
jpegtopnm photo.jpg | ppmquant 256 | ppmtogif > photo.gif
CAVEATS
GIF limited to 256 colors. Use ppmquant for more colors. Use pamtogif for animation.
HISTORY
ppmtogif is part of Netpbm by Jef Poskanzer, with LZW compression code by various contributors.