gifblender

gifblender blends the frames of animated gifs or other image sequences.

Usage

Usage: gifblender [options] <img.gif>|<img1> <img2> ...

Options:
  -h, --help               show this help message and exit
  -o, --outdir <arg>       output directory
  -s, --steps <arg>        number of steps
  -t, --transition <arg>   transition timing
  -b, --blend-last         blend first and last frames

Available transition timings:
  linear (default)
  ease
  ease-in
  ease-out
  ease-in-out

# for looping gifs, the -b|--blend-last option lets you blend the last
# and first frames (this creates a seemlessly looping gif)
$ gifblender -o /tmp/frames/ -s 20 -t ease -b source.gif

# you can also blend arbitrary image sequences if they have the same
# dimensions
$ gifblender -o /tmp/frames/ -s 20 img1.jpg img2.jpg img3.jpg *.jpg

Example output

Note: gifblender only creates intermediary frames - it does not create gifs. Use a program like gifsicle to animate gifblender's results.

Transition

The -t|--transition option specifies the rate at which the transition between two frames is carried out:

Requirements

gifblender requires the ImageMagick suite.

# Debian compatible OS
$ apt-get install imagemagick

# Redhat compatible OS
$ yum install ImageMagick

# Mac OS with macports
$ port install ImageMagick

# FreeBSD
$ pkg install ImageMagick # or ImageMagick-nox11

License

gifblender is released under the terms of the New BSD License.