# Pipeline spec.
#
# One operation per line: an op name followed by whitespace-separated args.
# Blank lines and lines starting with '#' are ignored.
# Steps are applied top-to-bottom to each input image.
#
# op        args                 meaning
# --------  -------------------  ------------------------------------------
# grayscale (none)               convert to grayscale
# invert    (none)               invert colors
# rotate    <degrees>            rotate counter-clockwise by <degrees>
# crop      <left> <top> <right> <bottom>   crop to that box (pixels)
# resize    <width> <height>     resize to exactly width x height
# convert   <FORMAT>             set output format (e.g. JPEG, PNG)

grayscale
rotate 90
crop 0 0 64 64
resize 32 32
convert JPEG
