.TH COMPOSE 1 
.SH NAME
compose  \- compose images
.SH SYNOPSIS
.B compose
[
.B -t
][
.B -c
.I chan
][
.B -o
.I drawop
]
.I file1 file2 ...
.SH DESCRIPTION
.I Compose
uses the Porter-Duff operations to build a
new image from base images.  The default
operation is
.BR SoverD .
The default channel format is the taken
from the first image.
The composing operation and channel
formats are is specified as
in
.IR draw (2)
and
.IR image (6).
The base images
may be in (most) any format;
.IR imgtype (1)
is used to intuit the file type and convert
them to Plan 9 format.  The
.B -t
flag forces conversion to truecolor.
.SH SOURCE
.B /sys/src/cmd/compose
.SH "SEE ALSO"
.IR draw (2),
.IR image (6),
.IR imgtype (1),
.IR page (1),
.IR resample (1).