NAME
    composite - composite images together.

SYNOPSIS
    composite [ options ... ] image composite [ mask ] composited

DESCRIPTION
    composite composite images to create new images.  composite is the base
    image and image contains the changes. composited is the result, and
    normally has the same dimensions as composite.

    The optional mask can be used to provide matte information for compos-
    ite when it has none or if you want a different mask. A mask image is
    typically grayscale and the same size as composite. If mask is not
    grayscale, it is converted to grayscale and the resulting intensities
    are used as matte information.

EXAMPLES
    To composite an image of a cockatoo with a perch, use:

   composite cockatoo.miff perch.ras composite.miff

    To compute the difference between images in a series, use:

   composite -compose difference series.2 series.1
     difference.miff

    To composite an image of a cockatoo with a perch starting at location
    (100,150), use:

   composite -geometry +100+150 cockatoo.miff
     perch.ras composite.miff

    To tile a logo across your image of a cockatoo, use

   convert +shade 30x60 cockatoo.miff mask.miff
   composite -compose bumpmap -tile logo.png
     cockatoo.miff mask.miff composite.miff

    To composite a red, green, and blue color plane into a single composite
    image, try

   composite -compose CopyGreen green.png red.png
     red-green.png
   composite -compose CopyBlue blue.png red-green.png
     composite.png

OPTIONS
    Options are processed in command line order. Any option you specify on
    the command line remains in effect only for the  image that follows.
    All options are reset to their default values after each image is read.

    For a more detailed description of each option, see ImageMagick(1).

    -background <color>
    the background color

    -cache <threshold>
    megabytes of memory available to the pixel cache

    -colors <value>
    preferred number of colors in the image

    -colorspace <value>
    the type of colorspace

    -comment <string>
    annotate an image with a comment

    -compose <operator>
    the type of image composition

    -compress <type>
    the type of image compression

    -debug enable debug printout

    -density <width>x<height>
    vertical and horizontal resolution in pixels of the image

    -depth <value>
    depth of the image

    -displace <horizontal scale>x<vertical scale>
    shift image pixels as defined by a displacement map

    -display <host:display[.screen]>
    specifies the X server to contact

    -dispose <method>
    GIF disposal method

    -dissolve <percent>
    dissolve an image into another by the given percent

    -dither
    apply Floyd/Steinberg error diffusion to the image

    -encoding <type>
    specify the font encoding

    -endian <type>
    specify endianness (MSB or LSB) of output image

    -filter <type>
    use this type of filter when resizing an image

    -font <name>
    use this font when annotating the image with text

    -geometry <width>x<height>{+-}<x>{+-}<y>{%}{@} {!}{<}{>}
    preferred size and location of the Image window.

    -gravity <type>
    direction primitive gravitates to when annotating the image.

    -help print usage instructions

    -interlace <type>
    the type of interlacing scheme

    -label <name>
    assign a label to an image

    -matte store matte channel if the image has one

    -monochrome
    transform the image to black and white

    -negate
    replace every pixel with its complementary color

    -page <width>x<height>{+-}<x>{+-}<y>{%}{!}{<}{>}
    size and location of an image canvas

    -profile <filename>
    add ICM, IPTC, or generic profile  to image

    -quality <value>
    JPEG/MIFF/PNG compression level

    -resize <width>x<height>{%}{@}{!}{<}{>}
    resize an image

    -rotate <degrees>{<}{>}
    apply Paeth image rotation to the image

    -sampling_factor <horizontal_factor>x<vertical_factor>
    sampling factors  used by JPEG  or MPEG-2 encoder and YUV
    decoder/encoder.

    -scene <value>
    set scene number

    -sharpen <radius>x<sigma>
    sharpen the image

    -size <width>x<height>{+offset}
    width and height of the image

    -stegano <offset>
    hide watermark within an image

    -stereo
    composite two images to create a stereo anaglyph

    -treedepth <value>
    tree depth for the color reduction algorithm

    -trim trim an image

    -type <type>
    the image type

    -units <type>
    the type of image resolution

    -unsharp <radius>x<sigma>
    sharpen the image with an unsharp mask operator

    -verbose
    print detailed information about the image

    -watermark <brightness>x<saturation>
    percent brightness and saturation of a watermark

    -write <filename>
    write an image sequence [convert, composite]

    For a more detailed description of each option, see ImageMag-
    ick(1).

ENVIRONMENT
    DISPLAY
    To get the default host, display number, and screen.

SEE ALSO
   animate(1),display(1),conjure(1),convert(1),identify(1),ImageMagick(1)
    ,import(1),mogrify(1),montage(1)

COPYRIGHT
    Copyright (C) 2002 ImageMagick Studio

    Permission is hereby granted, free of charge, to any person obtaining a
    copy of this software and associated documentation files ("ImageMag-
    ick"), to deal  in ImageMagick without restriction, including without
    limitation the rights to use, copy, modify, merge, publish, distribute,
    sublicense, and/or sell copies of ImageMagick, and to permit persons to
    whom the ImageMagick is furnished to do so, subject to the following
    conditions:

    The above copyright notice and this permission notice shall be included
    in all copies or substantial portions of ImageMagick.

    The software is provided "as is", without warranty of any kind, express
    or implied, including but not limited to the warranties of mer-
    chantability, fitness for a particular purpose and noninfringement.In
    no event shall ImageMagick Studio be liable for any claim, damages or
    other liability, whether in an action of contract, tort or otherwise,
    arising from, out of or in connection with ImageMagick or the use or
    other dealings in ImageMagick.

    Except as contained in this notice, the name of the ImageMagick Studio
    LLC shall not be used in advertising or otherwise to promote the sale,
    use or other dealings in ImageMagick without prior written authoriza-
    tion from the ImageMagick Studio.

AUTHORS
 John Cristy, ImageMagick Studio LLC,
    Glenn Randers-Pehrson, ImageMagick Studio LLC.