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[
#usage
Example Usage
|
#options
Option Summary
]
Use the
composite
program overlaps one image over another.  See
../www/command-line-processing.html
Command Line Processing
for advice on how to structure your
composite
command or see below for example usages of the command.
Example Usage
We list a few examples of the
composite
command here to illustrate its usefulness and ease of use.  To get started, lets overlay a letter over a a rose:
composite -gravity center smile.gif  rose: rose-over.png
../images/smile.gif
smile
over
../images/rose.jpg
rose
==>
../images/rose-over.png
rose
You can create three-dimensional effect with the
Atop
:
convert -size 70x70 xc:none -fill red -draw 'circle 35,35 10,30' red-circle.png
convert -size 70x70 xc:none -draw 'circle 35,35 35,20' -negate -channel A -gaussian 0x8 white-highlight.png
composite -compose atop -geometry -13-17 white-highlight.png red-circle.png red-ball.png
../images/white-highlight.png
white highlight
atop
../images/red-circle.png
red circle
==>
../images/red-ball.png
red ball
You can find additional examples of using
composite
in
http://www.cit.gu.edu.au/~anthony/graphics/imagick6
Examples of ImageMagick Usage
.  You can find out more about them and the mathematics by looking at
http://www.w3.org/TR/SVG12/rendering.html
SVG Alpha Compositing
Option Summary
The
composite
command recognizes these options.  Click on an option to get more details about how that option works.
Option
Description
../www/command-line-options.html#affine
-affine
matrix
affine transform matrix
../www/command-line-options.html#authenticate
-authenticate
value
decrypt image with this password
../www/command-line-options.html#blend
-blend
geometry
blend images
../www/command-line-options.html#blue-primary
-blue-primary
point
chromaticity blue primary point
../www/command-line-options.html#channel
-channel
type
apply option to select image channels
../www/command-line-options.html#colors
-colors
value
preferred number of colors in the image
../www/command-line-options.html#colorspace
-colorspace
type
alternate image colorspace
../www/command-line-options.html#comment
-comment
string
annotate image with comment
../www/command-line-options.html#compose
-compose
operator
set image composite operator
../www/command-line-options.html#compress
-compress
type
image compression type
../www/command-line-options.html#debug
-debug
events
display copious debugging information
../www/command-line-options.html#define
-define
format:option
define one or more image format options
../www/command-line-options.html#density
-density
geometry
horizontal and vertical density of the image
../www/command-line-options.html#depth
-depth
value
image depth
../www/command-line-options.html#displace
-displace
geometry
shift image pixels defined by a displacement map
../www/command-line-options.html#dissolve
-dissolve
value
dissolve the two images a given percent
../www/command-line-options.html#dither
-dither
apply Floyd/Steinberg error diffusion to image
../www/command-line-options.html#encoding
-encoding
type
text encoding type
../www/command-line-options.html#endian
-endian
type
endianness (MSB or LSB) of the image
../www/command-line-options.html#extract
-extract
geometry
extract area from image
../www/command-line-options.html#filter
-filter
type
use this filter when resizing an image
../www/command-line-options.html#font
-font
name
render text with this font
../www/command-line-options.html#geometry
-geometry
geometry
perferred size or location of the image
../www/command-line-options.html#gravity
-gravity
type
horizontal and vertical text placement
../www/command-line-options.html#green-primary
-green-primary
point
chromaticity green primary point
../www/command-line-options.html#help
-help
print program options
../www/command-line-options.html#interlace
-interlace
type
type of image interlacing scheme
../www/command-line-options.html#label
-label
name
assign a label to an image
../www/command-line-options.html#level
-level
value
adjust the level of image contrast
../www/command-line-options.html#limit
-limit
type value
pixel cache resource limit
../www/command-line-options.html#log
-log
format
format of debugging information
../www/command-line-options.html#matte
-matte
store matte channel if the image has one
../www/command-line-options.html#monitor
-monitor
monitor progress
../www/command-line-options.html#monochrome
-monochrome
transform image to black and white
../www/command-line-options.html#negate
-negate
replace every pixel with its complementary color
../www/command-line-options.html#page
-page
geometry
size and location of an image canvas (setting)
../www/command-line-options.html#profile
-profile
filename
add, delete, or apply an image profile
../www/command-line-options.html#quality
-quality
value
JPEG/MIFF/PNG compression level
../www/command-line-options.html#quiet
-quiet
suppress all error or warning messages
../www/command-line-options.html#red-primary
-red-primary
point
chromaticity red primary point
../www/command-line-options.html#rotate
-rotate
degrees
apply Paeth rotation to the image
../www/command-line-options.html#sampling-factor
-sampling-factor
geometry
horizontal and vertical sampling factor
../www/command-line-options.html#scene
-scene
value
image scene number
../www/command-line-options.html#set
-set
attribute value
set an image attribute
../www/command-line-options.html#sharpen
-sharpen
geometry
sharpen the image
../www/command-line-options.html#size
-size
geometry
width and height of image
../www/command-line-options.html#stegano
-stegano
offset
hide watermark within an image
../www/command-line-options.html#strip
-strip
strip image of all profiles and comments
../www/command-line-options.html#support
-support
factor
resize support: > 1.0 is blurry,
../www/command-line-options.html#thumbnail
-thumbnail
geometry
create a thumbnail of the image
../www/command-line-options.html#tile
-tile
filename
tile image when filling a graphic primitive
../www/command-line-options.html#transform
-transform
affine transform image
../www/command-line-options.html#treedepth
-treedepth
value
color tree depth
../www/command-line-options.html#type
-type
type
image type
../www/command-line-options.html#units
-units
type
the units of image resolution
../www/command-line-options.html#unsharp
-unsharp
geometry
sharpen the image
../www/command-line-options.html#verbose
-verbose
print detailed information about the image
../www/command-line-options.html#version
-version
print version information
../www/command-line-options.html#virtual-pixel
-virtual-pixel
method
access method for pixels outside the boundaries of the image
../www/command-line-options.html#watermark
-watermark
geometry
percent brightness and saturation of a watermark
../www/command-line-options.html#white-point
-white-point
point
chromaticity white point
../www/command-line-options.html#white-threshold
-white-threshold
value
forces all pixels above the threshold into white
../www/command-line-options.html#write
-write
filename
write images to this file
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