1compare(1) General Commands Manual compare(1)
2
6 compare - mathematically and visually annotate the difference between
7 an image and its reconstruction.
8
10 compare input-file input-file [options] output-file
11
13 The compare program is a member of the ImageMagick(1) suite of tools.
14 Use it to mathematically and visually annotate the difference between
15 an image and its reconstruction.
16 For more information about the compare command, point your browser to
18 file:///usr/share/doc/ImageMagick-6.6.4/www/compare.html or
19 http://www.imagemagick.org/script/compare.php.
20
22 Image Settings:
23 -authenticate value decrypt image with this password
24 -channel type apply option to select image channels
25 -colorspace type alternate image colorspace
26 -compose operator set image composite operator
27 -compress type type of pixel compression when writing the image
28 -decipher filename convert cipher pixels to plain pixels
29 -define format:option
30 define one or more image format options
31 -density geometry horizontal and vertical density of the image
32 -depth value image depth
33 -encipher filename convert plain pixels to cipher pixels
34 -extract geometry extract area from image
35 -format "string" output formatted image characteristics
36 -fuzz distance colors within this distance are considered equal
37 -identify identify the format and characteristics of the
38 image
39 -interlace type type of image interlacing scheme
40 -highlight-color color
41 emphasize pixel differences with this color
42 -limit type value pixel cache resource limit
43 -lowlight-color color
44 de-emphasize pixel differences with this color
45 -metric type measure differences between images with this
46 metric
47 -monitor monitor progress
48 -profile filename add, delete, or apply an image profile
49 -quality value JPEG/MIFF/PNG compression level
50 -quiet suppress all warning messages
51 -quantize colorspace reduce colors in this colorspace
52 -regard-warnings pay attention to warning messages
53 -sampling-factor geometry
54 horizontal and vertical sampling factor
55 -seed value seed a new sequence of pseudo-random numbers
56 -set attribute value set an image attribute
57 -size geometry width and height of image
58 -subimage-search search for subimage
59 -transparent-color color
60 transparent color
61 -type type image type
62 -verbose print detailed information about the image
63 -virtual-pixel method
64 virtual pixel access method
65 Miscellaneous Options:
67 -debug events display copious debugging information
68 -help print program options
69 -log format format of debugging information
70 -list type print a list of supported option arguments
71 -version print version information
72 By default, the image format of `file' is determined by its magic num‐
74 ber. To specify a particular image format, precede the filename with
75 an image format name and a colon (i.e. ps:image) or specify the image
76 type as the filename suffix (i.e. image.ps). Specify 'file' as '-' for
77 standard input or output.
78
80 ImageMagick(1)
81
84 Copyright (C) 1999-2010 ImageMagick Studio LLC. Additional copyrights
85 and licenses apply to this software, see
86 file:///usr/share/doc/ImageMagick-6.6.4/www/license.html or
87 http://www.imagemagick.org/script/license.php
88ImageMagick Date: 2009/01/10 01:00:00 compare(1)