NAME

display - displays an image or image sequence on any X server.

SYNOPSIS

display [options] input-file

OVERVIEW

The display program is a member of the ImageMagick(1) suite of tools. Use it to display an image or image sequence on any X server.

For more information about the display command, point your browser to file:///usr/local/share/doc/ImageMagick-7/www/display.html or http://imagemagick.org/script/display.php.

DESCRIPTION

Image Settings: -alpha option on, activate, off, deactivate, set, opaque, copy transparent, extract, background, or shape -antialias remove pixel-aliasing -authenticate value decrypt image with this password -backdrop display image centered on a backdrop -colormap type Shared or Private -colorspace type alternate image colorspace -comment string annotate image with comment -compress type type of pixel compression when writing the image -decipher filename convert cipher pixels to plain pixels -deskew threshold straighten an image -define format:option define one or more image format options -delay centiseconds display the next image after pausing -density geometry horizontal and vertical density of the image -depth value image depth -display server display image to this X server -dispose method layer disposal method -dither method apply error diffusion to image -endian type endianness (MSB or LSB) of the image -equalize perform histogram equalization to an image -filter type use this filter when resizing an image -format "string" output formatted image characteristics -fuzz distance colors within this distance are considered equal -geometry geometry preferred size and location of the Image window -gravity type horizontal and vertical backdrop placement -identify identify the format and characteristics of the image -immutable displayed image cannot be modified -interlace type type of image interlacing scheme -interpolate method pixel color interpolation method -label string assign a label to an image -limit type value pixel cache resource limit -loop iterations loop images then exit -map type display image using this Standard Colormap -matte store matte channel if the image has one -monitor monitor progress -page geometry size and location of an image canvas -profile filename add, delete, or apply an image profile -quality value JPEG/MIFF/PNG compression level -quantize colorspace reduce colors in this colorspace -quiet suppress all warning messages -regard-warnings pay attention to warning messages -remote command execute a command in an remote display process -repage geometry size and location of an image canvas (operator) -respect-parentheses settings remain in effect until parenthesis boundary -sampling-factor geometry horizontal and vertical sampling factor -scenes range image scene range -seed value seed a new sequence of pseudo-random numbers -set property value set an image property -size geometry width and height of image -support factor resize support: > 1.0 is blurry, < 1.0 is sharp -texture filename name of texture to tile onto the image background -transparent-color color transparent color -treedepth value color tree depth -update seconds detect when image file is modified and redisplay -verbose print detailed information about the image -visual type display image using this visual type -virtual-pixel method virtual pixel access method -window id display image to background of this window -window-group id exit program when this window id is destroyed -write filename write image to a file

Image Operators: -auto-orient automatically orient image -border geometry surround image with a border of color -channel mask set the image channel mask -clip clip along the first path from the 8BIM profile -clip-path id clip along a named path from the 8BIM profile -colors value preferred number of colors in the image -contrast enhance or reduce the image contrast -crop geometry preferred size and location of the cropped image -despeckle reduce the speckles within an image -edge factor apply a filter to detect edges in the image -enhance apply a digital filter to enhance a noisy image -extent geometry set the image size -extract geometry extract area from image -flip flip image in the vertical direction -flop flop image in the horizontal direction -frame geometry surround image with an ornamental border -gamma value level of gamma correction -monochrome transform image to black and white -negate replace each pixel with its complementary color -normalize transform image to span the full range of colors -raise value lighten/darken image edges to create a 3-D effect -resample geometry change the resolution of an image -resize geometry resize the image -roll geometry roll an image vertically or horizontally -rotate degrees apply Paeth rotation to the image -sample geometry scale image with pixel sampling -segment value segment an image -sharpen geometry sharpen the image -strip strip image of all profiles and comments -threshold value threshold the image -thumbnail geometry create a thumbnail of the image -trim trim image edges

Image Sequence Operators: -coalesce merge a sequence of images -flatten flatten a sequence of images

Miscellaneous Options: -debug events display copious debugging information -help print program options -log format format of debugging information -list type print a list of supported option arguments -version print version information

In addition to those listed above, you can specify these standard X resources as command line options: -background, -bordercolor, -borderwidth, -font, -foreground, -iconGeometry, -iconic, -mattecolor, -name, -shared-memory, -usePixmap, or -title.

By default, the image format of `file' is determined by its magic number. To specify a particular image format, precede the filename with an image format name and a colon (i.e. ps:image) or specify the image type as the filename suffix (i.e. image.ps). Specify 'file' as '-' for standard input or output.

Buttons: 1 press to map or unmap the Command widget 2 press and drag to magnify a region of an image 3 press to load an image from a visual image directory

NOTE

The display program defaults to the X screen resolution. To display vector formats at their intended size, override the default resolution:

display -density 72 drawing.svg

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