gm(1) on Linux
The text fd4b74c5aa04, as Debian 4.0 (Etch) shipped it.
Flags it lists
-
-Gaussian -
-adjoin -
-affine -
-antialias -
-append -
-authenticate -
-average -
-backdrop -
-background -
-blue-primary -
-blur -
-border -
-bordercolor -
-borderwidth -
-box -
-cache -
-channel -
-charcoal -
-chop -
-clip -
-coalesce -
-colorize -
-colormap -
-colors -
-colorspace -
-comment -
-compose -
-compress -
-contrast -
-convolve -
-crop -
-cycle -
-debug -
-deconstruct -
-define -
-density -
-depth -
-descend -
-despeckle -
-display -
-dispose -
-dissolve -
-dither -
-draw -
-edge -
-emboss -
-encoding -
-endian -
-enhance -
-equalize -
-fill -
-filter -
-flatten -
-flip -
-flop -
-font -
-foreground -
-format -
-frame -
-fuzz -
-gamma -
-gravity -
-green-primary -
-help -
-iconGeometry -
-iconic -
-immutable -
-implode -
-intent -
-interlace -
-label -
-lat -
-level -
-linewidth -
-list -
-log -
-loop -
-magnify -
-map -
-mask -
-matte -
-mattecolor -
-median -
-mode -
-modulate -
-monochrome -
-morph -
-mosaic -
-name -
-negate -
-noise -
-noop -
-normalize -
-opaque -
-page -
-paint -
-pause -
-pen -
-ping -
-pointsize -
-preview -
-process -
-profile -
-quality -
-raise -
-red-primary -
-region -
-remote -
-render -
-resample -
-resize -
-roll -
-rotate -
-sample -
-sampling-factor -
-scale -
-scene -
-scenes -
-screen -
-shade -
-shadow -
-shared-memory -
-sharpen -
-shave -
-silent -
-size -
-snaps -
-solarize -
-spread -
-stegano -
-stereo -
-stroke -
-strokewidth -
-swirl -
-text-font -
-texture -
-threshold -
-tile -
-title -
-transform -
-transparent -
-treedepth -
-trim -
-type -
-units -
-unsharp -
-update -
-use-pixmap -
-verbose -
-version -
-view -
-virtual-pixel -
-visual -
-watermark -
-wave -
-white-point -
-window -
-window-group -
-write