convert(1) on Linux
The text c296afc38a3d, as Debian 3.0 (Woody) shipped it.
Flags it lists
-
-adjoin -
-affine -
-antialias -
-append -
-average -
-background -
-blur -
-border -
-bordercolor -
-box -
-cache -
-channel -
-charcoal -
-chop -
-clip -
-coalesce -
-colorize -
-colors -
-colorspace -
-comment -
-compose -
-compress -
-contrast -
-crop -
-cycle -
-debug -
-deconstruct -
-density -
-depth -
-despeckle -
-display -
-dispose -
-dither -
-draw -
-edge -
-emboss -
-endian -
-enhance -
-equalize -
-fill -
-filter -
-flatten -
-flip -
-flop -
-font -
-fuzz -
-gamma -
-gaussian -
-gravity -
-help -
-implode -
-intent -
-interlace -
-label -
-level -
-list -
-loop -
-map -
-mask -
-matte -
-median -
-modulate -
-monochrome -
-morph -
-mosaic -
-negate -
-noise -
-noop -
-normalize -
-opaque -
-page -
-paint -
-pen -
-ping -
-pointsize -
-preview -
-process -
-profile -
-quality -
-raise -
-region -
-resize -
-roll -
-rotate -
-sample -
-sampling_factor -
-scale -
-scene -
-seed -
-shade -
-sharpen -
-shave -
-size -
-solarize -
-spread -
-stroke -
-strokewidth -
-swirl -
-texture -
-threshold -
-tile -
-transparent -
-treedepth -
-trim -
-type -
-units -
-unsharp -
-use_pixmap -
-verbose -
-view -
-wave -
-write