# Options ## Image parameter commands -?, --help : This help information -w, --width : Set image width -h, --height : Set image height -q, --quality : Set jpeg quality <0 to 100> -r, --raw : Add raw bayer data to jpeg metadata -o, --output : Output filename (to write to stdout, use '-o -'). If not specified, no file is saved -v, --verbose : Output verbose information during run -t, --timeout : Time (in ms) before takes picture and shuts down (if not specified, set to 5s) -th, --thumb : Set thumbnail parameters (x:y:quality) -d, --demo : Run a demo mode (cycle through range of camera options, no capture) -e, --encoding : Encoding to use for output file (jpg, bmp, gif, png) -x, --exif : EXIF tag to apply to captures (format as 'key=value') -tl, --timelapse : Timelapse mode. Takes a picture every ms ## Preview parameter commands -p, --preview : Preview window settings <'x,y,w,h'> -f, --fullscreen : Fullscreen preview mode -op, --opacity : Preview window opacity (0-255) -n, --nopreview : Do not display a preview window ## Image parameter commands -sh, --sharpness : Set image sharpness (-100 to 100) -co, --contrast : Set image contrast (-100 to 100) -br, --brightness : Set image brightness (0 to 100) -sa, --saturation : Set image saturation (-100 to 100) -ISO, --ISO : Set capture ISO -vs, --vstab : Turn on video stablisation -ev, --ev : Set EV compensation -ex, --exposure : Set exposure mode (off,auto,night,nightpreview,backlight,spotlight,sports,snow,beach,verylong,fixedfps,antishake,fireworks) -awb, --awb : Set AWB mode (off,auto,sun,cloud,shade,tungsten,fluorescent,incandescent,flash,horizon) -ifx, --imxfx : Set image effect (none,negative,solarise,sketch,denoise,emboss,oilpaint,hatch,gpen,pastel,watercolour,film,blur,saturation,colourswap,washedout,posterise,colourpoint,colourbalance,cartoon) -cfx, --colfx : Set colour effect (U:V) -mm, --metering : Set metering mode (average,spot,backlit,matrix) -rot, --rotation : Set image rotation (0-359) -hf, --hflip : Set horizontal flip -vf, --vflip : Set vertical flip