Raspberry Piのカメラで静止画を撮る時のオプションメモ:fswebcam/USBカメラ時とraspistill/公式カメラ /usePocket.com

2024.12.04

Raspberry Piのカメラで静止画を撮る時のオプションメモ:fswebcam/USBカメラ時とraspistill/公式カメラ

★fswebcamの基本
fswebcam -D 3 -S 10 -r 1280x720 capture.jpg

 -?, --help                   Display this help page and exit.
 -c, --config       Load configuration from file.
 -q, --quiet                  Hides all messages except for errors.
 -v, --verbose                Displays extra messages while capturing
     --version                Displays the version and exits.
 -l, --loop          Run in loop mode.
 -b, --background             Run in the background.
 -o, --output       Output the log to a file.
 -d, --device           Sets the source to use.
 -i, --input     Selects the input to use.
 -t, --tuner          Selects the tuner to use.
 -f, --frequency      Selects the frequency use.
 -p, --palette          Selects the palette format to use.
 -D, --delay          ★Sets the pre-capture delay time. (seconds)
 -r, --resolution       ★Sets the capture resolution.
     --fps         Sets the capture frame rate.
 -F, --frames         Sets the number of frames to capture.
 -S, --skip           ★Sets the number of frames to skip.
     --dumpframe    Dump a raw frame to file.
 -s, --set =     Sets a control value.
     --revert                 Restores original captured image.
     --flip        ★Flips the image. (h, v)
     --crop [,] Crop a part of the image.
     --scale            Scales the image.
     --rotate          ★Rotates the image in right angles.
     --deinterlace            Reduces interlace artifacts.
     --invert                 Inverts the images colours.
     --greyscale              ★Removes colour from the image.
     --swapchannels     Swap channels c1 and c2.
     --no-banner              ★Hides the banner.
     --top-banner             Puts the banner at the top.
     --bottom-banner          Puts the banner at the bottom. (Default)
     --banner-colour  Sets the banner colour. (#AARRGGBB)
     --line-colour    Sets the banner line colour.
     --text-colour    Sets the text colour.
     --font <[name][:size]>   Sets the font and/or size.
     --no-shadow              Disables the text shadow.
     --shadow                 Enables the text shadow.
     --title            ★Sets the main title. (top left)
     --no-title               ★Clears the main title.
     --subtitle         ★Sets the sub-title. (bottom left)
     --no-subtitle            ★Clears the sub-title.
     --timestamp      ★Sets the timestamp format. (top right)
     --no-timestamp           ★Clears the timestamp.
     --gmt                    Use GMT instead of local timezone.
     --info             Sets the info text. (bottom right)
     --no-info                Clears the info text.
     --underlay    Sets the underlay image.
     --no-underlay            Clears the underlay.
     --overlay     Sets the overlay image.
     --no-overlay             Clears the overlay.
     --jpeg           ★Outputs a JPEG image. (-1, 0 - 95)
     --png            ★Outputs a PNG image. (-1, 0 - 10)
     --save         Save image to file.
     --exec          Execute a command and wait for it to complete.

★raspistill基本

raspistill -o capture.jpg

-q, --quality   : ★Set jpeg quality <0 to 100>
-r, --raw       : Add raw bayer data to jpeg metadata
-l, --latest    : Link latest complete image to filename 
-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) or none
-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') or none
-tl, --timelapse        : Timelapse mode. Takes a picture every ms. %d == frame number (Try: -o img_%04d.jpg)
-fp, --fullpreview      : Run the preview using the still capture resolution (may reduce preview fps)
-k, --keypress  : Wait between captures for a ENTER, X then ENTER to exit
-s, --signal    : Wait between captures for a SIGUSR1 or SIGUSR2 from another process
-g, --gl        : Draw preview to texture instead of using video render component
-gc, --glcapture        : Capture the GL frame-buffer instead of the camera image
-bm, --burst    : Enable 'burst capture mode'
-dt, --datetime : Replace output pattern (%d) with DateTime (MonthDayHourMinSec)
-ts, --timestamp        : Replace output pattern (%d) with unix timestamp (seconds since 1970)
-fs, --framestart       : Starting frame number in output pattern(%d)
-rs, --restart  : JPEG Restart interval (default of 0 for none)

GL parameter commands

-gs, --glscene  : GL scene square,teapot,mirror,yuv,sobel,vcsm_square
-gw, --glwin    : GL window settings <'x,y,w,h'>

Common Settings commands

-?, --help      : This help information
-w, --width     : ★Set image width 
-h, --height    : ★Set image height 
-o, --output    : ★Output filename  (to write to stdout, use '-o -'). If not specified, no file is saved
-v, --verbose   : Output verbose information during run
-cs, --camselect        : Select camera . Default 0
-md, --mode     : Force sensor mode. 0=auto. See docs for other modes available
-gps, --gpsdexif        : Apply real-time GPS information to output (e.g. EXIF in JPG, annotation in video (requires libgps.so.23)

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
-dn, --dispnum  : Display on which to display the preview window (dispmanx/tvservice numbering)

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 stabilisation
-ev, --ev       : Set EV compensation - steps of 1/6 stop
-ex, --exposure : Set exposure mode (see Notes)
-fli, --flicker : Set flicker avoid mode (see Notes)
-awb, --awb     : Set AWB mode (see Notes)
-ifx, --imxfx   : Set image effect (see Notes)
-cfx, --colfx   : Set colour effect (U:V)
-mm, --metering : Set metering mode (see Notes)
-rot, --rotation        : ★Set image rotation (0, 90, 180, or 270)
-hf, --hflip    : ★Set horizontal flip
-vf, --vflip    : ★Set vertical flip
-roi, --roi     : Set region of interest (x,y,w,d as normalised coordinates [0.0-1.0])
-ss, --shutter  : ★Set shutter speed in microseconds
-awbg, --awbgains       : Set AWB gains - AWB mode must be off
-drc, --drc     : Set DRC Level (see Notes)
-st, --stats    : Force recomputation of statistics on stills capture pass
-a, --annotate  : Enable/Set annotate flags or text
-3d, --stereo   : Select stereoscopic mode
-dec, --decimate        : Half width/height of stereo image
-3dswap, --3dswap       : Swap camera order for stereoscopic
-ae, --annotateex       : Set extra annotation parameters (text size, text colour(hex YUV), bg colour(hex YUV), justify, x, y)
-ag, --analoggain       : Set the analog gain (floating point)
-dg, --digitalgain      : Set the digital gain (floating point)
-set, --settings        : Retrieve camera settings and write to stdout
-fw, --focus    : Draw a window with the focus FoM value on the image.

USBカメラの検出チェックは「lsusb」、公式カメラの検出は「vcgencmd get_camera」

Category:#電子工作 Raspberry Pi、Arduinoなど

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