カメラモジュール導入
カメラモジュールを購入したので、テストする。
Raspberry PiモデルA、B、B+、コンピュート用の高精細ビデオカメラ。 Omnivision 5647センサ、焦点固定モジュールに内蔵 5メガピクセルセンサ 内蔵IRフィルタ 静止画像の解像度: 2592 x 1944 最大動画解像度: 1080 p 最大フレームレート: 30fps サイズ: 20 x 25 x 10 mm フラットリボンケーブルによるRaspberry Piコンピュータボード上の15ピンMIPIカメラシリアルインターフェイス(CSI)コネクタS5への接続 接続用フレキシケーブル長さは約155mmです
差し込む
起動する
raspi-config
raspi-config から、5 Enable Camera で、 reboot させられる。
用意されているプログラムを試す
raspistill
静止画撮影
raspistill raspistill Camera App v1.3.8 Runs camera for specific time, and take JPG capture at end if requested usage: raspistill [options] Image parameter commands -?, --help : This help information -w, --width : Set image width <size> -h, --height : Set image height <size> -q, --quality : Set jpeg quality <0 to 100> -r, --raw : Add raw bayer data to jpeg metadata -o, --output : Output filename <filename> (to write to stdout, use '-o -'). If not specified, no file is saved -l, --latest : Link latest complete image to filename <filename> -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) 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 <t>ms -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 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 -set, --settings : Retrieve camera settings and write to stdout -cs, --camselect : Select camera <number>. Default 0 -bm, --burst : Enable 'burst capture mode' -md, --mode : Force sensor mode. 0=auto. See docs for other modes available -dt, --datetime : Replace frame number in file name with DateTime (YearMonthDayHourMinSec) -ts, --timestamp : Replace frame number in file name with unix timestamp (seconds since 1900) 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 stabilisation -ev, --ev : Set EV compensation -ex, --exposure : Set exposure 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 (0-359) -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 -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)) Notes Exposure mode options : off,auto,night,nightpreview,backlight,spotlight,sports,snow,beach,verylong,fixedfps,antishake,fireworks AWB mode options : off,auto,sun,cloud,shade,tungsten,fluorescent,incandescent,flash,horizon Image Effect mode options : none,negative,solarise,sketch,denoise,emboss,oilpaint,hatch,gpen,pastel,watercolour,film,blur,saturation,colourswap,washedout,posterise,colourpoint,colourbalance,cartoon Metering Mode options : average,spot,backlit,matrix Dynamic Range Compression (DRC) options : off,low,med,high Preview parameter commands -gs, --glscene : GL scene square,teapot,mirror,yuv,sobel -gw, --glwin : GL window settings <'x,y,w,h'>
とのことなので、
$ raspistill -o mod.jpeg
してみたところ、、、X window 立ち上げてないのに、モニターに映像が写った！ とにかく、デフォルトでは、プレビューする様だ。
$ raspistill -w 480 -h 360 -n -o mod.jpg $ fim test.jpg
raspivid
動画撮影
raspivid Camera App v1.3.12 Display camera output to display, and optionally saves an H264 capture at requested bitrate usage: raspivid [options] Image parameter commands -?, --help : This help information -w, --width : Set image width <size>. Default 1920 -h, --height : Set image height <size>. Default 1080 -b, --bitrate : Set bitrate. Use bits per second (e.g. 10MBits/s would be -b 10000000) -o, --output : Output filename <filename> (to write to stdout, use '-o -') -v, --verbose : Output verbose information during run -t, --timeout : Time (in ms) to capture for. If not specified, set to 5s. Zero to disable -d, --demo : Run a demo mode (cycle through range of camera options, no capture) -fps, --framerate : Specify the frames per second to record -e, --penc : Display preview image *after* encoding (shows compression artifacts) -g, --intra : Specify the intra refresh period (key frame rate/GoP size). Zero to produce an initial I-frame and then just P-frames. -pf, --profile : Specify H264 profile to use for encoding -td, --timed : Cycle between capture and pause. -cycle on,off where on is record time and off is pause time in ms -s, --signal : Cycle between capture and pause on Signal -k, --keypress : Cycle between capture and pause on ENTER -i, --initial : Initial state. Use 'record' or 'pause'. Default 'record' -qp, --qp : Quantisation parameter. Use approximately 10-40. Default 0 (off) -ih, --inline : Insert inline headers (SPS, PPS) to stream -sg, --segment : Segment output file in to multiple files at specified interval <ms> -wr, --wrap : In segment mode, wrap any numbered filename back to 1 when reach number -sn, --start : In segment mode, start with specified segment number -sp, --split : In wait mode, create new output file for each start event -c, --circular : Run encoded data through circular buffer until triggered then save -x, --vectors : Output filename <filename> for inline motion vectors -cs, --camselect : Select camera <number>. Default 0 -set, --settings : Retrieve camera settings and write to stdout -md, --mode : Force sensor mode. 0=auto. See docs for other modes available -if, --irefresh : Set intra refresh type -fl, --flush : Flush buffers in order to decrease latency H264 Profile options : baseline,main,high H264 Intra refresh options : cyclic,adaptive,both,cyclicrows 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 stabilisation -ev, --ev : Set EV compensation -ex, --exposure : Set exposure 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 (0-359) -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 -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)) Notes Exposure mode options : off,auto,night,nightpreview,backlight,spotlight,sports,snow,beach,verylong,fixedfps,antishake,fireworks AWB mode options : off,auto,sun,cloud,shade,tungsten,fluorescent,incandescent,flash,horizon Image Effect mode options : none,negative,solarise,sketch,denoise,emboss,oilpaint,hatch,gpen,pastel,watercolour,film,blur,saturation,colourswap,washedout,posterise,colourpoint,colourbalance,cartoon Metering Mode options : average,spot,backlit,matrix Dynamic Range Compression (DRC) options : off,low,med,high
とりあえず動かすために
raspivid -d
おなじく、モニターに映像が出る！
$ raspivid -o video.h264 -t 4000 -w 640 -h 480 $ omxplayer video.h264
おや？ ４秒の動画のはず（撮影には４秒かかる）のに、再生が一瞬で終わるぞ・・・。 フレームレートや何やらが問題らしい。 だから、情報を足してやればいいとか言うのだが、、、
# apt-get install gpac
して、
$ raspivid -o video.h264 -fps 30 -t 4000 -w 640 -h 480 $ MP4Box -fps 30 -add video.h264 video.mp4 $ omxplayer video.mp4
おぉ、、、確かに、きちんと再生された。
しかし不思議だ
$ omxplayer video.mp4 Video codec omx-h264 width 640 height 480 profile 100 fps 30.000000 Subtitle count: 0, state: off, index: 1, delay: 0 V:PortSettingsChanged: 640x480@30.00 interlace:0 deinterlace:0 anaglyph:0 par:1.00 layer:0 alpha:255 have a nice day ;)
は、正常に再生されるのに、
$ omxplayer --fps=30 video.h264 Video codec omx-h264 width 640 height 480 profile 100 fps 30.000000 Subtitle count: 0, state: off, index: 1, delay: 0 V:PortSettingsChanged: 640x480@30.00 interlace:0 deinterlace:0 anaglyph:0 par:1.00 layer:0 alpha:255 have a nice day ;)
は、高速で終わってしまう。
mjpg-streamer(モジュール対応）
jacksonliam の、カメラモジュール対応 mjpg-streamer を入れます。 gitから入手して、コンパイルし直す。
# git clone https://github.com/jacksonliam/mjpg-streamer.git mjpg-streamer # cd mjpg-streamer/mjpg-streamer-experimental/ # make
そして、
./mjpg_streamer -o "./output_http.so -w ./www -p 8080" -i "./input_raspicam.so -fps 30 -x 320 -y 240"
Python からカメラモジュールを触る
ドキュメント Python picamera - Raspberry Pi Documentation
#!/usr/bin/python # coding=utf-8 import os import time import picamera camera = picamera.PiCamera() camera.resolution = (640, 480) # 静止画撮影 camera.start_preview() camera.capture('test.jpg') time.sleep(3) camera.stop_preview() # 動画画撮影 camera.start_preview() camera.start_recording('video.h264') #time.sleep(3) camera.wait_recording(3) camera.stop_recording() camera.stop_preview() # フレームレート情報を足す os.system('/usr/bin/MP4Box -add video.h264 video.mp4')
