라즈베리파이 Camera 사용

Posted on: 2019년 10월 11일 2019년 10월 11일
Categories: 강의자료, 라즈베리파이

카메라 연결 : 케이블의 파랑 부분이 LAN포트 쪽을 향해 연결하면 됨
카메라 인터페이스 활성화
1. sudo raspi-config –> 5 Interfaceing Options —> P1 Camera —> Enable
picamera
1. picamera 패키지 설치
  1. sudo apt-get install python-picamera
2. picamera 지원 파일 포맷
  1. 영상 전용 : jpeg, png, gif, bmp, yuv, rgb, rgba, bgr, bgra
  2. 동영상 : h264, mjpeg, yuv, rgb, rgba, bgr, bgra
  3. h264가 압축률이 가장 좋다
3. picamera 매뉴얼 : https://picamera.readthedocs.org
카메라 설정 확인 : vcgencmd get_camera
1. supported=1이 나오면 인터페이스 활성화 성공, 0이면 실패
2. detected = 1이 나오면 카메라 찾음, 0이면 못찾음
카메라 테스트
1. raspistill -o test.jpg –> 사진 1장 찍어 test.jpg로 저장
2. raspivid -t 10000 –> 비디오를 10초간 찍어서 HDMI 모니터에 출력
  1. 모니터 연결이 없으면 출력 안됨

사진 찍기 : take_picture.py

import picamera, time

Camera = picamera.PiCamera()
Camera.resolution = (1920, 1080)
#Camera.rotation = 180
#Camera.hflip = True
#Camera.start_preview()
print('Camera Start')

try:
    while True:
        input();
        str = time.ctime() + '.jpg'
        Camera.capture(str)
        print(str + ' file created')
except KeyboardInterrupt:
    print('Camera Stop')
    #Camera.stop_preview()

import picamera, time

Camera = picamera.PiCamera()

Camera.resolution = (1920, 1080)

#Camera.rotation = 180

#Camera.hflip = True

#Camera.start_preview()

print('Camera Start')

try:

while True:

input();

str = time.ctime() + '.jpg'

Camera.capture(str)

print(str + ' file created')

except KeyboardInterrupt:

print('Camera Stop')

#Camera.stop_preview()

동영상 찍기 : cam_record.py

import picamera, time

Camera = picamera.PiCamera()
Camera.framerate = 30
Camera.resolution = (1920, 1080)
#Camera.rotation = 180
#Camera.hflip = True
Camera.start_recording('movie.h264', format='h264')
print('Camera Recording Start')

try:
    while True:
        print('frame number : %d' % Camera.frame.index)
        time.sleep(1)
except KeyboardInterrupt:
    print('Camera Recording Stop')
    Camera.stop_recording()

import picamera, time

Camera = picamera.PiCamera()

Camera.framerate = 30

Camera.resolution = (1920, 1080)

#Camera.rotation = 180

#Camera.hflip = True

Camera.start_recording('movie.h264', format='h264')

print('Camera Recording Start')

try:

while True:

print('frame number : %d' % Camera.frame.index)

time.sleep(1)

except KeyboardInterrupt:

print('Camera Recording Stop')

Camera.stop_recording()

버튼 이용하여 사진 찍기(인터럽트 사용) : btn_take_picture.py

import picamera, time
import RPi.GPIO as gpio

SW = 16

Camera = picamera.PiCamera()
Camera.resolution = (1920, 1080)
#Camera.rotation = 180
#Camera.hflip = True
#Camera.start_preview()

gpio.setmode(gpio.BCM)
gpio.setup(SW, gpio.IN)


def push_callback(channel):
    fname = time.ctime() + '.jpg'
    fname = fname.replace(' ', '_')
    print(fname + ' file created')
    Camera.capture(fname)


gpio.add_event_detect(SW, gpio.FALLING, callback=push_callback)


print('Camera Start')
try:
    while True:
        time.sleep(10)
except KeyboardInterrupt:
    print('Camera Stop')
    #Camera.stop_preview()

import picamera, time

import RPi.GPIO as gpio

SW = 16

Camera = picamera.PiCamera()

Camera.resolution = (1920, 1080)

#Camera.rotation = 180

#Camera.hflip = True

#Camera.start_preview()

gpio.setmode(gpio.BCM)

gpio.setup(SW, gpio.IN)

def push_callback(channel):

fname = time.ctime() + '.jpg'

fname = fname.replace(' ', '_')

print(fname + ' file created')

Camera.capture(fname)

gpio.add_event_detect(SW, gpio.FALLING, callback=push_callback)

print('Camera Start')

try:

while True:

time.sleep(10)

except KeyboardInterrupt:

print('Camera Stop')

#Camera.stop_preview()

버튼 이용하여 동영상 찍기(인터럽트 사용) : btn_cam_record.py

import picamera, time
import RPi.GPIO as gpio

SW = 16

Camera = picamera.PiCamera()
Camera.framerate = 30
Camera.resolution = (1920, 1080)
#Camera.rotation = 180
#Camera.hflip = True

gpio.setmode(gpio.BCM)
gpio.setup(SW, gpio.IN)

ing = 1
fname = '1'
def push_callback(channel):
    global ing, fname

    ing = (ing + 1) % 2

    if ing == 0:
        fname = time.ctime() + '.h264'
        fname = fname.replace(' ', '_')
        print('Camera Recording Start')
        Camera.start_recording(fname, format='h264')
    else:
        print(fname + ' file created')
        print('Camera Recording Stop\n\n')
        Camera.stop_recording()


gpio.add_event_detect(SW, gpio.FALLING, callback=push_callback)


try:
    while True:
        time.sleep(1)
except KeyboardInterrupt:
    if ing == 0:
        Camera.stop_recording()

import picamera, time

import RPi.GPIO as gpio

SW = 16

Camera = picamera.PiCamera()

Camera.framerate = 30

Camera.resolution = (1920, 1080)

#Camera.rotation = 180

#Camera.hflip = True

gpio.setmode(gpio.BCM)

gpio.setup(SW, gpio.IN)

ing = 1

fname = '1'

def push_callback(channel):

global ing, fname

ing = (ing + 1) % 2

if ing == 0:

fname = time.ctime() + '.h264'

fname = fname.replace(' ', '_')

print('Camera Recording Start')

Camera.start_recording(fname, format='h264')

else:

print(fname + ' file created')

print('Camera Recording Stop\n\n')

Camera.stop_recording()

gpio.add_event_detect(SW, gpio.FALLING, callback=push_callback)

try:

while True:

time.sleep(1)

except KeyboardInterrupt:

if ing == 0:

Camera.stop_recording()

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