Page 457 - MDP2020-1

················································································ 명장양성프로젝트 【MDP】 과제발표회 자료집 Ⅰ | 451

4) BGR 값을 HSV 값으로 변환

import numpy as np
import cv2

color = [0,255,0]
pixel = np.uint8([[color]])
hsv = cv2.cvtColor(pixel, cv2.COLOR_BGR2HSV)
hsv = hsv[0][0]

print("bgr: ", color)
print("hsv: ", hsv)

5) 안드로이드스튜디오와 라즈베리파이 연동

import RPi.GPIO as GPIO

import time
import firebase_admin
from firebase_admin import db
from firebase_admin import credentials

GPIO.setmode(GPIO.BCM)
GPIO.setup(18, GPIO.IN)
GPIO.setup(23, GPIO.OUT)
busyStatus = ["relax", "normal", "busy"]
i = 0
temp = GPIO.input(18)

print('setting on')
cred = credentials.Certificate('/home/pi/MDP/subway-intec-9fdee5fe3d1f.json')
firebase_admin.initialize_app(cred, {'databaseURL': 'https://subway-intec.firebaseio.com/'})
ref = db.reference('reference')
print('set ref')

ref.update({'busy': busyStatus[i]})
print('set busy')
while True:
if not temp == GPIO.input(18):
if GPIO.input(18) == 1:

GPIO.output(23, True)
ref.update({'busy': busyStatus[1]})
elif GPIO.input(18) == 0:
GPIO.output(23, False)
ref.update({'busy': busyStatus[2]})

temp = GPIO.input(18)