def detect(self):
_, img = self.cap.read()
img = cv2.resize(img, (self.width, self.height))
frame = np.zeros((self.detection_frame, self.detection_frame))
img_thresh = self.apply_threshold(img)
contours = cf.find_contours(img_thresh, square=True)
for cnt, pts in contours:
pts = mf.arrange_points(pts)
frame = cf.warp_image(img_thresh, pts, frame)
frame_inv = cf.invert(frame)
frame_inv = cf.crop_square(frame_inv, 20)
shapes = len(cf.find_contours(frame_inv, 0, 0))
place = ""
if shapes == 2:
place = "Pasillo"
elif shapes == 3:
place = "Sala"
else:
place = "Cocina"
printer.print_poly(img, pts, thickness=8)
printer.print_text(img, pts[0][0] - 40, 40,
("Frame detected", (255, 0, 0), 3),
(f"{shapes} detected", (0, 255, 0), 3),
(f"{place}", (0, 0, 255), 3))
cv2.imshow("a", frame)
cv2.imshow("b", img)
cv2.imshow("c", img_thresh)
import socket
import fcntl
import struct
from util import printer
def get_ip_address(ifname):
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
return socket.inet_ntoa(fcntl.ioctl(s.fileno(), 0x8915, struct.pack("256s", ifname[:15]))[20:24]) # SIOCGIFADDR
printer = printer.ThermalPrinter()
printer.print_text("Good Day!")
printer.linefeed()
printer.print_text("My ip address is:")
printer.linefeed()
printer.print_text(get_ip_address("eth0"))
printer.linefeed(3)
#!/usr/bin/env python
import RPi.GPIO as GPIO
import time
from util import printer
GPIO.setmode(GPIO.BCM)
GPIO.setup(11, GPIO.IN)
#initialise a previous input variable to 0 (assume button not pressed last)
prev_input = True
printer = printer.ThermalPrinter()
while True:
input = GPIO.input(11) #take a reading
#if the last reading was low and this one high, print
if ((not prev_input) and input):
printer.print_text("Button pressed!")
printer.linefeed(3)
prev_input = input #update previous input
time.sleep(0.1) #slight pause to debounce
from util import printer
printer = printer.ThermalPrinter()
printer.print_text("Hello!")
printer.linefeed(3)