Browse Source

Made changes to test servo motor control.

master
Stelios Giakoumidis 5 years ago
parent
commit
371adad7f4
  1. 58
      camera module/main.py

58
camera module/main.py

@ -1,9 +1,13 @@
import cv2
import base64
import zmq
import servo
# Constant variables definition.
MAJOR_VERSION = cv2.getVersionMajor()
SERVO_INITIAL_X_ANGLE = 0 # The initial horizontal angle of the camera.
SERVO_INITIAL_Y_ANGLE = 0 # The initial vertical angle of the camera.
SERVO_STEP_ANGLE = 5 # The angle at which the servo motors move each frame.
DESIRED_HEIGHT = 480 # The input image will be resized to this height, preserving its aspect ratio.
BLUE_THRESHOLD = 150 # If the blue channel is bigger than this, it is considered background and removed.
BINARY_THRESHOLD = 30 # If the pixel is not brighter than this, it is removed before detection.
@ -32,30 +36,6 @@ def resizeImage(img):
img = cv2.resize(img, ( DESIRED_HEIGHT, int(width) ))
return img
def removeColors(img):
out = None
dim = img.shape
blue = img.copy()
for i in range(dim[0]):
for j in range(dim[1]):
pixel = img[i,j]
if pixel[0] > 150:
blue[i,j,:] = 255
else:
blue[i,j,:] = 0
gray = cv2.cvtColor(blue, cv2.COLOR_BGR2GRAY)
if MAJOR_VERSION == 3:
_, contours, hierarchy = cv2.findContours(gray, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)
else:
contours, hierarchy = cv2.findContours(gray, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)
if len(contours) > 0:
maxContour = max(contours, key = cv2.contourArea)
x,y,w,h = cv2.boundingRect(maxContour)
out = img[y:y+h,x:x+w,:]
return out
def findMatchingContour(img, objX, objY):
dilated = img.copy()
@ -105,7 +85,7 @@ def processImage(img):
if MAJOR_VERSION == 3:
_, contours, hierarchy = cv2.findContours(dilated, cv2.RETR_LIST, cv2.CHAIN_APPROX_SIMPLE)
else:
contours, hierarchy = cv2.findContours(gray, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)
contours, hierarchy = cv2.findContours(dilated, cv2.RETR_LIST, cv2.CHAIN_APPROX_SIMPLE)
if len(contours) > 0:
maxContour = max(contours, key = cv2.contourArea)
else:
@ -170,9 +150,10 @@ footage_socket.connect('tcp://' + client_ip.decode() + ':5555')
#camera = cv2.VideoCapture(0) # init the camera
servoX = SERVO_INITIAL_X_ANGLE
servoY = SERVO_INITIAL_Y_ANGLE
cap = cv2.VideoCapture('C:/Users/Giorgos Ger/Desktop/drone_test.mp4')
cap = cv2.VideoCapture('C:/Users/steyi/Desktop/drone_test.mp4')
if (cap.isOpened() == False):
print('Error opening stream.')
quit()
@ -189,6 +170,29 @@ while (cap.isOpened()):
jpg_as_text = base64.b64encode(buffer)
footage_socket.send(jpg_as_text)
cv2.waitKey(33)
# Move the servo motors.
if yDir == 1:
servoY = servoY + SERVO_STEP_ANGLE
if servoY > 180:
servoY = 180
servo.SetAngleUp(servoY)
elif yDir == -1:
servoY = servoY - SERVO_STEP_ANGLE
if servoY < 0:
servoY = 0
servo.SetAngleUp(servoY)
if xDir == 1:
servoX = servoX + SERVO_STEP_ANGLE
if servoX > 180:
servoX = 180
if servoX < 0:
servoX = 0
servo.SetAngleDown(servoX)
elif xDir == -1:
servoX = servoX - SERVO_STEP_ANGLE
servo.SetAngleDown(servoX)
else:
break
except KeyboardInterrupt:

Loading…
Cancel
Save