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d3bb3ee Oct 2, 2016
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import tensorflow as tf
import scipy.misc
import model
import cv2
from subprocess import call
sess = tf.InteractiveSession()
saver = tf.train.Saver()
saver.restore(sess, "save/model.ckpt")
img = cv2.imread('steering_wheel_image.jpg',0)
rows,cols = img.shape
smoothed_angle = 0
cap = cv2.VideoCapture(0)
while(cv2.waitKey(10) != ord('q')):
ret, frame = cap.read()
image = scipy.misc.imresize(frame, [66, 200]) / 255.0
degrees = model.y.eval(feed_dict={model.x: [image], model.keep_prob: 1.0})[0][0] * 180 / scipy.pi
call("clear")
print("Predicted steering angle: " + str(degrees) + " degrees")
cv2.imshow('frame', frame)
#make smooth angle transitions by turning the steering wheel based on the difference of the current angle
#and the predicted angle
smoothed_angle += 0.2 * pow(abs((degrees - smoothed_angle)), 2.0 / 3.0) * (degrees - smoothed_angle) / abs(degrees - smoothed_angle)
M = cv2.getRotationMatrix2D((cols/2,rows/2),-smoothed_angle,1)
dst = cv2.warpAffine(img,M,(cols,rows))
cv2.imshow("steering wheel", dst)
cap.release()
cv2.destroyAllWindows()