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Mouse_Move_Prediction.py
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Mouse_Move_Prediction.py
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import cv2
import numpy as np
mouse_position = [0, 0]
mouse_positions = []
def set_mouse_position(event, x, y, flags, param):
if event == cv2.EVENT_MOUSEMOVE:
mouse_position[0], mouse_position[1] = (x, y)
def predict_next_position(previous_mouse_positions):
n = len(previous_mouse_positions)
if n == 0:
return [0, 0]
if n == 1:
return previous_mouse_positions[0]
else:
delta_xs = []
delta_ys = []
j = n - 10 if n - 10 > 0 else 0 # calculate deltas from a max of 10 prev positions
c = n - 1 - j;
for i in range(n - 1, j, -1):
delta_x = (previous_mouse_positions[i][0] - previous_mouse_positions[i - 1][0]) * c
delta_xs.append(delta_x)
delta_y = (previous_mouse_positions[i][1] - previous_mouse_positions[i - 1][1]) * c
delta_ys.append(delta_y)
c -= 1
average_delta_x = sum(delta_xs) / float(len(delta_xs))
average_delta_y = sum(delta_ys) / float(len(delta_ys))
return (
round(previous_mouse_positions[n - 1][0] + average_delta_x),
round(previous_mouse_positions[n - 1][1] + average_delta_y),
)
def draw_cross(image, position, color):
cv2.line(image, (position[0] - 5, position[1] - 5), (position[0] + 5, position[1] + 5), color, 2)
cv2.line(image, (position[0] + 5, position[1] - 5), (position[0] - 5, position[1] + 5), color, 2)
blank = np.zeros((500, 500, 3), np.uint8)
cv2.namedWindow('frame', cv2.WINDOW_AUTOSIZE)
cv2.setMouseCallback('frame', set_mouse_position)
while True:
mouse_positions.append(list(mouse_position))
predicted_mouse_position = predict_next_position(mouse_positions)
draw_cross(blank, mouse_position, (255, 255, 255))
draw_cross(blank, predicted_mouse_position, (255, 0, 0))
cv2.imshow('frame', blank)
blank = np.zeros((500, 500, 3), np.uint8)
# end program
if cv2.waitKey(1) & 0xFF == ord('q'):
print('Exited.')
break
cv2.destroyAllWindows()