import cv2
import matplotlib.pyplot as plt # 匯入 pyplot
import autocar_module as m # 匯入自訂模組
img = cv2.imread('road.jpg') # 讀取圖片
edge = m.get_edge(img) # 取得邊緣圖
plt.imshow(edge) # 顯示邊緣圖及座標
plt.show() # 顯示
import cv2
import autocar_module as m
import numpy as np
def get_roi(img):
mask = np.zeros_like(img) # 全黑遮罩
points = np.array([[[146, 539], # 建立多邊形座標
[781, 539],
[515, 417],
[296, 397]]])
cv2.fillPoly(mask, points, 255) # 繪製多邊形
roi = cv2.bitwise_and(img, mask)
return roi
#---------------------------------------------------#
img = cv2.imread('road.jpg') # 讀取圖片
edge = m.get_edge(img) # 邊緣偵測
roi = get_roi(edge) # 取得 ROI
cv2.imshow('ROI', roi)
cv2.waitKey(0)
cv2.destroyAllWindows()