22 lines
689 B
Python
22 lines
689 B
Python
import cv2 as cv
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import numpy as np
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img = cv.imread("./pic/2.jpg")
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imgL = np.split(img, 2, 1)[0]
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imgR = np.split(img, 2, 1)[1]
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prvs = cv.cvtColor(imgL, cv.COLOR_BGR2GRAY)
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hsv = np.zeros_like(imgL)
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hsv[..., 1] = 255
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next = cv.cvtColor(imgR, cv.COLOR_BGR2GRAY)
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flow = cv.calcOpticalFlowFarneback(prvs, next, None, 0.5, 3, 15, 3, 5, 1.2, 0)
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mag, ang = cv.cartToPolar(flow[..., 0], flow[..., 1])
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hsv[..., 0] = ang*180/np.pi/2
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hsv[..., 2] = cv.normalize(mag, None, 0, 255, cv.NORM_MINMAX)
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bgr = cv.cvtColor(hsv, cv.COLOR_HSV2BGR)
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cv.namedWindow("MotionVector", cv.WINDOW_NORMAL)
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cv.namedWindow("frame", cv.WINDOW_NORMAL)
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cv.imshow('MotionVector', bgr)
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cv.imshow("frame", img)
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cv.waitKey(100) |