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于 2019-06-20 12:42:05 发布

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分类专栏： python+opencv

本文链接：https://blog.youkuaiyun.com/weixin_42512266/article/details/93012024

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# created by Huang Lu
# 28/08/2016 14:46:31 
# Department of EE, Tsinghua Univ.

import cv2
import numpy as np

cap = cv2.VideoCapture(0)

# set blue thresh
lower_blue=np.array([78,43,46])
upper_blue=np.array([110,255,255])

while(1):
    # get a frame and show
    ret, frame = cap.read()
    cv2.imshow('Capture', frame)

    # change to hsv model
    hsv = cv2.cvtColor(frame, cv2.COLOR_BGR2HSV)

    # get mask
    mask = cv2.inRange(hsv, lower_blue, upper_blue)
    cv2.imshow('Mask', mask)

    # detect blue
    res = cv2.bitwise_and(frame, frame, mask=mask)
    cv2.imshow('Result', res)

    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

cap.release()
cv2.destroyAllWindows()