pyhton3 + opencv
HSV色彩空间特定颜色提取 inRange函数使用实例
代码如下:
import cv2 as cv
import numpy as np
def extrace_object_demo():
capture = cv.VideoCapture(0)
while(True):
ret, frame = capture.read()
if ret == False:
break;
hsv = cv.cvtColor(frame, cv.COLOR_BGR2HSV)
lower_hsv = np.array([35, 43, 46])
upper_hsv = np.array([77, 255, 255])
mask = cv.inRange(hsv, lowerb=lower_hsv, upperb=upper_hsv)
dst = cv.bitwise_and(frame, frame, mask=mask)
cv.imshow("video", frame)
cv.imshow("mask", dst)
c = cv.waitKey(40)
if c == 27:
break
def extrace_object_demo2():
src = cv.imread("E:/opencv/sources/samples/data/opencv-logo.png")
hsv = cv.cvtColor(src, cv.