OpenCV简易视频处理框架
OpenCV主要色彩空间
OpenCV的位操作方法
找出视频中红色物体
import cv2
import numpy as npdef filter_out_black(src_frame):if src_frame is not None:hsv = cv2.cvtColor(src_frame, cv2.COLOR_BGR2HSV)lower_red = np.array([0, 0, 0])upper_red = np.array([180, 255, 172])# inRange()方法返回的矩阵只包含0,255 (CV_8U) 0表示不在区间内mask = cv2.inRange(hsv, lower_red, upper_red)return cv2.bitwise_and(src_frame, src_frame, mask=mask)def filter_out_red(src_frame):if src_frame is not None:hsv = cv2.cvtColor(src_frame, cv2.COLOR_BGR2HSV)lower_red = np.array([156, 43, 46])upper_red = np.array([180, 255, 255])# inRange()方法返回的矩阵只包含0,255 (CV_8U) 0表示不在区间内mask = cv2.inRange(hsv, lower_red, upper_red)return cv2.bitwise_and(src_frame, src_frame, mask=mask)srcframe = cv2.imread("12.png")
frame=filter_out_black(srcframe)
cv2.imshow("capture", frame)
cv2.imwrite("test.jpg", frame)任何程序错误，以及技术疑问或需要解答的，请添加
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