Question

有一个程序用于捕获在python中使用mss和numpy的屏幕的一部分，我使用opencv处理接收到的流（第n fps）...我需要获取应用程序窗口，而不是捕获部分屏幕上的应用程序。是否有在python3（windows7）上使用Windows的库？如果您需要一个代码，我可以附加它。

代码：

import numpy as np
import cv2 as cv
from mss import mss

def nothing(x):
    pass

cv.namedWindow("Tracking")
cv.createTrackbar("LH", "Tracking", 0, 255, nothing)
cv.createTrackbar("LS", "Tracking", 0, 255, nothing)
cv.createTrackbar("LV", "Tracking", 0, 255, nothing)
cv.createTrackbar("UH", "Tracking", 255, 255, nothing)
cv.createTrackbar("US", "Tracking", 255, 255, nothing)
cv.createTrackbar("UV", "Tracking", 255, 255, nothing)

cv.setTrackbarPos("LH", "Tracking", 110)
cv.setTrackbarPos("LS", "Tracking", 110)
cv.setTrackbarPos("LV", "Tracking", 100)

w1 = 1205
h1 = 850
top = 40
left = 5
wid = w1 - left
hei = h1 - top

bbox = {'top': top, 'left': left, 'width': wid, 'height': hei}
sct = mss()

while 1:
    sct_img = sct.grab(bbox)
    frame = np.array(sct_img)
    hsv = cv.cvtColor(frame, cv.COLOR_BGR2HSV)

    l_h = cv.getTrackbarPos("LH", "Tracking")
    l_s = cv.getTrackbarPos("LS", "Tracking")
    l_v = cv.getTrackbarPos("LV", "Tracking")

    u_h = cv.getTrackbarPos("UH", "Tracking")
    u_s = cv.getTrackbarPos("US", "Tracking")
    u_v = cv.getTrackbarPos("UV", "Tracking")

    l_b = np.array([l_h, l_s, l_v])
    u_b = np.array([u_h, u_s, u_v])

    mask = cv.inRange(hsv, l_b, u_b)
    res = cv.bitwise_and(frame, frame, mask=mask)

    cv.imshow("frame", frame)
    cv.imshow("mask", mask)
    cv.imshow("res", res)

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

使用python3捕获计算机窗口的视频流

0 个答案: