Paket cv2 OpenCV in Python installieren

Question

Ich habe ein Motion Detection Script mit OpenCV und Python.

import cv2

cap = cv2.VideoCapture(1)
ret, frame1 = cap.read()
ret, frame2 = cap.read()

while cap.isOpened():
    diff = cv2.absdiff(frame1, frame2)
    gray = cv2.cvtColor(diff, cv2.COLOR_BGR2GRAY)
    blur = cv2.GaussianBlur(gray, (5,5), 0)
    _, thresh = cv2.threshold(blur, 10, 255, cv2.THRESH_BINARY)
    dilated = cv2.dilate(thresh, None, iterations=3)
    contours, _ = cv2.findContours(dilated, cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE)

    for contour in contours:
        if cv2.contourArea(contour) < 300:
            continue
        (x, y, w, h) = cv2.boundingRect(contour)
        cv2.rectangle(frame1, (x, y), (x + w, y + h), (0, 255, 0), 2)

    cv2.imshow("Motion Detection", frame1)
    frame1 = frame2
    ret, frame2 = cap.read()

    if cv2.waitKey(10) == 27:  # ESC zum Beenden
        break

cap.release()
cv2.destroyAllWindows()

Aber wie kann ich das Paket cv2 installieren?

c:\test>python -m pip install cv2
ERROR: Could not find a version that satisfies the requirement cv2 (from versions: none)

[notice] A new release of pip is available: 24.3.1 -> 25.1.1
[notice] To update, run: python.exe -m pip install --upgrade pip
ERROR: No matching distribution found for cv2

Answer 1

Das Package heißt opencv-python.

python -m pip install opencv-python