python - 用名字python进行人脸识别

Question

gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)

faces = faceCascade.detectMultiScale(
    gray,
    scaleFactor=1.1,
    minNeighbors=5,
    minSize=(30, 30),
    flags=cv2.cv.CV_HAAR_SCALE_IMAGE
)

# Draw a rectangle around the faces
for (x, y, w, h) in faces:
    cv2.rectangle(frame, (x, y), (x+w, y+h), (0, 255, 0), 2)

# Display the resulting frame
cv2.imshow('Video', frame)

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

我有一个从网络摄像头检测人脸的基本算法 > 当他们出现在网络摄像头中时，我应该怎么做才能显示他们各自的名字？

请帮忙!

Answer 1

你可以用它的文本声明字体并指定它的位置。在我的示例中，它将位于矩形下方

font = cv2.FONT_HERSHEY_SIMPLEX(
        thickness = 1,
        white = (255,) * 3,
        size = 1,
        left = (x, y+h+12))

# Draw a rectangle around the faces
for (x, y, w, h) in faces:
    cv2.rectangle(frame, (x, y), (x+w, y+h), (0, 255, 0), 2)
    cv2.putText(frame, 'Identity Unknown', left, font, size, white, thickness) #this line displays the text