会python真的可以为所欲为0(回)
352天前
这里还有人吗1(回)
537天前这里还有人吗0(回)
537天前
每天面对着电脑屏幕，敲打键盘。我所面对的并不只是代码，而是一种生活方式。0(回)
761天前到处都是羊，不想上班0(回)
841天前
鸽子
0(回)
845天前import cv2 |
face_cascade = cv2.CascadeClassifier('haarcascade_frontalface_default.xml') |
# https://github.com/opencv/opencv/blob/master/data/haarcascades/haarcascade_frontalface_default.xml |
def detect_faces(image): |
gray_image = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY) |
faces = face_cascade.detectMultiScale(gray_image, scaleFactor=1.1, minNeighbors=5, minSize=(30, 30)) |
return faces |
def main(): |
image = cv2.imread('test.jpg') |
faces = detect_faces(image) |
for (x, y, w, h) in faces: |
cv2.rectangle(image, (x, y), (x + w, y + h), (0, 255, 0), 2) |
cv2.imshow('Faces Detected', image) |
cv2.waitKey(0) |
cv2.destroyAllWindows() |
if __name__ == '__main__': |
main() |
