我可以帮助您翻译。这是需要翻译的内容:
如何在Python中创建一个接受图像文件(而不是图像文件名)的函数。简单来说,就像下面这样:
FaceController.py
import cv2
from Computer_Vision import Face_Detector as FD
def detectface():
img = cv2.imread('DSC_1902.JPG')
FD.detect(img)
detectface()
Face_Detector.py
import cv2
def detect(img):
face_cascade = cv2.CascadeClassifier('haarcascade_frontalface_default.xml')
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
faces = face_cascade.detectMultiScale(gray, 1.3, 5)
for (x,y,w,h) in faces:
img = cv2.rectangle(img,(x,y),(x+w,y+h),(255,0,0),2)
cv2.namedWindow('img',cv2.WINDOW_NORMAL)
cv2.imshow('img', img)
cv2.waitKey(0)
cv2.destroyAllWindows()
cv2.imwrite('messigray.png', img)
return img
错误:
OpenCV Error: Assertion failed (!empty()) in cv::CascadeClassifier::detectMultiScale, file C:\projects\opencv-python\opencv\modules\objdetect\src\cascadedetect.cpp, line 1698
faces = face_cascade.detectMultiScale(gray, 1.3, 5)
cv2.error: C:\projects\opencv-python\opencv\modules\objdetect\src\cascadedetect.cpp:1698: error: (-215) !empty() in function cv::CascadeClassifier::detectMultiScale
img
是空的。请检查文件是否存在,并且成功读取它。 - Kinght 金