The face detector for anime/manga using OpenCV.
Original release since 2011 at OpenCVによるアニメ顔検出ならlbpcascade_animeface.xml (in Japanese)
Download and place the cascade file into your project directory.
wget https://raw.githubusercontent.com/nagadomi/lbpcascade_animeface/master/lbpcascade_animeface.xml
import cv2
import sys
import os.path
def detect(filename, cascade_file = "../lbpcascade_animeface.xml"):
if not os.path.isfile(cascade_file):
raise RuntimeError("%s: not found" % cascade_file)
cascade = cv2.CascadeClassifier(cascade_file)
image = cv2.imread(filename, cv2.IMREAD_COLOR)
gray = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)
gray = cv2.equalizeHist(gray)
faces = cascade.detectMultiScale(gray,
# detector options
scaleFactor = 1.1,
minNeighbors = 5,
minSize = (24, 24))
for (x, y, w, h) in faces:
cv2.rectangle(image, (x, y), (x + w, y + h), (0, 0, 255), 2)
cv2.imshow("AnimeFaceDetect", image)
cv2.waitKey(0)
cv2.imwrite("out.png", image)
if len(sys.argv) != 2:
sys.stderr.write("usage: detect.py <filename>\n")
sys.exit(-1)
detect(sys.argv[1])Run
python detect.py imas.jpg
I am providing similar project at https://github.com/nagadomi/animeface-2009. animeface-2009 is my original work that was made before libcascade_animeface. The detection accuracy is higher than this project. However, installation of that is a bit complicated. Also I am providing a face cropping script using animeface-2009.