How many other gung-ho boys are waiting for an official Christmas hat from WeChat like me?
Tears fell from my eyes when I finally learned the truth ......
(If you are still in the dark, please search for "Christmas Hat" in the search bar at the top of WeChat)
Well, if you won't give it to me, we'll do it ourselves. It's just a hat.
Python in hand, Christmas hat in hand!
The OpenCV library and a few pictures of Christmas hats make it easy to do with 30 or 40 lines of code. Just be careful when debugging, don't mess up the dimensions of the image coordinates and the pixel matrix index.
Broad Steps:
- Install OpenCV (search the web for tutorials);
- The cascade classifier provided by OpenCV is used to do face detection and locate the position of the face in the image;
- Adjust the position and size of the Christmas hat according to the found out face and superimpose it on the original image;
- Iterate over all faces and repeat step 3, randomizing the hat style in the process;
- Save image.
OpenCV face detection code:
import cv2
# OpenCV Face Detection
face_patterns = (
'haarcascade_frontalface_default.xml'
)
sample_image = ('img/')
faces = face_patterns.detectMultiScale(
sample_image,
scaleFactor=1.1,
minNeighbors=8,
minSize=(50, 50)
)
summarize
The above is a small introduction to the Christmas Eve Python send you a Christmas hat @ WeChat official, I hope to help you, if you have any questions please leave me a message, I will reply to you in time. Here also thank you very much for your support of my website!