Pixelface

It catches all faces and convert it in a Grid of Rects which are tinted with the average color of the captured video.

Usage

Run the Python script and enjoy your pixeled face.

Face Detection

The face detection runs with OpenCV using Haar Cascades (https://docs.opencv.org/3.4.1/d7/d8b/tutorial_py_face_detection.html)

Content

1.) Import

import cv2
import sys
import numpy as np
import math
import random

face_cascade = cv2.CascadeClassifier("data/haarcascade_frontalface_default.xml")
eye_cascade = cv2.CascadeClassifier("data/haarcascade_eye.xml")

2.) Capture your Webcame

cap = cv2.VideoCapture(0)
width = cap.get(cv2.CAP_PROP_FRAME_WIDTH)
height = cap.get(cv2.CAP_PROP_FRAME_HEIGHT)

3.) Add Magic

while True:
	ret, img = cap.read()
	gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)

	#detect the face
	faces = face_cascade.detectMultiScale(gray, 1.3, 5)

	for (x, y, w, h) in faces:
		
		start = [width/2, height/2]
		amount = 6
		bigPixel = (round(w/6))
		
		startY = ((y))
 		startX = ((x))

 		# Lets go through each Pixel 
		for t in range(0,amount):
	 		for i in range(0,amount):
	 			# get the average color
				average_color = gray[ (startY + t*bigPixel):(startY + t*bigPixel + bigPixel) , (startX + i*bigPixel):(startX + i*bigPixel + bigPixel)].mean()
				# go and tint it
				gray[ (startY + t*bigPixel):(startY + t*bigPixel + bigPixel) , (startX + i*bigPixel):(startX + i*bigPixel + bigPixel) ] = average_color


	# display image 
	cv2.imshow('img', gray)

	# the way out 
	k = cv2.waitKey(30) & 0xff
	if k == 27:
		break

cap.release()
cv2.destroyAllWindows()

You can also easily change the input!

Change Source

Video

cap = cv2.VideoCapture('name.format')
width = cap.get(cv2.CAP_PROP_FRAME_WIDTH)
height = cap.get(cv2.CAP_PROP_FRAME_HEIGHT)

Picture

cap = cv2.imread('name.png',cv2.IMREAD_COLOR)
height = np.size(cap, 0)
width = np.size(cap, 1)