#OpenCV – Replace background with video in camera feed 🎦 (Black Adam βš‘)

Hi !

A new twist on these days demos, based on a request from an online friend. Let’s remove and replace the background from our camera feed using a video. For this demo, I’m using the “Black Adam – Official Trailer 1“. And the output is kind of funny.

OpenCV Cam with VideoFile 01

Hey, funny scenario, and if you don’t want to deal with OBS, this maybe a nice to trick to have!

And the sample code:

# Copyright (c) 2022
# Author : Bruno Capuano
# Create Time : 2022 June
# Change Log :
# – Open a local camera feed using OpenCV
# – Open a video file feed using OpenCV
# – Show the original camera feed, the video frame, and the background removed feed using the video feed
#
# The MIT License (MIT)
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
import cv2
from cvzone.SelfiSegmentationModule import SelfiSegmentation
segmentor = SelfiSegmentation()
# read image
imgBg = cv2.imread('bg01.jpg')
imgBg = cv2.resize(imgBg, (320, 240))
# open camera
cap = cv2.VideoCapture(1)
capVideo = cv2.VideoCapture("BlackAdamOfficialTrailer.mp4")
while True:
# read image
ret, img = cap.read()
# read video frame
ret, videoFrame = capVideo.read()
if not ret:
break
# resize frames to 320 x 240
img = cv2.resize(img, (320, 240))
videoFrame = cv2.resize(videoFrame, (320, 240))
imgBgVideo = segmentor.removeBG(img, videoFrame , threshold=0.50)
# show both images
cv2.imshow('office',img)
cv2.imshow('Black Adam',videoFrame)
cv2.imshow('office with Black Adam',imgBgVideo)
if cv2.waitKey(1) & 0xFF == ord('q'):
break
# close camera
cap.release()
cv2.destroyAllWindows()

Happy coding!

Greetings

El Bruno

More posts in my blog ElBruno.com.


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