OpenCV – 10 lines to remove the background in an image 🖼️

Hi !

Super quick post today, with a very simple scenario:

Load and image and remove the background.

To do this, I’ll use OpenCV and cvzone. Here we can see a screenshot of my office, and the removed background sample. As usual, the threshold is the important one to manage the quality.

And the sample code:

	# Copyright (c) 2022
	# Author : Bruno Capuano
	# Create Time : 2022 June
	# Change Log :
	# – Load and image and remove the background
	# – Show the original image and the background removed image
	#
	# 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
	import cvzone
	from cvzone.SelfiSegmentationModule import SelfiSegmentation
	segmentor = SelfiSegmentation()
	# read image
	imgOffice = cv2.imread('office.jpg')
	#resize office to 640x480
	imgOffice = cv2.resize(imgOffice, (640, 480))
	green = (0, 255, 0)
	imgNoBg = segmentor.removeBG(imgOffice, green, threshold=0.50)
	# show both images
	cv2.imshow('office',imgOffice)
	cv2.imshow('office no bg',imgNoBg)
	cv2.waitKey(0)
	cv2.destroyAllWindows()

view raw opencvremovebackground.py hosted with ❤ by GitHub

In next samples, I’ll show to work with this and the camera, and even replace the bacground 😀.

Happy coding!

Greetings

El Bruno

More posts in my blog ElBruno.com.

---