#OpenCV – 10 lines to remove the background in an image πŸ–ΌοΈ

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.

Removed Background

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 640×480
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()

In next samples, I’ll show to work with this and the camera, and even replace the bacground πŸ˜€

Happy coding!

Greetings

El Bruno

More posts in my blog ElBruno.com.


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