Remove background color using python

import cv2
import numpy as np

image_path = 'path/to/image'  # Path to the input image
bgcolor = [255, 255, 255]  # BGR value of background color.

img = cv2.imread(image_path)
img = cv2.cvtColor(img, cv2.COLOR_BGR2BGRA)

img[np.all(img == bgcolor + [255], axis=2)] = [0,0,0,0]
cv2.imwrite('output.png', img)  # File will be saved as output.png in the current directory.

@Xaalek, this kind kf background removal only works when the image in question has a uniform background (usually the case with digitally created images). For most other images, you'll need to perform some kind of thresholding on the image such that all the background pixels bear the same value and then use this. This thresholding shall vary from dataset to dataset.

If you are looking to remove background from a single image, there are multiple websites these days that do this for you. One really good one that I know of is remove.bg. I think they also offer API.