Replace a Color (RGB) from an Image using Python Pillow

python-pillow-image-change-background.py

from PIL import Image

img = Image.open("test_image.jpg")
img = img.convert("RGB")

datas = img.getdata()

new_image_data = []
for item in datas:
    # change all white (also shades of whites) pixels to yellow
    if item[0] in list(range(190, 256)):
        new_image_data.append((255, 204, 100))
    else:
        new_image_data.append(item)
        
# update image data
img.putdata(new_image_data)

# save new image
img.save("test_image_altered_background.jpg")

# show image in preview
img.show()