[初学]Python的removebg库函数配置和简介

removebg库提供抠图工具，可以使用Python调用。

参考文档：

Python学习笔记——removebg库之抠图

开源社区（remove-bg）：https://github.com/brilam/remove-bg#remove_background_from_img_file

1. removebg的安装和配置

I. 使用pip命令安装，Python 3.x版本可以pip3安装

pip3 install removebg

II. API Key的获取

首先在Removebg官网上注册一个账号：https://accounts.kaleido.ai/users/sign_in

然后，在API Key界面查看自己的API Key：https://www.remove.bg/profile#api-key

注意保存API Key序列，在后续编程中会用到。

2. removebg库函数的简介【参考开源社区：https://github.com/brilam/remove-bg#remove_background_from_img_file】

I. remove_background_from_img_file

Parameter	Required	Description
img_file_path	Y	the path to the image file
size	N	the size of the output image (regular = 0.25 MP, hd = 4 MP, 4k = up to 10 MP). Default value is "regular"
bg_color	N	adds a solid color background. Can be a hex color code (e.g. 81d4fa, fff) or a color name (e.g. green).

Code Example:

from removebg import RemoveBg
rmbg = RemoveBg("YOUR-API-KEY", "error.log")
rmbg.remove_background_from_img_file("joker.jpg")

II. remove_background_from_img_url

Parameter	Required	Description
img_url	Y	the URL to the image
size	N	the size of the output image (regular = 0.25 MP, hd = 4 MP, 4k = up to 10 MP). Default value is "regular"
new_file_name	N	the new file name of the image with the background removed
bg_color	N	adds a solid color background. Can be a hex color code (e.g. 81d4fa, fff) or a color name (e.g. green).

Code Example:

from removebg import RemoveBg
rmbg = RemoveBg("YOUR-API-KEY", "error.log")
rmbg.remove_background_from_img_url("http://www.example.com/some_image.jpg")

III. remove_background_from_base64_img

Parameter	Required	Description
base64_img	Y	the base64 image string
size	N	the size of the output image (regular = 0.25 MP, hd = 4 MP, 4k = up to 10 MP). Default value is "regular"
new_file_name	N	the new file name of the image with the background removed
bg_color	N	adds a solid color background. Can be a hex color code (e.g. 81d4fa, fff) or a color name (e.g. green).

Code Example:

from removebg import RemoveBg
import base64
rmbg = RemoveBg("YOUR-API-KEY", "error.log")
with open("joker.jpg", "rb") as image_file:
	encoded_string = base64.b64encode(image_file.read())
    rmbg.remove_background_from_base64_img(encoded_string)