python实现自动抠名字签名，比PS还快

自动抠图，真的很快，加上循环，可以抠多张签名。

#!_*_coding:utf-8_*_
#__author__:"david.z"
#首先用pip命令安装模块，pip install opencv-python

import cv2

image = cv2.imread(r'qianming.png',cv2.IMREAD_UNCHANGED)
size = image.shape

print(size,image[0][0])
for i in range(size[0]):
    for j in range(size[1]):
        if image[i][j][0]>100 and image[i][j][1]>100 and image[i][j][2]>100:
            image[i][j][3] = 0
        else:
            image[i][j][0],image[i][j][1],image[i][j][2] = 0,0,0

cv2.imwrite(r'ttt.png',image)

原图：

 效果：