[Python知识库]Python版的迷你程序——简易的图片水印

? ? ? ? 现在网络的图片基本都是带有水印的，也学一下怎么个添加，代码注释掉的都是调试过程的显示，感兴趣的可以打开瞅瞅，图片水印位置是固定在右下角的，代码的12-19行可以调整。

# -*- coding: utf-8 -*-
import os
import time
from PIL import Image

def watermark_photo(input_image_path,watermark_image_path,output_image_path):
    base_image = Image.open(input_image_path)
    watermark = Image.open(watermark_image_path).convert("RGBA")
    #base_image.show()     # 显示图片
    #watermark.show()      # 显示水印

    # 水印打在图片的位置 设置水印大小
    position = base_image.size
    newsize = (int(position[0]*8/100),int(position[0]*8/100))
    new_position = position[0]-newsize[0]-20, position[1]-newsize[1]-20
    print(position)
    print(new_position)
    print(newsize)
    watermark = watermark.resize(newsize)
    
    # 做一个透明的底片 大小同图片
    transparent = Image.new(mode='RGBA', size=position, color=(0,0,0,0))
    #transparent.show()     # 显示
    
    # 向底片添加图片
    transparent.paste(base_image, (0,0))
    #transparent.show()     # 显示
    # 向底片添加水印
    transparent.paste(watermark, new_position, watermark)
    #transparent.show()     # 显示
    
    image_mode = base_image.mode
    if image_mode == 'RGB':
        transparent = transparent.convert(image_mode)
    else:
        transparent = transparent.convert('P')
    transparent.save(output_image_path,optimize=True,quality=100)
    print("Saving " + output_image_path + " ...... ")
    

folder = "/home/aiaike/ausr/Python/miniProgram"
watermark = "/home/aiaike/ausr/Python/miniProgram/dfjbgljadfa.jpg"
os.chdir(folder)
files = os.listdir(os.getcwd())

if not os.path.isdir("output"):
    os.mkdir("output")

for f in files:
    if os.path.isfile(os.path.abspath(f)):
        if f.endswith(".png") or f.endswith(".jpg"):
            print(os.path.abspath(f))
            watermark_photo(f, watermark, "output/"+f)
            #time.sleep(27)

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