简介
用python批量压缩图片,把文件夹或图片直接拖入即可
需要 needs
python 3
pillow (用pip install pillow来安装即可)
用法 usage
把文件夹或图片直接拖入即可。如果拖入的是文件夹,则会遍历子文件夹把所有图片都压缩了。
注意,压缩后的文件会直接替换原来的文件,文件名不变,尺寸不变,只改变压缩质量。
文件的开头有两个变量:
size_cut = 4 表示大于4mb的图片都会进行压缩
quality = 90 表示压缩质量90,这个质量基本人眼是看不出来啥差距的,而且很多原先10m的图能压缩一半。80以下的质量大概就不太行了。
代码
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#!/usr/bin/python3
# -*- coding: utf-8 -*-
# created by mario chen, 01.04.2021, shenzhen
# my github site: https://github.com/mario-hero
import sys
import os
from pil import image
size_cut = 4 # picture over this size should be compressed. units: mb
quality = 90 # 90 is good, this number should not be smaller than 80.
def ispic(name):
namelower = name.lower()
return namelower.endswith( "jpeg" ) or namelower.endswith( "jpg" ) or namelower.endswith( "png" )
def compressimg( file ):
#print("the size of", file, "is: ", os.path.getsize(file))
im = image. open ( file )
im.save( file , quality = quality)
def compress(folder):
try :
if os.path.isdir(folder):
print (folder)
file_list = os.listdir(folder)
for file in file_list:
if os.path.isdir(folder + "/" + file ):
#print(folder +"/"+ file)
compress(folder + "/" + file )
else :
if ispic( file ):
if os.path.getsize(folder + "/" + file ) > (size_cut * 1024 * 1024 ):
compressimg(folder + "/" + file )
print ( file )
else :
if ispic(folder):
if os.path.getsize(folder) > (size_cut * 1024 * 1024 ):
compressimg(folder)
except baseexception:
return
if __name__ = = '__main__' :
for folder in sys.argv:
#print(folder)
compress(folder)
print ( "finish." )
#os.system("pause")
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实现效果
压缩后大小
另外一种图片压缩实现方式
同样自动遍历目录下的图片
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import os
from pil import image
import threading,time
def imgtoprogressive(path):
if not path.split( '.' )[ - 1 :][ 0 ] in [ 'png' , 'jpg' , 'jpeg' ]: #if path isn't a image file,return
return
if os.path.isdir(path):
return
##########transform img to progressive
img = image. open (path)
destination = path.split( '.' )[: - 1 ][ 0 ] + '_destination.' + path.split( '.' )[ - 1 :][ 0 ]
try :
print (path.split( '\\')[-1:][0],' 开始转换图片')
img.save(destination, "jpeg" , quality = 80 , optimize = true, progressive = true) #转换就是直接另存为
print (path.split( '\\')[-1:][0],' 转换完毕')
except ioerror:
pil.imagefile.maxblock = img.size[ 0 ] * img.size[ 1 ]
img.save(destination, "jpeg" , quality = 80 , optimize = true, progressive = true)
print (path.split( '\\')[-1:][0],' 转换完毕')
print ( '开始重命名文件' )
os.remove(path)
os.rename(destination,path)
for d,_,fl in os.walk(os.getcwd()): #遍历目录下所有文件
for f in fl:
try :
imgtoprogressive(d + '\\' + f)
except :
pass
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以上就是python 批量压缩图片的脚本的详细内容,更多关于python 批量压缩图片的资料请关注服务器之家其它相关文章!
原文链接:https://github.com/Mario-Hero/PicCompress