目錄簡(jiǎn)介需要 Needs用法 Usage代碼實(shí)現(xiàn)效果另外一種圖片壓縮實(shí)現(xiàn)方式簡(jiǎn)介

用Python批量壓縮圖片，把文件夾或圖片直接拖入即可

需要 Needs

Python 3

Pillow (用pip install pillow來(lái)安裝即可)

用法 Usage

把文件夾或圖片直接拖入即可。如果拖入的是文件夾，則會(huì)遍歷子文件夾把所有圖片都?jí)嚎s了。

注意，壓縮后的文件會(huì)直接替換原來(lái)的文件，文件名不變，尺寸不變，只改變壓縮質(zhì)量。

文件的開(kāi)頭有兩個(gè)變量：

SIZE_CUT = 4 表示大于4MB的圖片都會(huì)進(jìn)行壓縮

QUALITY = 90 表示壓縮質(zhì)量90，這個(gè)質(zhì)量基本人眼是看不出來(lái)啥差距的，而且很多原先10M的圖能壓縮一半。80以下的質(zhì)量大概就不太行了。

代碼

#!/usr/bin/python3# -*- coding: UTF-8 -*-# Created by Mario Chen, 01.04.2021, Shenzhen# My Github site: https://github.com/Mario-Heroimport sysimport osfrom PIL import ImageSIZE_CUT = 4 # picture over this size should be compressed. Units: MBQUALITY = 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:returnif __name__ == ’__main__’: for folder in sys.argv:#print(folder)compress(folder) print('Finish.') #os.system('pause')實(shí)現(xiàn)效果

壓縮后大小

另外一種圖片壓縮實(shí)現(xiàn)方式

同樣自動(dòng)遍歷目錄下的圖片

import osfrom PIL import Imageimport threading,timedef imgToProgressive(path): if not path.split(’.’)[-1:][0] in [’png’,’jpg’,’jpeg’]: #if path isn’t a image file,returnreturn 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],’開(kāi)始轉(zhuǎn)換圖片’)img.save(destination, 'JPEG', quality=80, optimize=True, progressive=True) #轉(zhuǎn)換就是直接另存為print(path.split(’’)[-1:][0],’轉(zhuǎn)換完畢’) 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],’轉(zhuǎn)換完畢’) print(’開(kāi)始重命名文件’) os.remove(path) os.rename(destination,path)for d,_,fl in os.walk(os.getcwd()): #遍歷目錄下所有文件 for f in fl:try: imgToProgressive(d+’’+f)except: pass

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