25 lines
784 B
Python
25 lines
784 B
Python
import os
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from PIL import Image
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def compress_image(infile, outfile='', kb=80, step=10, quality=80):
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"""不改变图片尺寸压缩到指定大小
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:param infile: 压缩源文件
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:param outfile: 压缩文件保存地址
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:param kb: 压缩目标, KB
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:param step: 每次调整的压缩比率
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:param quality: 初始压缩比率
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:return: 压缩文件地址，压缩文件大小
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"""
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o_size = os.path.getsize(infile)/1024
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if o_size <= kb:
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return infile
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if outfile == '':
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outfile = infile
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while o_size > kb:
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im = Image.open(infile)
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im.save(outfile, quality=quality)
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if quality - step < 0:
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break
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quality -= step
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o_size = os.path.getsize(outfile)/1024
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return outfile, o_size |