Python图片有损压缩
# run this in any directory
# add -v for verbose
# get Pillow (fork of PIL) from
# pip before running -->
# pip install Pillow
# import required libraries
import os
import sys
from PIL import Image
# define a function for
# compressing an image
def compressMe(file, verbose = False):
# Get the path of the file
filepath = os.path.join(os.getcwd(),
file)
# open the image
picture = Image.open(filepath)
# Save the picture with desired quality
# To change the quality of image,
# set the quality variable at
# your desired level, The more
# the value of quality variable
# and lesser the compression
picture.save("Compressed_"+file,
"JPEG",
optimize = True,
quality = 10)
return
# Define a main function
def main():
verbose = False
# checks for verbose flag
if (len(sys.argv)>1):
if (sys.argv.lower()=="-v"):
verbose = True
# finds current working dir
cwd = os.getcwd()
formats = ('.jpg', '.jpeg')
# looping through all the files
# in a current directory
for file in os.listdir(cwd):
# If the file format is JPG or JPEG
if os.path.splitext(file).lower() in formats:
print('compressing', file)
compressMe(file, verbose)
print("Done")
# Driver code
if __name__ == "__main__":
main()
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