Python影像辨識筆記(七): Pillow - Python圖片處理模組

安裝

pip install Pillow

開啟圖片

from PIL import Image
pil_im = Image.open(‘empire.jpg’)

顯示圖片尺寸

w, h = pil_im.sizeprint('Original image size: %sx%s' % (w, h))

轉換成灰階

pil_im = Image.open('empire.jpg').convert('L')

批次轉換圖片至.jpg格式

from PIL import Image
import os
for infile in filelist:
outfile = os.path.splitext(infile)[0] + ".jpg"
if infile != outfile:
try:
Image.open(infile).save(outfile)
except IOError:
print("cannot convert", infile)

創建縮圖

pil_im.thumbnail((128,128))

調整尺寸

out = pil_im.resize((128,128))

旋轉

out = pil_im.rotate(45)

模糊效果

from PIL import Image, ImageFilter
im = Image.open('test.jpg')
#使用濾鏡
im2 = im.filter(ImageFilter.BLUR)
im2.save('blur.jpg', 'jpeg')

存檔

out.save('thumbnail.jpg', 'jpeg')

Written by

Machine Learning / Deep Learning / Python / Flutter cakeresume.com/yanwei-liu

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