設置讀入、輸出文件以及縮小/放大比例
imgfile = 'E:/PycharmProjects/PracticalTableau/img/191119-8.png'
outfile = 'E:/PycharmProjects/PracticalTableau/img/191119-8_resize.png'
resize = 0.8
縮小/放大圖片文件並輸出
from PIL import Image
img = Image.open(imgfile)
w,h = img.size
w,h = round(w * resize),round(h * resize)
img = img.resize((w,h), Image.ANTIALIAS)
# img = img.resize((round(1366*resize),round(768*resize)), Image.ANTIALIAS)
img.save(outfile, optimize=True, quality=85)