解释

Python 里对图片进行缩放可以使用 PIL.Image.resize 方法。

例子

对最大尺寸大于 1024 的图片进行缩放

from PIL import Image
import shutildef main():input_path = 'xxx'output_path = 'xxx'fix_size = 1024img = Image.open(input_path)width = img.widthheight = img.heightif width > height:if width > fix_size:img = Image.open(input_path)new_width = fix_sizenew_height = int(new_width * height / width)out = img.resize((new_width, new_height), Image.ANTIALIAS)out.save(output_path)else:shutil.copy(input_path, output_path)else:if height > fix_size:img = Image.open(input_path)new_height = fix_sizenew_width = int(new_height * width / height)out = img.resize((new_width, new_height), Image.ANTIALIAS)out.save(output_path)else:shutil.copy(input_path, output_path)if __name__ == '__main__':main()