def split_image_bs4(file, max_len=720):
"""
切割图片
:param file: 二进制文件
:param max_len: 最大长度
:return: bs64
"""
# f = base64.b64decode(b64)
# with io.BytesIO(f) as im:
im = io.BytesIO(file)
img = Image.open(im)
w, h = img.size
# print(w, h)
v = max(w, h)
if v > max_len:
if v == w:
final_w = max_len
final_h = h * (max_len/w)
else:
final_w = w * (max_len / h)
final_h = max_len
# print(final_w)
final_img = img.resize((int(final_w), int(final_h)), Image.ANTIALIAS)
# print(type(final_img))
img_byte = io.BytesIO()
final_img.save(img_byte, 'png')
b64 = base64.b64encode(img_byte.getvalue())
return b64
else:
return base64.b64encode(file)
python对图片进行最大边大小缩放的相关教程结束。
