问题描述

base64 的 image/tiff 无法在页面直接展示，将其转换为 image/png

解决方案

from io import BytesIOfrom PIL import Imagewith Image.open('a.tiff') as image:bytesIO = BytesIO()image.save(bytesIO, format='PNG', quality=75)img = bytesIO.getvalue()with open('a.png', 'wb') as f:  # 写入图片f.write(img)

压缩并转换

from io import BytesIOfrom PIL import Imagewith Image.open('a.tiff') as image:width, height = image.sizetarget_width = 500  # 目标宽度if width > target_width:height = round(target_width * height / width)width = target_widthsize = (width, height)image = image.resize(size)bytesIO = BytesIO()image.save(bytesIO, format='PNG', quality=75)img = bytesIO.getvalue()with open('a.png', 'wb') as f:  # 写入图片f.write(img)

参考文献

1. Image Module - Pillow Documentation
2. Python图片按比例缩放后的宽和高（PIL等比缩放）