26 lines
822 B
Python
26 lines
822 B
Python
import asyncio
|
|
import base64
|
|
import io
|
|
|
|
from PIL import Image
|
|
|
|
|
|
async def process_image(source_bytes: bytes, resize_px: int):
|
|
loop = asyncio.get_event_loop()
|
|
image = await loop.run_in_executor(None, Image.open, io.BytesIO(source_bytes))
|
|
width, height = image.size
|
|
|
|
if min(width, height) > resize_px:
|
|
if width < height:
|
|
new_width = resize_px
|
|
new_height = int((height / width) * new_width)
|
|
else:
|
|
new_height = resize_px
|
|
new_width = int((width / height) * new_height)
|
|
image = await loop.run_in_executor(None, image.resize, (new_width, new_height))
|
|
|
|
byte_arr = io.BytesIO()
|
|
await loop.run_in_executor(None, image.save, byte_arr, 'PNG')
|
|
image_bytes = byte_arr.getvalue()
|
|
return base64.b64encode(image_bytes).decode('utf-8')
|