syndilights/v2/png_merger.py

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#!/usr/bin/env python3
2015-02-22 02:00:47 +01:00
from PIL import Image
import redis
import datetime
import time
def merge(r):
if not r.exists('new'):
return None
now = datetime.datetime.now().isoformat()
r.rename('new', now)
new_imgs = r.smembers(now)
print('got new images', len(new_imgs))
r.delete(now)
if len(new_imgs) == 1:
image = Image.frombytes('RGBA', (100, 100), list(new_imgs)[0])
image.save(now + '.png', 'png')
else:
images = []
for i in new_imgs:
try:
images.append(Image.frombytes('RGBA', (100, 100), i))
except:
continue
if len(images) == 2:
img_alpha = Image.alpha_composite(*images)
images = [img_alpha]
img_alpha.save(now + '.png', 'png')
if __name__ == "__main__":
r = redis.Redis()
while True:
merge(r)
time.sleep(10)