User:Jules/nickybrightness

Also corrected the sound with ffmpeg :-)
from PIL import Image
import os
 
# ***FROM VIDEO TO IMAGE***
a = "ffmpeg -i test.mp4 -r 15 -an frames/frame%04d.png -y"
print a 
os.system(a)
 
# ***SORTING IMAGES ON BRIGHTNESS (make grayscale, convert to 1x1px image, value the grayscaleness of this pixel) ***
def avg(p):
	pil_im = Image.open(p) 
  	i=pil_im.convert('L')
  	i.thumbnail((1,1))
  	g=i.getpixel((0,0))
  	return g
 
from glob import glob
   
imgs = glob("frames/frame*.png")    
imgs.sort()
 
d = []
for x in imgs:
	d.append((avg(x), x))
d.sort()
print d
 
import shutil 
 
i=0
for g, image in d: 
	newname='sorted/sorted{0:04d}.png'.format(i)
	print "copying", image, "to", newname
	shutil.copyfile(image, newname)
  	i=i+1
   
# ***FROM IMAGES TO VIDEO***
b = "ffmpeg -r 15 -i sorted/sorted%04d.png -r 30 out.mp4 -y"
print b
os.system(b)