ffmpeg + ImageMagick + python stuffs

README.md

So here's what I did. I don't know if it's anywhere NEAR what you're getting at, but I think it's neato. Thanks for the source images :)

I created a bunch of interstitial 50% blended frames, and at higher rates (like 24fps) I see a difference!

Here's what I did:

1. dumped all the images to a dir
2. wrote a python script (attached)
3. created an /output dir
4. ran the python script, which copies source images + generates blended images using ImageMagick CLI junk
5. ran ffmpeg within the /output dir
6. video! --> https://dl.dropboxusercontent.com/u/126879/glob_test.mkv

My ffmpeg command: ffmpeg -f image2 -framerate 16 -pattern_type glob -i "*.jpg" glob_test.mkv

generate_blended_images.py

"""
	This is a little script to help smooth out ffmpeg time lapse input.

	It grabs a bunch of files, copies them, and generates blended 
	versions of each frame at 50%/50% using imagemagick composite operations.
""" 

from os import listdir
from os.path import isfile, join
import subprocess

imgPath = './' 			# this is the dir that contains source images
outputPath = './output' # this is the dir we're dumping copies + blended images into

imgFiles = [ f for f in listdir(imgPath) if isfile(join(imgPath,f)) and f[-3:] == 'jpg' ]


def copyImageToOutput(srcImg):
	subprocess.call("cp %s %s/" % (srcImg, outputPath), shell=True)

iterImgs = iter(imgFiles)
for currentImg in iterImgs:
	try:
		# if the iterator will let us, grab the next file (and advance the iterator pointer)
		nextImg = next(iterImgs)
		copyImageToOutput(nextImg)
		# use imagemagick to composite the two images and dump the result into the output dir
		subprocess.call("composite -dissolve 50 -gravity South %s %s %s/%s_blended.jpg" % (currentImg, nextImg, outputPath, currentImg), shell=True)
	except StopIteration, e:
		# the iterator tried to get the 'next' image WHEN THERE WAS NO SUCH IMAGE
		# lol
		print 'hit the last image..'
		pass

	# dump the current image to the output dir
	copyImageToOutput(currentImg)