Splits Red/Cyan Anaglyph into Left and Right Images and writes those images out into files with the same filename with '-left' or '-right' appended.

split_anaglyph_file.py

import os
from scipy import misc

def split_anaglyph_file(infile):
    """
    Splits Red/Cyan Anaglyph into Left and Right Images and writes those images
    out into files with the same filename with '-left' or '-right' appended.
    """
    image = misc.imread(infile)
    if len(image.shape) == 3:
        h, w, b = image.shape
        filename, extension = os.path.splitext(infile)
        left_outfile = filename + "-left" + extension
        right_outfile = filename + "-right" + extension
        misc.imsave(left_outfile, image[:,:,0])
        misc.imsave(right_outfile, image[:,:,1])
        print "Images written: %s, %s" % (left_outfile, right_outfile)
    else:
        print 'WARNING: Input image does not have 3 bands: %s (skipped)' % infile

The choice of using image[:,:,1] was made arbitrarily, it could have been image[:,:,2], or perhaps it depends on how the anaglyph is made. This is for grayscale anaglyphs only.