Rotate it right for browser displaying images.

fix_orientation.py

# coding: utf-8


def fix_orientation(img):
    orientation = img.metadata.get('exif:Orientation', 1)
    if orientation == 1:
        # do nothing
        return img
    elif orientation == 2:
        # vertical mirror
        img.flop()
    elif orientation == 3:
        img.rotate(180)
    elif orientation == 4:
        # horizontal mirror
        img.flip()
    elif orientation == 5:
        img.flip()
        img.rotate(270)
    elif orientation == 6:
        img.rotate(270)
    elif orientation == 7:
        img.flop()
        img.rotate(270)
    elif orientation == 8:
        img.rotate(90)
    return img