import PIL.image

def save_image(arr, fp, format='JPEG'):
    image = PIL.Image.fromarray(arr)
    image.save(fp, format=format, quality=90)

def save_images(ims, path_prefix='', format='JPEG'):
    for i, im in enumerate(ims):
        path = str(path_prefix)+str(i).zfill(4)+'.'+str(format).lower()
        save_image(im, path)