gistfile1.py

def smart_difference(pic1, pic2):
    '''Take two pictures and tests how similar they are. Excuse the terrible docstrings. They need some work
    '''

    h1 = get_height(pic1)
    h2 = get_height(pic2)
    w1 = get_width(pic1)
    w2 = get_width(pic2)
    
   if (h1 > h2):
       pic1 = reduce_height(pic1, h1/h2)
   elif (h2 > h1):
       pic2 = reduce_height(pic2, h2/h1)

   if (w1 > w2):
       pic1 = reduce_width(pic1, h1/h2)
   elif (w2 > w1):
       pic2 = reduce_width(pic2, h2/h1)

   pic2 = adjust_colours(pic2, pic1)
   
   return simple_difference(pic1, pic2)

def adjust_colours(target_pic, reference_pic):
    '''Takes target pic and adjusts it's average RGB values to reference pic's RGB values...
    '''

    target_red_avg = red_average(target_picture)
    reference_red_avg = red_average(reference_picture)

    target_blue_avg = blue_average(target_picture)
    reference_blue_avg = blue_average(reference_picture)

    target_green_avg = green_average(target_picture)
    reference_green_avg = green_average(reference_picture)

# get the difference between avg for r, g, b
# adjust target's red by r, g, b for all pixels
# do the same for blue, green
# get the difference between avg for red, g, b



def red_average(picture):
    sum = 0
    
    for every p picture:
        sum = get_red(pixel) + sum
    
    return sum / (h * w)