# coding: utf-8
from PIL import Image


def pic_detect(search_file, template_file, step=5):
    img_0 = Image.open(search_file)
    img_1 = Image.open(template_file)
    img_mem_0 = img_0.load()
    img_mem_1 = img_1.load()
    rgb0 = [0, 0, 0]
    rgb1 = img_1.getpixel((1, 1))
    size_pic = img_0.size
    size_pic_tpl = img_1.size

    for y in range(size_pic[1] - size_pic_tpl[1]):
        for x in range(size_pic[0] - size_pic_tpl[0]):
            rgb0 = img_mem_0[x, y]
            br = False
            if rgb0 == rgb1:
                for i in range(0, size_pic_tpl[1] - 1, int(size_pic_tpl[1] / step)):
                    for e in range(0, size_pic_tpl[0] - 1, int(size_pic_tpl[0] / step)):
                        if img_mem_0[x + e, y + i] == img_mem_1[e + 1, i + 1]:
                            pass
                        else:
                            br = True
                            break
                    if br:
                        break
                if br == False:
                    # Попиксельная сверка для 100% совпадения, в большинстве случаев это излишне
                    # for ii in range(size_pic_tpl[1]-1):
                    # for ee in range(size_pic_tpl[0]-1):
                    # if img_mem_0[x+ee,y+ii] == img_mem_1[ee+1,ii+1]:
                    return (x, y)


print (pic_detect('note_full.png', 'note_part.png'))