import Imageim=Image.open('im.jpg')box=(100,100,400,400)part=im.crop(box)part=part.point(lambda i: i*2)im.paste(part, box)im.save('save.jpg')im.show()

import Imageimport ImageChopsim1=Image.open('color.bmp')im1=im1.resize((500,500))im2=Image.open('im.jpg')out=ImageChops.lighter(im1,im2)out.show()

import Imageimport ImageChopsim1=Image.open('color.bmp')im2=Image.open('im.jpg')im1=im1.resize((500,500))out=ImageChops.darker(im1,im2)out.show()