python照片滤镜算法 日晒黄旧图片

[python]代码库

#!/usr/bin/env python
# encoding: utf-8

import numpy as np
from PIL import Image


class picture:

    def __init__(self):
        self.path = 'assets/picture.jpeg'

    def hello(self):
        '''
        This is a welcome speech
        :return: self
        '''
 
        return self

    def run(self):
        '''
        The program entry
        '''
        im = self.old_film()
        im.show()
        im.save('assets/old_film.jpeg')

    def old_film(self):
        '''
        Picture to old film
        '''
        im = np.asarray(Image.open(self.path).convert('RGB'))
        trans = np.array([[0.393, 0.769, 0.189], [0.349, 0.686, 0.168], [0.272, 0.534, 0.131]]).transpose()
        im = np.dot(im, trans).clip(max=255)
        return Image.fromarray(np.array(im).astype('uint8'))


if __name__ == '__main__':
    picture().hello().run()

[代码运行效果截图]