python?實現(xiàn)圖片特效處理

更新時間：2022年04月02日 14:38:42 作者：autofelix

這篇文章主要介紹了python?實現(xiàn)圖片特效處理，對于??圖片處理?，在日常生活中我們常常能夠看到的，下面我們就來利用Python來對圖片進(jìn)行特效操作,需要的朋友可以參考一下

一、黑白特效

將圖片處理后，變?yōu)楹诎最伾?/li>
把像素的R，G，B三個通道數(shù)值都置為：??r*0.299+g*0.587+b*0.114??
效果

黑白特效：

python 特效之圖片處理_圖片轉(zhuǎn)換_02

代碼：

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

import numpy as np
from PIL import Image

class picture:
'''
This is a main Class, the file contains all documents.
One document contains paragraphs that have several sentences
It loads the original file and converts the original file to new content
Then the new content will be saved by this class
'''
def __init__(self):
self.path = 'assets/picture.jpeg'

def hello(self):
'''
This is a welcome speech
:return: self
'''
print('*' * 50)
print(' ' * 20 + '圖片轉(zhuǎn)換特效之黑白')
print(' ' * 5 + '作者: autofelix Date: 2022-01-17 13:14')
print('*' * 50)
return self

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

def to_black_white(self):
'''
Picture to black white
'''
im = np.asarray(Image.open(self.path).convert('RGB'))
trans = np.array([[0.299, 0.587, 0.114], [0.299, 0.587, 0.114], [0.299, 0.587, 0.114]]).transpose()
im = np.dot(im, trans)
return Image.fromarray(np.array(im).astype('uint8'))

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

二、流年特效

將圖片處理后，變?yōu)榱髂晏匦?/li>
把R通道的數(shù)值開平方，然后乘以一個參數(shù)
效果

流年特效：

python 特效之圖片處理_python特效_03

代碼：

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

import numpy as np
from PIL import Image

class picture:
'''
This is a main Class, the file contains all documents.
One document contains paragraphs that have several sentences
It loads the original file and converts the original file to new content
Then the new content will be saved by this class
'''
def __init__(self):
self.path = 'assets/picture.jpeg'

def hello(self):
'''
This is a welcome speech
:return: self
'''
print('*' * 50)
print(' ' * 20 + '圖片轉(zhuǎn)換特效之流年')
print(' ' * 5 + '作者: autofelix Date: 2022-01-17 13:14')
print('*' * 50)
return self

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

def fleeting(self, params=12):
'''
Picture to fleeting
'''
im = np.asarray(Image.open(self.path).convert('RGB'))
im1 = np.sqrt(im * [1.0, 0.0, 0.0]) * params
im2 = im * [0.0, 1.0, 1.0]
im = im1 + im2
return Image.fromarray(np.array(im).astype('uint8'))

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

三、舊電影特效

將圖片處理后，變?yōu)榕f電影特效
把像素的R，G，B三個通道數(shù)值，3個通道的分別乘以3個參數(shù)后求和，最后把超過255的值置為255
效果

舊電影特效：

python 特效之圖片處理_圖片轉(zhuǎn)換_04

代碼：

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

import numpy as np
from PIL import Image

class picture:
'''
This is a main Class, the file contains all documents.
One document contains paragraphs that have several sentences
It loads the original file and converts the original file to new content
Then the new content will be saved by this class
'''
def __init__(self):
self.path = 'assets/picture.jpeg'

def hello(self):
'''
This is a welcome speech
:return: self
'''
print('*' * 50)
print(' ' * 20 + '圖片轉(zhuǎn)換特效之舊電影')
print(' ' * 5 + '作者: autofelix Date: 2022-01-17 13:14')
print('*' * 50)
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()

四、反色特效

將圖片處理后，變?yōu)榉瓷匦?/li>
這個最簡單了，用255減去每個通道的原來的數(shù)值
效果

反色特效：

python 特效之圖片處理_python_05

代碼：

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

import numpy as np
from PIL import Image

class picture:
'''
This is a main Class, the file contains all documents.
One document contains paragraphs that have several sentences
It loads the original file and converts the original file to new content
Then the new content will be saved by this class
'''
def __init__(self):
self.path = 'assets/picture.jpeg'

def hello(self):
'''
This is a welcome speech
:return: self
'''
print('*' * 50)
print(' ' * 20 + '圖片轉(zhuǎn)換特效之反色')
print(' ' * 5 + '作者: autofelix Date: 2022-01-17 13:14')
print('*' * 50)
return self

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

def reverse(self):
'''
Picture to reverse
'''
im = 255 - np.asarray(Image.open(self.path).convert('RGB'))
return Image.fromarray(np.array(im).astype('uint8'))

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

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