PIL图像增强

#-*- coding: UTF-8 -*-     
  
from PIL import Image  
from PIL import ImageEnhance  
  
#原始图像  
image = Image.open('lena.jpg')  
image.show()  
  
#亮度增强  
enh_bri = ImageEnhance.Brightness(image)  
brightness = 1.5  
image_brightened = enh_bri.enhance(brightness)  
image_brightened.show()  
  
#色度增强  
enh_col = ImageEnhance.Color(image)  
color = 1.5  
image_colored = enh_col.enhance(color)  
image_colored.show()  
  
#对比度增强  
enh_con = ImageEnhance.Contrast(image)  
contrast = 1.5  
image_contrasted = enh_con.enhance(contrast)  
image_contrasted.show()  
  
#锐度增强  
enh_sha = ImageEnhance.Sharpness(image)  
sharpness = 3.0  
image_sharped = enh_sha.enhance(sharpness)  
image_sharped.show()