【python图像处理】图像的增强（ImageEnhance类详解）

python中PIL模块中有一个叫做ImageEnhance的类，该类专门用于图像的增强处理，不仅可以增强（或减弱）图像的亮度、对比度、色度，还可以用于增强图像的锐度。

具体见下面的例子：

#-*- 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()

结果如下：

原始图像



亮度增强



色度增强



对比度增强



锐度增强



2017.05.03