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。
from PIL import Imagefrom 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()
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#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()