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，可以实现图像的亮度、对比度、色度和锐度四种方式的增强（或减弱）处理。
具体见下面的例子：
# -*- coding: UTF-8 -*- import os from PIL import Image from PIL import ImageEnhance # 原始图像 def ImageAugument(): path = r'E:/PycharmProjects/image_cluster-master/data/smoke_call/train/1' # 文件夹目录 files = os.listdir(path) # 得到文件夹下的所有文件名称 # 遍历文件夹 prefix = path + '/' for file in files: # print(file) image = Image.open(prefix + file) # image.show() # 亮度增强 enh_bri = ImageEnhance.Brightness(image) brightness = 1.5 image_brightened = enh_bri.enhance(brightness) image_brightened.save(prefix + file.strip('.jpg') + '-lightup' + '.jpg') # 色度增强 enh_col = ImageEnhance.Color(image) color = 1.5 image_colored = enh_col.enhance(color) image_colored.save(prefix + file.strip('.jpg') + '-colorup' + '.jpg') # 对比度增强 enh_con = ImageEnhance.Contrast(image) contrast = 1.5 image_contrasted = enh_con.enhance(contrast) image_contrasted.save(prefix + file.strip('.jpg') + '-contrastup' + '.jpg') # 锐度增强 enh_sha = ImageEnhance.Sharpness(image) sharpness = 3.0 image_sharped = enh_sha.enhance(sharpness) image_sharped.save(prefix + file.strip('.jpg') + '-moreSharp' + '.jpg') if __name__ == '__main__': ImageAugument() 效果如下：
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