添加图片半透明蒙版

create_image_mask.py

#========================================
#    author: Changlong.Zang
#      mail: [email protected]
#      time: Tue Apr 14 22:22:51 2020
#========================================
from PIL import Image, ImageDraw
#--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
def main():
    '''
    '''
    with Image.open('C:/Users/zangchanglong/Desktop/the_lion_king-002.jpg') as img:

        img = img.convert('RGBA')

        mask = Image.new('RGBA', (img.width, img.height))
        draw = ImageDraw.Draw(mask)
        draw.rectangle(((0, 0), (240, img.height)), fill=(0, 0, 0, 128))
        draw.rectangle(((img.width - 240, 0), (img.width, img.height)), fill=(0, 0, 0, 128))

        img.alpha_composite(mask)

        img = img.convert('RGB')
        img.save('C:/Users/zangchanglong/Desktop/the_lion_king-003.jpg', 'jpeg')


if __name__ == '__main__':
    main()