比如可以这样：https://blog.csdn.net/qiek/article/details/51045813

试试这个？ img_file: 原图， pred_file: 

def save_blend_Image(img_file,pred_file):
    image1 = Image.open(img_file)
    image2 = Image.open(pred_file)
    image1 = image1.convert('RGBA')
    image2 = image2.convert('RGBA')

    image = Image.blend(image1,image2,0.5)
    output_file = pred_file[0:-4] + "_blend.png"
    image.save(output_file)

from PIL import Image