In [1]:

    

import numpy as np
from PIL import Image


    

In [2]:

    

src1 = np.array(Image.open('data/src/lena.jpg'))
src2 = np.array(Image.open('data/src/rocket.jpg').resize(src1.shape[1::-1], Image.BILINEAR))


    

In [3]:

    

print(src1.dtype)


    

    




uint8

In [4]:

    

dst = src1 * 0.5 + src2 * 0.5


    

In [5]:

    

print(dst.dtype)


    

    




float64

In [6]:

    

Image.fromarray(dst.astype(np.uint8)).save('data/dst/numpy_image_alpha_blend.jpg')


    

In [7]:

    

dst = src1 * 0.5 + src2 * 0.2 + (96, 128, 160)


    

In [8]:

    

print(dst.max())


    

    




311.1

In [9]:

    

dst = dst.clip(0, 255)


    

In [10]:

    

print(dst.max())


    

    




255.0

In [11]:

    

Image.fromarray(dst.astype(np.uint8)).save('data/dst/numpy_image_alpha_blend_gamma.jpg')