使用PIL和NumPy将图像转换为Lab数组,修改值然后转换回来

from PIL import Image
import numpy as np

image = Image.open('image.jpg')
lab_image = image.convert('LAB')
l, a, b = lab_image.split()
lab_array = np.array(l)

# 修改L通道的值
lab_array = np.add(lab_array, 50)

# 修改a和b通道的值
a_array = np.array(a)
b_array = np.array(b)
a_array = np.add(a_array, 10)
b_array = np.add(b_array, 10)

modified_l = Image.fromarray(lab_array)
modified_a = Image.fromarray(a_array)
modified_b = Image.fromarray(b_array)

modified_lab_image = Image.merge('LAB', (modified_l, modified_a, modified_b))
modified_image = modified_lab_image.convert('RGB')
modified_image.show()