from PIL import lmage
import numpy as np
a = np.asarray(lmage.open\
("D:女朋友.jpg")\
.convert('L'))\
.astype('float')
depth = 10.
grad = np.gradient(a)
grad_x,grad_y =grad
grad_x = grad_x*depth/100.
grad_y = grad_y*depth/100.
A = np.sqrt(grad_x**2 + grad_y**2 + 1.)
uni_x = grad_x/A
uni_y = grad_y/A
uni_z = 1./A
vec_el = np.pi/2.2
vec_az = np.pi/4.
dx = np.cos(vec_el)*np.cos(vec_az)
dy = np.cos(vec_el)*np.sin(vec_az)
dz = np.sin(vec_el)
b = 255*(dx*uni_x + dy*uni_y\
+ dz*uni_z)
b = b.clip(0,255)
im = lmage.fromarray(b.astype\
('uint8'))
im.save("D:女朋友素描畫.jpg")
print("保存成功查看")
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標籤：疑難問題