Python – Wand 中的 motion_blur()

我们可以在 Wand 中执行的另一种模糊是Motion Blur 。在这种类型中，高斯模糊是在单个线性方向上执行的，并且看起来像图像在线性方向上移动。它需要一个新的角度参数。

Syntax : 
 

Python3

# import display() to show final image
from wand.display import display
# import Image from wand.image module
from wand.image import Image
 
# read file using Image function
with Image(filename ="koala.jpeg") as img:
 
    # perform adaptive blur effect using adaptive_blur() function
    img.motion_blur(radius = 22, sigma = 10, angle = 45)
 
    # save final image
    img.save(filename ="gb_koala.jpeg")
 
    # display final image
    display(img)

Parameter :

 

Parameter	Input Type	Description
radius	numbers.Real	the radius of the, in pixels, not counting the center pixel.
sigma	numbers.Real	the standard deviation, in pixels
angle	number.Real	Apply the effect along this angle.
channel	basestring	Optional color channel to apply blur.

使用的图像：

示例 1：

Python3

wand.image.motion_blur(radius= radius_value, sigma= sigma_value,
             angle= angle_value, channel = "optional_channel_value")
# radius should always be greater than sigma(standard deviation)

输出 ：

示例 2：增加半径、sigma 并将角度更改为 45。

Python3

# import display() to show final image
from wand.display import display
# import Image from wand.image module
from wand.image import Image
 
# read file using Image function
with Image(filename ="koala.jpeg") as img:
 
    # perform adaptive blur effect using adaptive_blur() function
    img.motion_blur(radius = 16, sigma = 8, angle = 90)
 
    # save final image
    img.save(filename ="mb_koala.jpeg")
 
    # display final image
    display(img)

输出 ：