Python – motion_blur() in Wand

Another kind of blur we can perform in Wand is Motion Blur. In this kind a Gaussian blur is performed in a single linear direction and it appears like image is moving in a linear direction. It takes a new angle parameter.

Syntax :

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)

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.

Image Used : 

Example 1:

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 motion blur effect using motion_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)

Output :

Example 2: increase radius, sigma and changed angle to 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 motion blur effect using motion_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)

Output :