Skip to content
Related Articles

Related Articles

Wand blur() function – Python
  • Last Updated : 10 May, 2020

The blur() function is an inbuilt function in the Python Wand ImageMagick library which is used to blur the image.

Syntax:

blur(radius, sigma, channel)

Parameters: This function accepts three parameters as mentioned above and defined below:

  • radius: This parameter is used to specify the value of radius which is the size of the gaussian aperture.
  • sigma: This parameter is used to specify the value of sigma which is the standard deviation of the gaussian filter.
  • channel: This parameter is used to specify the value of image channel as undefined, ‘red’, ‘gray’, ‘cyan’, ‘green’, ‘magenta’, ‘blue’, ‘yellow’, ‘alpha’, ‘opacity’, ‘black’, ‘index’, ‘composite_channels’, ‘all_channels, ‘sync_channels’, ‘default_channels’.

Return Value: This function returns the Wand ImageMagick object.

Original Image:



Example 1:

filter_none

edit
close

play_arrow

link
brightness_4
code

# Import library from Image 
from wand.image import Image
  
# Import the image
with Image(filename ='../geeksforgeeks.png') as image:
    # Clone the image in order to process
    with image.clone() as blur:
        # Invoke blur function with radius as 10, sigma as 12
        # channel as 'Green'
        blur.blur(int(10), int(12), 'Green')
        # Save the image
        blur.save(filename ='blur1.jpg')

chevron_right


Output:

Example 2:

filter_none

edit
close

play_arrow

link
brightness_4
code

# Import libraries from the wand  
from wand.image import Image
from wand.drawing import Drawing
from wand.color import Color
  
with Drawing() as draw:
    # Set Stroke color the circle to black
    draw.stroke_color = Color('black')
    # Set Width of the circlw to 2 
    draw.stroke_width = 1
    # Set the fill color to 'White (# FFFFFF)'
    draw.fill_color = Color('white')
  
    # Invoke Circle function with center at 50, 50 and radius 25
    draw.circle((200, 200), # Center point
                (100, 100)) # Perimeter point
    # Set the font style
    draw.font = '../Helvetica.ttf'
    # Set the font size 
    draw.font_size = 30
      
    with Image(width = 400, height = 400, background = Color('# 45ff33')) as pic:
        # Set the text and its location
        draw.text(int(pic.width / 3), int(pic.height / 2), 'GeeksForGeeks !')
        # Draw the picture
        draw(pic)
        # Invoke blur function with radius as 200, sigma as 5 
        # Channel as red
        pic.blur(int(200), int(5), 'Green')
        # Save the image 
        pic.save(filename ='blur2.jpg')

chevron_right


Output:

Attention geek! Strengthen your foundations with the Python Programming Foundation Course and learn the basics.

To begin with, your interview preparations Enhance your Data Structures concepts with the Python DS Course.

My Personal Notes arrow_drop_up
Recommended Articles
Page :