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Wand sample() function – Python

  • Last Updated : 13 Jul, 2021
Geek Week

The sample() function is an inbuilt function in the Python Wand ImageMagick library which is used to change the image size by sampling the pixels. It’s quicker than resize() but less quality of image is provided.


sample(width, height)

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

  • width: This parameter stores the width of the sample image.
  • height: This parameter stores the height of the sample image.

Return Value: This function returns the Wand ImageMagick object.

Original Image: 

Example 1: 


# 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 sample:
        # Invoke sample function with threshold as 0.8
        sample.sample(200, 100)
        # Save the image ='sample1.jpg')


Example 2: 


# 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 circle 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, 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
        # Invoke sample function method with threshold 0.6
        pic.sample(50, 100)
        # Save the image ='sample2.jpg')



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