Wand scale() function – Python

The scale() function is an inbuilt function in the Python Wand ImageMagick library which is used to change the image size by scaling each pixel value by given columns and rows.

Syntax:

scale(columns, rows)

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

• columns: This parameter stores the number of columns to scale the image horizontally. It is in pixels.
• rows: This parameter stores the number of columns to scale the image vertically. It is in pixels.

Return Value: This function returns the Wand ImageMagick object.

Original Image:

Example 1:

Python3

# 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 scale:
        # Invoke scale function with threshold as 0.8
        scale.scale(200, 100)
        # Save the image
        scale.save(filename ='scale1.jpg')

Output:

Example 2:

Python3

# 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
    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 scale function method with threshold 0.6
        pic.scale(50, 100)
        # Save the image
        pic.save(filename ='scale2.jpg')

Output: