Skip to content
Related Articles

Related Articles

Improve Article

Wand sparse_color() function – Python

  • Last Updated : 13 Jul, 2021

The sparse_color() function is an inbuilt function in the Python Wand ImageMagick library which is used to interpolates color values between points on an image.


sparse_color(method, colors)

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

  • method: This parameter stores the method for interpolation. Some of the available methods are ‘barycentric’, ‘bilinear’, ‘shepards’, ‘voronoi’, ‘inverse’, ‘manhattan’.
  • color: This parameter stores the color along with points having x, y co-ordinates.

Return Value: This function returns the Wand ImageMagick object.

Original Image: 

Example 1: 


# Import library from Image
from wand.image import Image
from wand.color import Color
colors = {
Color('RED'): (100, 150),
Color('YELLOW'): (250, 150),
Color('ORANGE'): (300, 123)
# Import the image
with Image(filename ='../geeksforgeeks.png') as image:
    # Clone the image in order to process
    with image.clone() as sparse_color:
        # Invoke sparse_color function with 'bilinear' method
        sparse_color.sparse_color('bilinear', colors)
        # Save the image ='sparse_color1.jpg')


Example 2: 


# Import libraries from the wand 
from wand.image import Image
from wand.drawing import Drawing
from wand.color import Color
colors = {
Color('GREEN'): (100, 100),
Color('BLUE'): (50, 50),
Color('RED'): (200, 303)
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 sparse_color function method as barycentric
        pic.sparse_color('barycentric', colors)
        # Save the image ='sparse_color2.jpg')



 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. And to begin with your Machine Learning Journey, join the Machine Learning – Basic Level Course

My Personal Notes arrow_drop_up
Recommended Articles
Page :