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.
Syntax:
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:
Python3
# 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 = '../neveropen.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_color.save(filename = 'sparse_color1.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 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 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 sparse_color function method as barycentric pic.sparse_color( 'barycentric' , colors) # Save the image pic.save(filename = 'sparse_color2.jpg' ) |
Output: