Wand sparse_color() function – Python
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
from wand.image import Image
from wand.color import Color
colors = {
Color( 'RED' ): ( 100 , 150 ),
Color( 'YELLOW' ): ( 250 , 150 ),
Color( 'ORANGE' ): ( 300 , 123 )
}
with Image(filename = '../geeksforgeeks.png' ) as image:
with image.clone() as sparse_color:
sparse_color.sparse_color( 'bilinear' , colors)
sparse_color.save(filename = 'sparse_color1.jpg' )
|
Output:
Example 2:
Python3
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:
draw.stroke_color = Color( 'black' )
draw.stroke_width = 1
draw.fill_color = Color( 'white' )
draw.circle(( 200 , 200 ),
( 100 , 100 ))
draw.font = '../Helvetica.ttf'
draw.font_size = 30
with Image(width = 400 , height = 400 , background = Color( '# 45ff33' )) as pic:
draw.text( int (pic.width / 3 ), int (pic.height / 2 ), 'GeeksForGeeks !' )
draw(pic)
pic.sparse_color( 'barycentric' , colors)
pic.save(filename = 'sparse_color2.jpg' )
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Output:
Last Updated :
13 Jul, 2021
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