Wand statistic function – Python
The statistic() function is an inbuilt function in the Python Wand ImageMagick library which is used to replace each pixel with the statistic results from neighboring pixel values. The width & height defines the size, or aperture, of the neighboring pixels.
Syntax:
statistic(stat, width, height, channel)
Parameters: This function accepts four parameters as mentioned above and defined below:
- stat: This parameter stores the type of statistic to calculate. Some of the available statistics are ‘undefined’, ‘gradient’, ‘maximum’, ‘mean’, ‘median’, ‘minimum’, ‘mode’, ‘nonpeak’, ‘root_mean_square’, ‘standard_deviation’.
- width: This parameter stores the size of neighboring pixels on the X-axis.
- height: This parameter stores the size of neighboring pixels on the Y-axis.
- channel: This parameter stores the available color channel.
Return Value: This function returns the Wand ImageMagick object.
Original Image:
Example 1:
Python3
from wand.image import Image
with Image(filename = '../geeksforgeeks.png' ) as image:
with image.clone() as statistic:
statistic.statistic( 'median' , 20 , 10 , 'yellow' )
statistic.save(filename = 'statistic1.jpg' )
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Output:
Example 2:
Python3
from wand.image import Image
from wand.drawing import Drawing
from wand.color import Color
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.statistic( 'root_mean_square' , 20 , 10 , 'green' )
pic.save(filename = 'statistic2.jpg' )
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Output:
Last Updated :
02 Aug, 2021
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