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Pgmagick sharpen() method – Python

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  • Last Updated : 04 Oct, 2021
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The sharpen() function is an inbuilt function in the Pgmagick library that is used to sharpen the image. It uses a Gaussian operator of the given radius and standard deviation (sigma). 

Syntax: 

sharpen( radius, sd )

Parameters: This function accept two parameters as mentioned above and described below:  

  • radius: This parameter stores the radius value of the sharpness.
  • sd: It is an optional parameter which stores the standard deviation of the image.

Return Value: This function returns the Pgmagick object with image added. 
 

Input Image:  

Example 1:  

Python3




from pgmagick import Image, DrawableCircle, DrawableText
from pgmagick import Geometry, Color
 
# draw the image of dimension 600 * 600
 
img = Image('input.png')
# invoke sharpen function with radius 10 and standard deviation as 5
img.sharpen(10, 13)
 
# invoke write function along with filename
img.write('2_a.png')

Output: 

Example 2:  

Python3




# import library
from pgmagick import Image, DrawableCircle, DrawableText
from pgmagick import Geometry, Color
 
# Draw image of dimension 600 * 600 having background green
im = Image(Geometry(600, 600), Color("# 32CD32"))
 
# invoke DrawableCircle() function
circle = DrawableCircle(100, 100, 300, 20)
 
# invoke draw() function
im.draw(circle)
 
# set font size to 40px
im.fontPointsize(40)
 
# invoke DrawableText() function
text = DrawableText(250, 450, "GeeksForGeeks")
 
# invoke draw() function
im.draw(text)
 
# invoke sharpen function with radius as 9
im.sharpen(9)
 
# invoke write function along with filename
im.write('1_b.png')

Output: 

 


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