Pgmagick sharpen() method - Python

Last Updated : 04 Oct, 2021

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')