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Pgmagick equalize() method – Python

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  • Last Updated : 04 Oct, 2021
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The equalize() function is an inbuilt function in the Pgmagick library which is used to perform histogram equalization to the image.

Syntax: 

equalize()

Parameters: This function does not accept any parameters.
Return Value: This function returns the Pgmagick object with image added.

Input Image:  

Example 1:  

Python3




# import library
from pgmagick import Image, DrawableCircle, DrawableText
from pgmagick import  Geometry, Color
 
# draw the image of dimension 600 * 600
img = Image('input.png')
 
# invoke equalize() function
img.equalize()
 
# 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 equalize() function
im.equalize()
 
# invoke write function along with filename
im.write('1_b.png')

Output: 

 


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