Pgmagick equalize() method – Python

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: