Saturday, November 16, 2024
Google search engine
HomeLanguagesWand function() function in Python

Wand function() function in Python

function() function is similar to evaluate function. In function() function pixel channels can be manipulated by applies a multi-argument function to pixel channels. 
Following are the list of FUNCTION_TYPES in Wand: 
 

  • ‘undefined’
  • ‘arcsin’
  • ‘arctan’
  • ‘polynomial’
  • ‘sinusoid’

 

Syntax : 
 

wand.image.function(function, arguments, channel)

Parameters : 
 

Parameter Input Type Description
function collections.abc.Sequence a sequence of doubles to apply against function
arguments numbers.Real Number to calculate with operator 
 
channel basestring Optional channel to apply operation on. 
 

Example 1:
Source Image: 
 

 

Python3




# Import Image from wand.image module
from wand.image import Image
 
frequency = 3
phase_shift = -90
amplitude = 0.2
bias = 0.7
 
# Read image using Image function
with Image(filename ="koala.jpeg") as img:
    # applying sinusoid FUNCTION_TYPE
    img.function('sinusoid', [frequency, phase_shift, amplitude, bias])
    img.save(filename ="kl-functioned.jpeg")


Output : 
 

Example 2:
Source Image: 
 

 

Python3




# Import Image from wand.image module
from wand.image import Image
 
frequency = 3
phase_shift = -90
amplitude = 0.2
bias = 0.7
 
# Read image using Image function
with Image(filename ="road.jpeg") as img:
    # applying sinusoid FUNCTION_TYPE
    img.function('polynomial', [frequency, phase_shift, amplitude, bias])
    img.save(filename ="rd-functioned.jpeg")


Output : 
 

 

Dominic Rubhabha-Wardslaus
Dominic Rubhabha-Wardslaushttp://wardslaus.com
infosec,malicious & dos attacks generator, boot rom exploit philanthropist , wild hacker , game developer,
RELATED ARTICLES

Most Popular

Recent Comments