Elias Gamma Encoding in Python

Steps in Encoding:

Find the largest N, with (greater power of 2).
Encode N using Unary coding(i.e N zeroes followed by a one).
Append the integer using N digits in Binary.

Example:

Step1

Step2

Step3

10 = 0001010

# Python3 implementation 
from math import log 
  
log2 = lambda x: log(x, 2) 
  
def Unary(x): 
    return (x-1)*'0'+'1'
  
def Binary(x, l = 1): 
    s = '{0:0%db}' % l 
    return s.format(x) 
      
def Elias_Gamma(x): 
    if(x == 0):  
        return '0'
  
    n = 1 + int(log2(x)) 
    b = x - 2**(int(log2(x))) 
  
    l = int(log2(x)) 
  
    return Unary(n) + Binary(b, l) 
      
print(Elias_Gamma(10)) 

Output:

Tags:

#python-utility #Python #python

Elias Delta Encoding in Python

Elias Gamma Encoding in Python

Steps in Encoding:

Contact Us