https://github.com/ayonious/file-compression

📦 Zip and Unzip files using Huffman's code and LZW Algorithm
https://github.com/ayonious/file-compression

compression huffman-compression-algorithm java lzw-compression zip

Last synced: 6 months ago
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📦 Zip and Unzip files using Huffman's code and LZW Algorithm

• Host: GitHub
• URL: https://github.com/ayonious/file-compression
• Owner: ayonious
• Created: 2016-06-07T19:37:13.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2017-08-22T22:43:14.000Z (about 8 years ago)
• Last Synced: 2023-10-20T18:01:27.174Z (about 2 years ago)
• Topics: compression, huffman-compression-algorithm, java, lzw-compression, zip
• Language: Java
• Homepage:
• Size: 211 KB
• Stars: 23
• Watchers: 1
• Forks: 12
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# File Compression

A File Compression software that helps zip/Unzip files using these 2 algorihtms:

1. Huffmans Code

2. Lempel-Ziv-Wells algorithm

# About Huffmans Code

The Huffmans algo creates a 1-1 mapping for each byte of the input file 

and replaces each byte with the mapped bit sequence. For this you need 

to store a dictionary that describes each 1-1 mapping of input byte and

binary sequence.(which needs extraspace)

# About Lempel-Ziv-Wells

Unlike Huffmans code LZW dont need an extra dictionary to be saved. Also

LZW does not create a mapping to byte to bin sequence. It creates mapping

of multiple byte to binary sequence.

## Running Instruction:

```

java -jar FileCompression.jar

```

![Outlook](/git_resource/outlook.png?raw=true "File Compression GUI")

## Zip a file

file>open>click zip>the zipped file will be created on the same folder

## Unzip a file

file>open>click unzip>the unzipped file will be created on the same folder

## Testing environment:

I tested this project in:

Linux Mint, OS X El Capitan (version 10.11.6)