Two Dimensional RLE

A two dimensional RLE (run length encoding) implementation for one dimensional input data, e.g. Strings.

Build

• Clone Project
• build Project and all dependencies with maven mvn clean install
• if dependencies still missing (jcenter bug), run the dep.sh skript and try again
• alternatively you can just run the build.sh script
• to build jar run mvn package -DskipTests
• run Test with maven surefire plugin mvn surefire-report:report to execute all Test cases and get the results shown as a report in html.

Usage

• build or download latest release
• run with JVM of your preference, but it performs better with the GraalVM instead of some Oracle or Open JVM
• further usage visible when run with -h or --help

Usage:
 [action] [method] [preprocessing] -f [files...]

ACTION:
-c 		          compress file (default)
-d 		          decompress file

METHOD:
-v #,#,#,#,#,#,#,#	 vertical reading (default), optional run lengths used on bit of significance 1 to 8 (N in range [2,32])
-bin #N 		 binary reading (with N bits per RLE encoded number, default 3)
-byte #N 		 byte wise reading (with N bits per RLE encoded number, default 3)

PREPROCESSING:
-bwt                     apply Burrows-Wheeler-Transformation during encoding
-map                     apply Byte-mapping during encoding
-huf                     encode with Huffman encoding

DEBUG:
-D                       debug log level

Thesis

The latest version of the thesis is found here