Text Compression

Directions

• Compressing text
1. Enter the text that is to be compressed into the Data: area.
2. Select the compression method from the drop down list.
3. Click the Compress button to apply the selected method to the text.
4. The resulting string will appear in the Result: area.
5. The compression ratio will appear in the Statistics: area.
• Decompressing a string
1. Enter the string that is to be decompressed into the Data: area.
2. Select the decompression method from the drop down list.
      *Note: Because the Huffman table is dynamic, you can only apply the Huffman method to decompress a string if you have previously compressed text using this method.
3. Click the Decompress button to apply the selected method to the string.
4. The resulting text will appear in the Result: area.
5. The decompression ratio will appear in the Statistics: area.
• Displaying details
1. Click the Details button to display the table of substitutions that was applied to accomplish the compression/decompression.
2. Displaying the detail for the Huffman Method will also display the tree used to develop the table of substitutions.
• Click the Clear button to reset for a new problem.