How can i compress the text file using huffman encoding?

2 次查看（过去 30 天）

Sanjeeb Behera 2016-9-27

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/304773-how-can-i-compress-the-text-file-using-huffman-encoding

评论： Walter Roberson 2020-8-29

I am using a text file to hide inside an image file in lsb plane. But i want to compress the text file using huffman encoding and hide inside the lsb plane of image file. After retrieve the text file, the text file should be decompressed using huffman encoding.

Can you help in this matter.

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Prakruthi gowda 2018-2-3

Hi I took steganography as my project using lsb and lsb+huffman coding can anyone help me with correct matlab codes for encoding and decoding and mail me @prakruthi.1110@gmail.com

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Massimo Zanetti 2016-9-27

4
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/304773-how-can-i-compress-the-text-file-using-huffman-encoding#answer_236375

Refer to this help page.

http://it.mathworks.com/help/comm/ref/huffmanenco.html

2 个评论
显示无隐藏无

Sanjeeb Behera 2016-9-27

Thank u for ur immediate reply

Thanks a lot

Massimo Zanetti 2016-9-27

If it helped you, please accept this answer.

请先登录，再进行评论。

更多回答（3 个）

Walter Roberson 2016-9-27

2
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/304773-how-can-i-compress-the-text-file-using-huffman-encoding#answer_236378

编辑：Walter Roberson 2016-9-27

https://www.mathworks.com/matlabcentral/fileexchange/4900-huffman-code

9 个评论
显示 7更早的评论隐藏 7更早的评论

Walter Roberson 2016-9-29

The output of the execution of what is not clear? Please clarify what you mean by not clear.

Sanjeeb Behera 2016-10-3

编辑：Walter Roberson 2016-10-3

Here i have given execution code of above program

At first it require to read the file i.e paper4

Then it needs to enter the destination huffman code file name: paper5

Enter huffman table: table

Enter the destination file: paperx

paper5, table and paperx file created but no data is saved in this file.

So can u help me, how can i get correct result?

请先登录，再进行评论。

Usairum Mirza 2019-10-16

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/304773-how-can-i-compress-the-text-file-using-huffman-encoding#answer_396689

编辑：Usairum Mirza 2019-10-16

A simple and easy way for encoding and decoding with a text file is give below:(We have used huffman functions in this code).

keep in mind make your text file in capital letters and with no nex line or comms or fullstop

2 个评论
显示无隐藏无

Ateeb Khawaja 2020-5-19

but in this code Encoding is not mentioned. its only decoding

Usairum Mirza 2020-6-3

编辑：Usairum Mirza 2020-7-10

By making a dictionay assigning their probabilities and using huffman commands like huffman enco this is where encoding part is. Also after running we can see the compression ratio or number of bits that are compressed just look it up.

请先登录，再进行评论。

Sai Sriram Sunkavalli 2020-8-29

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/304773-how-can-i-compress-the-text-file-using-huffman-encoding#answer_486644

Consider the given file(James C. Maxwell.docx). Compute the probabilities of alphabet and number (ratio of the number of occurrences to the total count of alphabets and numerals) and create a table with symbols and probabilities. Determine the Huffman code for the symbols and create the table of symbols and Huffman codewords. Using the above constructed table encode your name and Roll number.

James C. Maxwell.docx