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# Huffman

69 Threads found on edaboard.com: Huffman

## compression algorithm code for hex array data?

You can search on this forum using the keyword huffman, like this:

## How to write huffman coding algorithm without using huffmanenco & huffmandeco ?

Why should you write them yourself? They are already written and working. If you mean you want to be able to see the source code yourself, just type the following into Matlab: edit huffmanenco edit huffmandeco There will be some extra error-checking stuff that you probably won't really need... but you can strip do

## Encoding and Compression

What are the differences between Shannon and huffman Coding? Which one is more preferable? Please state the reasons also. Regards

## JPEG encoding with Huffman code

Hi All I just wanted to confirm my understanding of the JPEG encoding method using huffman code: 1. Matrix converted into a 1D sequency with a zigzag pattern. 2. The DC coefficient is encoded with DPCM (DC element of all blocks is relative to the 1st by difference). 3. A header is created for the DC coefficient by looking up the table fo

## which is the best entropy coding method for wavelet ac coefficients

which is the best entropy coding method for wavelet ac coefficients ?Is it huffman,arithmetic or run length encoding?

## bits/pixel of an image.

Bits per pixels mensioned as 0.25 - 2.0 means they specified average number of bits per pixels. There are variable length coding methods (like huffman code, Shanon Fano code) which can assign different number of bits for each gray level according to its probability of occurance. These specifications are normally for compressed image.Its removing co

## JPEG Compression Implementation

What kind of a comparator is it? It may be useful in the huffman Coding part. But there are other more important components like the DCT/ IDCT module, Quantizer, zig-zag scanner and finally the huffman Coder.

## what is optimal coding?

Is shannon coding always optimal? Is huffman coding always optimal? What are the difference?

## can anyone advise me about good reference to understand turbo code used in lte

Fundamentals of Error-Correcting Codes by W. Cary huffman and Vera Pless ISBN:978-0521131704

## huffman compression method

Plz help me to write vhdl program for huffman compression method to compress 16bit

## Ask Huffman from Won Y. Yang to image compression

I beginer in matlab and try huffman encoding from Won Y. Yang for image compression, with little diffrence to code_sequence, function =huffman_code(p,opt) % huffman code generator gives a huffman code matrix h, % average codeword length L & entropy H % for a source with probability vector p given as argin(1) (...)

## huffman encoder and decoder block diagram

I know the huffman coding and decoding scheme..... but am not able to understand how it can be implemented in real world.... has anyone got some idea as to how it is implemented?

## Binary Tree application code

Hi I need application's code/help which uses binary tree i.e. huffman encoding regards

## Huffman coding using VHDL.

Does anyone here have huffman coding using VHDL? I got stuck while I was writing the code and I believe that I have to start from the scratch. I don't have time and I think if you give me the code it would be really helpful. Thanks in advance.

## Huffman coding in Spartan 3E (Microblaze) - Help!!

Hello, I am a rookie in embedded systems and I am trying to implement huffman encoding using Microblaze in Spartan 3E starter kit. I use the following code in C: #include #include #include #include #include #include #include /*STRUCTURES*/ struct

## Huffman codes in vhdl

Hello I need to generate a huffman codes for symbols (bytes) based on huffman tree. but I cant find a way that I can implement by fpga. Can any one help me with an algorithm that can generate a huffman codes. Thanks

## Shannon fano coding with MATLAB,

hello friend i am sending u an attach ment please check if it is help ful This process can be done in a forward mode, which requires less memory and processing time. However, it does not always result in the same degree of compression as the huffman process. One way the code can be determined is by the following procedure: ? Arrange the messag

## matlab code for huffman code

can anybody please give the code for huffman coding in matlab....

## Huffman encoding and decoding of image compression

dear sir/madam, please give matlab program for huffman encoding and decoding of image compression

## Huffman encoding and decoding of image compression

dear sir/madam, i have matlab program for huffman encoding and decoding of image compression

## Huffman encoding in basic C

I have learned only basic programming up to now and i have to encode a sentence using huffman in my digital communication module. i have written this so far: /* To encode a sentence with special symbols except '|' using huffman code*/ #include #include int rearrange(int count1); int z=0,m=0; void main() {

## FPGA Implementation of Huffman Coding

HI, upal, visit the Home :: OpenCores , huffman coding&document is there. @ the Arithmetic Core menu, enjoy it!

## need for half man compression algorithm code :(

Dude it's not half-man, it is huffman.

## huffman encoder/Decoder For Text data compression

Hi All, I am working on huffman Encoder/Decoder for text compression/Decompression.And here are the things not clear for me. 1.How can I give text input (Whole text once) to the FPGA. 2.When I encode the data the output code length is not fixed and how can I manage this with constant I/O pins of the FPGA. 3.When Encoding the text I have to u

## binary tiff image encoding using group3 1D

hi iam doing project in binary tiff image encoding using huffman table now iam in step of reading only vaild data and fit it in big array so any body have an idea how to do this best regards

## Idea Case for huffman

Can anybody tell me what is the ideal case for huffman encoding and shan-fano and why it is always greater than the entropy of the signal.

## Does anyone have Huffman codes of english letters?

Hello, Has anyone of you made complete huffman code of all the 26 English letters depending upon the frequencies listed at this URL which is the same as listed at . If anyone has made it or has some code which ca

## Looking for Huffman text encoder in VHDL

I am searching for huffman text encoder implemented in VHDL code Does any body know any source? Thanks

## Huffman VHDL Encoder and Decoder implementation on FPGA.

Can anyone help me the procedures how to implement huffman encoder and decoder on a text file on FPGA pls? 10Q

I want carry out 'a signal processing chain' on simulink (huffman code and convolutif coding and their viterbi decoding) encoding source section(huffman) I do it on matlab and after a using block (for work space) I encode with the convolutif code the problem that out is 2 bit more than the entry i need length(out) = length(entry) to rebuild sig

## matlab code for huffman coding

hiii i have a matlab program for huffman coding but their are few errors canu please solve it

## Ways to code an FSM in VHDL/Verilog

Hi All Sometime Back i read a comprehensive paper that described about 10 Best ways to code an FSM in Verilog and VHDL for time /Area Or both. It is like 3 Process/ 4 Process/huffman style coding .. I forgot the name of the paper or the chapter or book. Anyone has similar document pls upload it . Thanks in advance Vipul

## Huffman Coder and Decoder

Hi, Can anyone please send me code for, huffman Coder and Decoder Using Structures in MATLAB Thanks

## Huffman Coder and Decoder Using Structures in MATLAB

Hi, Can anyone please send me code for, huffman Coder and Decoder Using Structures in MATLAB Thanks

## Building channel coding system in Matlab/Simulink

Hi, huffman coding is a source coding algorithm not a channel coding. BR

## Can Huffman ECC detect 2 bits error ?

Hi, Anyone know about the huffman ECC code? Can huffman ECC detect 2 bits error and how? Thanks.

adaptive huffman is adaptive huffman (also called Dynamic huffman coding) we could just re-make the huffman tree every time a symbol is sent but more effective for implementation is "arithmetic coding" as "adaptive huffman" for implementation is simply a binary tree, but binary tree

## Can shannon fano coding be more compact than huffman coding?

hi can shannon fano coding be more compact than huffman codind for a certain probability distribution thanks

## Is the coeff_token in the H.264 CAVLC codec use huffman ?

Some paper says that the coeff_token in the H.264 CAVLC codec use huffman coding algorithm.But in my understand,the huffman code should be a variable length random bit stream depending on the symbol probabilty.But the table below shows that it is consists of 0s+1+suffix;So is the coeff_token in the H.264 CAVLC codec use huffman table or (...)

## digital communication

huffman coding, shanon fano coding, viterbi's algorithm, do you want more???

## variable length coding

Hi All, can any body tell me wha are the various types of varaiable length coding exist apart from huffman coding .?

## Huffman Coding, Lempel-Ziv Coding and Arithmetic Coding ?

guyz can any1 tell me wht is the difference between huffman Coding, Lempel-Ziv Coding and Arithmetic Coding techniques

## Optimal Quantization / Adaptive Quantization for image

I am doing a project about image compression in which I decided to build an encoder and a decoder using Matlab. The encode algorithm is: Read image -> 8x8 2D-DCT -> Optimal Quantization -> huffman coding However, I have no idea about how to construct the optimal quantization. I know jpeg use a standard quantization matrix, is there other me

## Image Compression Using RLE, Huffman and LZ coding

hi everybody.... can anybody tell me.... Can i use RLE, huffman and LZ coding algorithm for image compression? Can i implement RLE, huffman and LZ coding algorithm in MATLAB? thanks in advance amit gangwar

## need help in huffman and CRC coding

hi, lf u go to my site , u will find doc about huffman decoder used in mp3 decoding. if u want I may give u rtl as well kr, avi

## huffman code for JPEG

Hi, If any one have huffman code in c or related document for JPEG code, then kindly plz forward me. Regards, NP

## help:-huffman decoding and fixed point arithmetic

Hi, I am Naail Malick doing Electronics engg from Ned University.... I need your help and i am hoping,you will help me.. My problem is that i am implementing the MP3 decoder...and i found difficulties in two blocks. 1) huffman decoding:- i have used clustered huffman table(Reza hashemian) to decode the huffman coded bits. i have (...)

## help(huffman& fixed point arithmetic)

Hi, I am Naail Malick doing Electronics engg from Ned University.... I need your help and i am hoping,you will help me.. My problem is that i am implementing the MP3 decoder...and i found difficulties in two blocks. 1) huffman decoding:- i have used clustered huffman table(Reza hashemian) to decode the huffman coded bits. i have (...)

## Long SMS message Decompression Algorithm

It obviously has to be a lossless compression like the huffman I can suggest a site that has some source code and algorithms explained. ~Kalyan

## verilog code for huffman coding

can anybody help me to write a verilog code for huffman coding