LZW Encoding and Decoding: A Detailed Analysis, Slides of Data Representation and Algorithm Design

A comprehensive look at lzw encoding and decoding, including the encoding process, decoding process, and various examples. It includes multiple instances of lzw encoded and decoded words, as well as their corresponding indices and dictionaries.

Typology: Slides

2011/2012

Uploaded on 07/15/2012

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LZW Encoding
Word
_
a
b
z
0
Index
32
97
98
122
SEND
256
STOP
257
it
Word
tt
ty
y_
_b
bi
ty_
_bi
it_
_bin
258
Index
259
260
261
262
263
265
266
267
268
itt
264
Dictionary
105
Send
116
116
121
32
98
258
260
i
Input
t
t
y
_
b
t
t
y
_
262 b
i
258 t
i
_
266
b
i
110 n
257 STOP
256 SEND
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pfa
pfd
pfe
pff
pf12
pf13
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pf15
pf16
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LZW Encoding

Word _ a b z

Index … 32 … 97 98 122 SEND

257 STOP

it Word tt ty y_ b bi ty bi it _bin

Index 259 260 261 262 263 265 266 267 268 264 itt Dictionary 105 116 116 121 32 98 258 260 i t t y _ b t t y _ b 262 i t 258 i _ 266 b i n 110 STOP 257 SEND 256 docsity.com

LZW Encoding

Word _ a b z

Index … 32 … 97 98 122 SEND

257 STOP

it Word tt ty y_ b bi ty bi it _bin

Index 259 260 261 262 263 265 266 267 268 264 itt Dictionary 105 116 116 121 32 98 258 260 i t t y _ b t t y _ b 262 i t 258 i _ 266 b i n 110 STOP 257 SEND 256 docsity.com

LZW Encoding

Word _ a b z

Index … 32 … 97 98 122 SEND

257 STOP

it Word tt ty y_ b bi ty bi it _bin

Index 259 260 261 262 263 265 266 267 268 264 itt Dictionary 105 116 116 121 32 98 258 260 i t t y _ b t t y _ b 262 i t 258 i _ 266 b i n 110 STOP 257 SEND 256 tt docsity.com

LZW Encoding

Word _ a b z

Index … 32 … 97 98 122 SEND

257 STOP

it Word tt ty y_ b bi ty bi it _bin

Index 259 260 261 262 263 265 266 267 268 264 itt Dictionary 105 116 116 121 32 98 258 260 i t t y _ b t t y _ b 262 i t 258 i _ 266 b i n 110 STOP 257 SEND 256 ty docsity.com

LZW Encoding

Word _ a b z

Index … 32 … 97 98 122 SEND

257 STOP

it Word tt ty y_ b bi ty bi it _bin

Index 259 260 261 262 263 265 266 267 268 264 itt Dictionary 105 116 116 121 32 98 258 260 i t t y _ b t t y _ b 262 i t 258 i _ 266 b i n 110 STOP 257 SEND 256 _b docsity.com

LZW Encoding

Word _ a b z

Index … 32 … 97 98 122 SEND

257 STOP

it Word tt ty y_ b bi ty bi it _bin

Index 259 260 261 262 263 265 266 267 268 264 itt Dictionary 105 116 116 121 32 98 258 260 i t t y _ b t t y _ b 262 i t 258 i _ 266 b i n 110 STOP 257 SEND 256 bi docsity.com

LZW Encoding

Word _ a b z

Index … 32 … 97 98 122 SEND

257 STOP

it Word tt ty y_ b bi ty bi it _bin

Index 259 260 261 262 263 265 266 267 268 264 itt Dictionary 105 116 116 121 32 98 258 260 i t t y _ b t t y _ b 262 i t 258 i _ 266 b i n 110 STOP 257 SEND 256 ty_ docsity.com

LZW Encoding

Word _ a b z

Index … 32 … 97 98 122 SEND

257 STOP

it Word tt ty y_ b bi ty bi it _bin

Index 259 260 261 262 263 265 266 267 268 264 itt Dictionary 105 116 116 121 32 98 258 260 i t t y _ b t t y _ b 262 i t 258 i _ 266 b i n 110 STOP 257 SEND 256 _bi docsity.com

LZW Encoding

Word _ a b z

Index … 32 … 97 98 122 SEND

257 STOP

it Word tt ty y_ b bi ty bi it _bin

Index 259 260 261 262 263 265 266 267 268 264 itt Dictionary 105 116 116 121 32 98 258 260 i t t y _ b t t y _ b 262 i t 258 i _ 266 b i n 110 STOP 257 SEND 256 _bin docsity.com

LZW Encoding

Word _ a b z

Index … 32 … 97 98 122 SEND

257 STOP

it Word tt ty y_ b bi ty bi it _bin

Index 259 260 261 262 263 265 266 267 268 264 itt Dictionary 105 116 116 121 32 98 258 260 i t t y _ b t t y _ b 262 i t 258 i _ 266 b i n 110 STOP 257 SEND 256 docsity.com

105 116 116 121 32 98 258 260 i t t y _ b t t y _ b 262 i t 258 i _ 266 b i n 110 STOP 257 SEND 256

LZW Encoding

Words Original Message 18 Compression Achieved Bits / word 8 Total 144 LZW message 14 9 126 docsity.com

LZW Decoding

Word _ a b z

Index … 32 … 97 98 122 SEND

257 STOP

it Word tt ty y_ b bi ty bi it _bin

Index 259 260 261 262 263 265 266 267 268 264 itt Dictionary

Received 116 116 121 32 98 260 262 i Input t t y _ b t t y _ 258 b i t 258 i 266 _ b i 110 n 257 STOP

256 SEND

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LZW Decoding

Word _ a b z

Index … 32 … 97 98 122 SEND

257 STOP

it Word tt ty y_ b bi ty bi it _bin

Index 259 260 261 262 263 265 266 267 268 264 itt Dictionary

Received 116 116 121 32 98 260 262 i Input t t y _ b t t y _ 258 b i t 258 i 266 _ b i 110 n 257 STOP

256 SEND

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LZW Decoding

Word _ a b z

Index … 32 … 97 98 122 SEND

257 STOP

it Word tt ty y_ b bi ty bi it _bin

Index 259 260 261 262 263 265 266 267 268 264 itt Dictionary

Received 116 116 121 32 98 260 262 i Input t t y _ b t t y _ 258 b i t 258 i 266 _ b i 110 n 257 STOP

256 SEND

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