A description of the Huffman source encoding algorithm.
One particular
source coding algorithm is the Huffman encoding algorithm. It is a source coding
algorithm which approaches, and sometimes achieves, Shannon's bound forsource compression. A brief discussion of the algorithm is also given in
another module .
Huffman encoding algorithm
Sort source outputs in decreasing order of their probabilities
Merge the two least-probable outputs into a single output whose
probability is the sum of the corresponding probabilities.
If the number of remaining outputs is more than 2, then go to
step 1.
Arbitrarily assign 0 and 1 as codewords for the two remaining
outputs.
If an output is the result of the merger of two outputs in a
preceding step, append the current codeword with a 0 and a 1 toobtain the codeword the the preceding outputs and repeat step 5. If
no output is preceded by another output in a preceding step, thenstop.
with probabilities {
,
,
,
}
. As you may recall, the entropy of the source was
also
.
In this case, the Huffman code achieves the lower bound of
.
the study of living organisms and their interactions with one another and their environment.
Wine
discuss the biological phenomenon and provide pieces of evidence to show that it was responsible for the formation of eukaryotic organelles in an essay form
advantage of electronic microscope is easily and clearly while disadvantage is dangerous because its electronic. advantage of light microscope is savely and naturally by sun while disadvantage is not easily,means its not sharp and not clear
Abdullahi
cell theory state that every organisms composed of one or more cell,cell is the basic unit of life
Abdullahi
is like gone fail us
DENG
cells is the basic structure and functions of all living things
A scanning electron microscope (SEM) is ideal for situations requiring high-resolution imaging of surfaces. It is commonly used in materials science, biology, and geology to examine the topography and composition of samples at a nanoscale level. SEM is particularly useful for studying fine details,
