Electronics and Communication Engineering - Exam Questions Papers - Discussion

Discussion Forum : Exam Questions Papers - Exam Paper 3 (Q.No. 37)
37.
An image uses 512 x 512 picture elements. Each of the picture elements can take any of the 8 distinguishable intensity levels. The maximum entropy in the above image will be
2097152 bits
786432 bits
648 bits
144 bits
Answer: Option
Explanation:

Picture elements (pixel) = 512 x 512 = 262144

Information per picture element N = log2 M

M = 2N

8 = 2N

N = 3

Information for 262144 pixels = 262144 x 3 = 786432 bits

Entropy is same as average information per message.

Discussion:
1 comments Page 1 of 1.

Deelak said:   6 years ago
But here, Maximum entropy is required. Then how it will be? Please explain in detail.

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