How many bits are required to store a 128 times 128 byte ima

How many bits are required to store a 128 times 128 byte image in memory? Define each of the following terms in the context of digital image acquisition: sampling quantization Briefly explain the process of applying a 4 times 4 sharpening filter mask to a digital image in the spatial domain. Give an example of such a filter mask. Briefly describe the Domain Name Service [DNS] and its primary function? Convert each of the following to decimal: 37_8 1101_2 What is the largest unsigned decimal integer that can be represented in 10 bits? What are the advantages and disadvantages of list mode acquisition relative to matrix mode?

Solution

a) 128*128bytes memorey

we know 1 byte = 8bits

128*128bytes memorey= 128*128* 8 = 131072 bits.

b)

sampling is process of converting a contiuous time signal (image) to discerete time signal,

where as in quantization is a process of converting continous amplitude signal into discreate amplitude signal.

d) The Main function of DNS is to translate domain names into IP Addresses, which computers can understand. It also provides a list of mail servers which accept Emails for each domain name.

e) 37₈ = 7*8⁰ + (3*8¹) = 31

1101₂ = (1*2⁰ ) +(0*2¹ ) +(1*2²) + (1*2³ ) = 13

f) largest 10 bit unsigned integer = 1111111111₂ = 1023