Write a mathematical expression for extracting the decimal ASCII value of an embedded

character from a pixel pair; and with reference to the given ASCII table, find out the

embedded logo$.(10$ marks$)($c$)$ It is known that a company has embedded its logo consisting of three characters, each of

which into a pair of two pixels of a video product to assert its IP ownership. The video

product is in an uncompressed $32-$bit RGBA format.

Each of the eight bits of an embedded character is inserted, from the left$-$most bit $($MSB$)$

to the right$-$most bit $($LSB$),$ into the LSB of each of the sub$-$pixels of a pixel pair,

$\{$:$B_1{A}_1)$ and $(R_2{G}_2{B}_2{A}_2),$ respectively, as shown in the following table.

Write a mathematical expression for extracting the decimal ASCI value of an embedded

character from a pixel pair; and with reference to the given ASCII table, find out the

embedded logo$.(10$ marks$)$

Decimal