  The advent of Quantum Computing has influenced researchers around the world
to solve multitudes of computational problems with the promising technology.
Feasibility of solutions for computational problems, and representation of
various information, may allow quantum computing to replace classical computer
in near future. One such challenge is the representation of digital images in
quantum computer. Several works have been done to make it possible. One such
promising technique, named Quantum Probability Image Encoding, requires minimal
number of qubits, where the intensity of n pixels is represented as the
statevector of log_2(n) qubits. Though there exist quantum circuit design
techniques to obtain arbitrary statevector, they consider statevector in
general Hilbert space. But for image data, considering only real vector space
is sufficient, that may constraint the circuit in smaller gate set, and
possibly can reduce number of gates required. In this paper, construction of
such quantum circuits has been proposed.
