  Image processing on quantum platform is a hot topic for researchers now a
day. Inspired from the idea of quantum physics, researchers are trying to shift
their focus from classical image processing towards quantum image
processing.This paper starts with a brief review of the principles which
underlie quantum computing, and also deals with some of the basics of qubits
and quantum computing.Then this paper starts to deal with some different
methods of image storage, representation and retrieval in a quantum system.This
paper also describes the advantages of using those methods in quantum systems
compare to classical systems. In the next section, a short discussion on some
of the important aspects, comparison among them and applications of quantum
image processing is presented. A few other hot topics and open problems in
quantum image processing are mentioned in this paper. This review article will
provide the readership an overview of progress witnessed in the area of Quantum
Image processing while also simulating further interest to pursue more advanced
research in it.

Quantum Physics