FRQI With Multiple Color Palettes

Abstract — One common criticism of the Flexible Representation of Quantum Images (FRQI) is the limited color palette. A new extension to FRQI is proposed that addresses the issue. This extension uses another clever technique in quantum computing known as superdense coding, which allows the transmission of classical bits using a lower number of qubits. A superdense coding scheme is used as a “palette selector” where an FRQI state can choose which color palette should be used to decode its pixel information. FRQI images are separated into chunks where each chunk can have a different color palette. This extension only adds a few qubits to the entire image and allows for much more flexibility in FRQI.