A novel representation for multi-channel log-polar quantum images

Mostly existing quantum image models represent image in Cartesian coordinates. Some complicated affine transformation cannot be easily handled in Cartesian coordinates. In this paper, a new representation of Multi-Channel log-polar quantum image (MCLPQI) sampled in log-polar coordinates is proposed. This form contains the image RGB color information and transparency α of the corresponding pixel. Then we give the polynomial preparation process which proves that our quantum image representation state can be made in a feasible time complexity. Finally we discussed color transformation among different channels and single channel color transformations, transparency adjustments. Analysis demonstrates that the MCLPQI is a efficient quantum log-polar color image representation.