Image quality measure using the phase quantization code

In this paper, we propose a new image quality measure using the phase quantization code (PQC), which represents the sign of phase quadrature output of a complex filter such as Gabor filters. When an image is degraded by image compression, noise, transmission error, and so on, signs of phase quadrature outputs also change. Therefore, degradation of the image quality results in the change of the PQC of the image. Experimental results with the LIVE data set show the effectiveness of the proposed quality measure.