Joint quality measure for accuracy assessment of pansharpening methods

A new joint quality measure JQM which is a sole measure is proposed for quality ranking of pansharpening methods. It is based on a newly proposed composite similarity measure CMSC which consists of means, standard deviations and correlation coefficient and is translation invariant with respect to all parameters. JQM itself consists of a weighted sum of two terms. First term is measured between a low pass filtered pansharpened image and original multispectral image in a reduced resolution scale. The second one - between weighted intensity calculated from pansharpened image and original panchromatic image in a high resolution scale. Experimental results show advantages of a new measure JQM for quality assessment of pansharpening methods on the one hand and drawbacks of already known measure QNR on the other hand.