Reproducibility of Pansharpening Methods and Quality Indexes versus Data Formats

In this work, we investigate whether the performance of pansharpening methods depends on their input data format; in case spectral radiance, either its original floating-point format or an integer-packed fixed-point format. It is theoretically proven and experimentally demonstrated that based multiresolution analysis are unaffected by Conversely, crucial for component substitution, unless intensity calculated means a multivariate linear regression between upsampled bands lowpass-filtered Pan. Another concern related to formats quality measurements, carried out normalized indexes depend which they calculated. We will focus some most widely used with-reference provide novel insight into behaviors. Both theoretical analyses computer simulations, GeoEye-1 WorldView-2 datasets with products nine methods, show does not purely radiometric indexes, while it significantly format, fixed-point, index, like angle mapper. The dependence weak balance similarity, family Q2n, hypercomplex algebra.