PHOTOGRAMMETRIC ENGINEERING & REMOTE SENSING
October 2016
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Figure 6. Band-by-band comparison of SNR, spatial resolution, and spectral information among the original HR MS image, binned LR MS image,
and pansharpened HR MS image (18 lux, 100 ms). From the top row to the bottom row: blue, green, red, and near infrared spectral band.
Figures 4 and 5, it can clearly be seen that: (1) the SNR
of the pansharpened image is much higher than that of
the original high resolution MS image; (2) the color of
the pansharpened image is almost the same as those of
the 4×4 binned low resolution MS image and the origi-
nal high resolution MS image; and (3) the spatial detail
of the pansharpened MS image is identical to that of the
original high resolution Pan image. It can also be ob-
served that the color of the original high resolution MS
image appears slightly different than those of the 4×4
binned low resolution MS image and the pansharpened
MS image, because of the presence of the photon noise
in the original high resolution MS image.
