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+--- Thread: SNR calculator method (/showthread.php?tid=119)
SNR calculator method - rese_support - 21-Nov-2017
Quote:Hi,
I use your software PARGE, but I wonder how the SNR calculator method works. Can you detail it, please ?
That's only a small piece of software which does as follows:
- searches for the most homogeneous area in an image
- apply a high pass filter
- characterize the noise from this image patch, take its STDEV
- average full image or sample spectra to get the signal
- divide signal by noise
The results are ok for relative validation (ie. band-to-band in hyperspectral systems), but one should be careful for system comparison unless the same target is observed.