filtersim: etype of unconditional simulations shows a surprising lot of structure...
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This is actually not a bug. I ran 100 unconditional realizations over a grid of size 150 by 150, same size as the training image. The value range from TI is 0 to 0.53. The value range of the etype over 100 realizations is 0.26 to 0.33, close to the mean value 0.28 from TI. The structures shown in the etype is just the detailed information within a small range. Those structures disappear when set the color bar range same as the TI. The etype value range will be even smaller with more realizations.