i ran into a problem, which i couldn’t solve on my own and have not found any solution here in the forum.
I’m working with Sentinel 2 Level 2A imagery and there are pixels in some Bands (B1, B6 and others) which have a value of 0.0, probably because they had less reflectance than detectable. When i view those bands in display those pixels appear as NaN (No-data colour is red), as the default Valid-Pixel Expression is
B1.raw > 0.
When i change that expression to
B1.raw >= 0, i see those pixels as 0.00000dl.
But after Muti-Size Mosaicking two images with all the bands of both images changed to
B1.raw >= 0(
B2raw >= 0,and so on), I still get NaN values after mosaicking in those places.
This leaves me with missing pixels after the classification later on.