Lm threshold on normalized bottom contrast Ls-Lsw -Lm0001.0/000.5/004.p/0255 - For a solution by band j,
- any pixel which exhibits normalized bottom contrast Lr=(Ls-Lsw)
- less than threshold Lm in band j
- is considered too faint for modeling: it is declared optically deep
- All Lm values must be >0
- May be specified in real number like 2.3
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Lm=255 Lm can be specified to 255 to disable totally any particular band solution - SIG: this is not compatible with the SIG trick though, in the -Z argument
- SIG: for SIG to operate as desired, please make Lm<=10 for bands bm[1] to FirstSIG
- FirstSIG: see Syntax_Z
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p (optional) For progressive dynamic setting of Lm: darker pixel are assigned a higher Lm value - this combats electronic noise or faint turbidity
- progressive Lm is no less than original Lm/4, but increases as Lr[cKMin] decreases
- for example, see its effect in progressive_Lm, with -Lm0001.0/004.p/008.p/00005
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For a Landsat 8 OLIP image: -M/@000001/@000002/00003/00004/@0005/00006/00007 -Lm/00001.0/000001.0/001.0/0001.0/0250.0/250.0/250.0 Thie result is: - the SWIR, NIR and Red solutions are disabled
- the PAN and Green solutions are enabled
- they shall be tested int that order
- if the PAN solution is refused, then the Green solution shall be tested
- if none is accepted, the result is: deep water
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