SeaDAS Tiff 8-bit

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m_brown
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Joined: Thu Nov 04, 2021 6:34 pm America/New_York

SeaDAS Tiff 8-bit

by m_brown » Mon May 23, 2022 9:05 am America/New_York

Hello,

I am using l3mapgen to output L3 spatiotemporal composites (created using l2bin/l3bin) as .tiff files. I am noticing that when I subsequently load these .tiff files (into SeaDAS or elsewhere), the data has been converted from float to 8-bit. Is there a way to tell l3mapgen to write the .tiff files out as float, or is there scaling information somewhere in the .tiff metadata to convert the 8-bit values to float? Thanks!

Mike

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m_brown
Posts: 12
Joined: Thu Nov 04, 2021 6:34 pm America/New_York

Re: SeaDAS Tiff 8-bit

by m_brown » Tue May 24, 2022 10:00 am America/New_York

Just to follow up, apologies if I have misunderstood the .tiff format (i.e. that these files may be inherently 8-bit, ranging 0-255). If that's the case, after being loaded in, is there a way to convert the data to their original float values, e.g. with scaling info provided in the metadata?

Thanks!
Mike

OB.DAAC - SeanBailey
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Re: SeaDAS Tiff 8-bit

by OB.DAAC - SeanBailey » Thu May 26, 2022 11:56 am America/New_York

Mike,

To get floating point values in the TIFF output from l3mapgen, set 'apply_pal=no' (or false, or 0).

Sean

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