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USF-IMARS / wv-land-cover

:earth_americas: Processing scripts for decision-tree land use classification on worldview 2 imagery
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calibration factors do not match the latest published by MAXAR #38

Open 7yl4r opened 2 years ago

7yl4r commented 2 years ago

latest calibration factors (gain & offset) in this pdf.

How to check atm correction: choose area that doesn't change w/ time, compare all images from different dates and look for images w/ very different colors.

7yl4r commented 2 years ago

Or... is it this pdf:

ABSRADCAL_FLEET_2016v0_Rel20170606(4).pdf

mjm8 commented 2 years ago

Hi Tylar,

Gain/offset values should change over time as the sensor calibration parameters change. One important element is that the WorldView-2 imagery I worked with had already been radiometrically calibrated, so gain/offset and subsequent function were not necessary. Newer data may need to be revisited though.

Best, Matt

On Fri, Nov 5, 2021 at 12:51 PM Tylar @.***> wrote:

Or... is it this pdf:

ABSRADCAL_FLEET_2016v0_Rel20170606(4).pdf https://github.com/USF-IMARS/wv2-processing/files/7487634/ABSRADCAL_FLEET_2016v0_Rel20170606.4.pdf

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