streak

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Description

Streak is an image artifact from the failure of other row- and column-correlated noise clean up algorithms, such as thm.deplaid and destripe, caused by boundries of hot and cold areas in radiance space. These algorithms utilize a black-mask technique that has the possibility of failure in certain images with extreme temperature differences.

It shows up predominantly in decorrelation stretch images as row- and column-correlated brightness variations of multiple pixel widths in emissivity images. Streak differs from plaid in that it is not a spectral variation, rather it is a brightness variation and is therefore an increased or decreased signal across all bands.

It generally occurs because the temperature masks used in these algorithms do not function perfectly.

destreak1.png

Last Updated: Feb-2011


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