streak

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.