[Help]: regression trend removal causing artifacts

[SteffanDavies]

Regression method is causing border artifacts:

Do you recommend any workaround except for increasing chunksize (it is currently 2048)

[AlexeyPechnikov]

You are right: we need to increase the chunksize to have a single chunk for the regression and revert it back later. To prevent performance degradation just filter out low correlation pixels. Typically, 1000 - 10000 pixels are more than enough for robust regression estimation.