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id: detection | ||
title: Detection tips | ||
sidebar_label: Detection | ||
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## Masking some regions | ||
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It is sometimes necessary to mask specific regions to avoid reflection or artifacts and enhanced detection. We will show a straightforward manner with the movie [ZFL_004]( http://data.ljp.upmc.fr/datasets/TD2/#ZFL_004) from the two-dimensional dataset. | ||
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1. Compute the background as usual. In this case, with will take the average. ![background](assets/background.png) | ||
3. Construct a mask using [Gimp](https://www.gimp.org/) or [Inkscape](https://inkscape.org/) by taking the background image and masking irrelevant areas (in black or white, depending on the system). ![background](assets/background_masked.png) | ||
5. Load the new background image in FastTrack and performs the tracking. ![background](assets/multi_tracked.png) |