Marynel Vázquez – TextRain

by Marynel Vázquez @ 3:40 am 12 January 2011

This is my version of TextRain in OpenFrameworks:

The idea is very simple. A background image is used to estimate the regions in the video that are being occupied by active observers. The difference image between the current frame captured by the camera and the background is smoothed, thresholded and dilated. These operations generate a foreground map that allows to determine when to change the position of the text.

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