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This is the fifth in a series of videos I am creating of the research I am performing under the direction of University of Nebraska Lincoln Professor Troy Gilmore to determine whether we can use images taken at the weir on North Platte River at the Nebraska-Wyoming State Line to replicate measurements of discharge and stage by extracting features from the images and using measurements from USGS sensors as ground truth.

It is necessary to search images with odd (non-rectangular) regions of interest. Eventually, we want to be able to set those regions of interest automatically without manual intervention, but they will help greatly in algorithm development to get started.