Application of K-Nearest Neighbor Classification for Static Webcams Visibility Observation

Figure 15

Two errors made by the KNN algorithm: both images were labeled as having visibility of at least 500 m but were classified as having lower visibility. The left image (a) could be attributed to a possible electricity outage in the buildings. In the second image (b), the visibility of edges is disputable, leading to uncertainty in labeling.

(a)

(b)