Predicting Times of Partial Solar Eclipse Event based on the Lens Flare Feature in Sequence of Images taken from Smartphone Camera by means of Sketch Filter
10.2478/bjlp-2023-00000186
Keywords:
Partial solar eclipse, lens flare, sketch filter on camera, three points anchor of extrapolationAbstract
To predict times in a collection of events and the duration of the partial solar eclipse which occurred on 20th April 2023 at Bandung city, West Java province of Indonesia can be accomplished by just a collection of photograph pictures. The pictures are taken from a smartphone camera with sketch filter capability. By analyzing the boundary of the lens flare feature on the series of recorded pictures after pre-processing, the size and the locations of the overlapped regions between the sun and the moon can be identified and analyzed chronologically. The movement trajectory in a curve shape of the overlapped region centers can be obtained by extrapolating three center of the overlapped regions as the three points anchor that can be used to predict the start and end times also the peak time of the solar eclipse event