Fractal analysis of the architectural irregularity of selected ancestral house in Cebu Province, Philippines

This study aims to examine the fractal dimensions of the “Balay na Tisa” in year 2008, 2011 and 2015 photographs to define the structural differences across time. The photographs were converted into a binary image using the simplest form of the image processing known as the thresholding method. The binary image provides simple view and ease for computing its fractal dimension using the three photographs of the house with the same angle in different years. The photographs were classified into front view and left view of the house. The three photographs including the whole photograph (front and left view) of the house in different year underwent a Fractal analysis in five trials. It was found out that it was in 2011 that the fractal dimension of the architecture was most rugged. Analysis verified that these complexities in the regularity and changes, as exemplified by the p-value of 0.000, of the structure are accounted to by the visits of several typhoons and other naturally-driven occurrences. Also, as time progressed the integrity of the structure was affected as caused by the leaks on the ceiling and strength of the materials used. This leads to the researchers valuing of the ancestral house as to mention of restoration and preservation techniques. Keywords: Thresholding, Preservation, Restoration, Fractal Dimension, ancestral house