SHIP PART SURFACE EVALUATION USING IMAGE PROCESSING TOOLBOX IN MATLAB

Abstract

Corrosion will continue present on the hull as the material (metal) experiences the process of chemical degradation by influence from its environment which is seawater. Meanwhile, marine growth also will keep growing because the ship is continuously in contact with seawater. These problems also happen with a boat made of fibre-glass reinforced plastic (FRP). Furthermore, these types of defects will cause early failure to the hull part and also shortened the service life of the ship. Currently, both defects are detected by human inspection or the non-destructive testing (NDT) method. In this research, we purpose to use the Image Processing Toolbox in MATLAB to identify types of Image Processing methods that are suitable to use for the image, defining percentage, and area of defects. The defects are quantified using the developing MATLAB Graphical User Interface (GUI).