This paper presents a sensor system for detecting defects in ship hull surfaces. The sensor was developed to enable a robotic system to perform grit blasting operations on ship hulls. To achieve this. the proposed sensor system captures images with the help of a camera and processes them in real time using a new defect detection method based on thresholding techniques. https://www.diegojavierfares.com/mega-grab-Pilot-Rock-H-16-B6X2-Park-Style-Outdoor-BBQ-Charcoal-Grill-w-Swivel-4-Pack-p12685-super-choice/