Mobile Application For Mud Crab Weight Estimation

Weight is one of several important parameters in the transactions process of buying and selling of mud crab. It must be known accurately to determine the price of mud crab. All this time, sellers and buyers on the market generally estimate the weight of mud crab just by relying solely on the senses. It does not only potentially cause losses for both sellers and buyers but also has no scientific basis. This research is conducted to assist sellers and buyers in estimating the weight of mud crab by developing a mobile application that uses image processing techniques. This mobile application estimates the weight of mud crab based on the carapace width of mud crab from the image obtained through the camera. This mobile application has been tested on a smartphone device with the operating system Android 4.1.2 Jelly Beans (API level 16). Testing was performed by comparing the estimated weight and carapace width of mud crab obtained through a smartphone device with the actual weight and carapace width of mud crab obtained through direct measurements using Vernier caliper and the scales. The result of this research shows that this mobile application has a good level of accuracy. It can be proving by the mean absolute error rate for the width of mud crab carapace which is only 0.086 cm and mean absolute error rate for the weight of mud crab which is only 2.643 gram. This mobile application is helpful for sellers and buyers to estimate the weight of mud crab.