Die herkenning en verwerking van tweedimensionele beelde

Abstract

A mass of free moving trout can be determined by using a digital camera, a computer and special digital processing software (Troutedge). The aim of this research is to calculate the mass of a trout with the application of effective two dimensional image analyses on the length of the trout. The problem is that the trout must first be caught in order to be weighed and is difficult as well as a time wasting process. This is why an alternative method is necessary. If the trout farmer applies the proposed data for indicating the growth of the fish, he can group fish of the same mass together. A further benefit to the trout farmer is that the life expectancy can be determined, and disease can be controlled This study can be of tremendous help with important management and marketing decisions. Various methods and techniques were researched to calculate a trout's mass by using its length. The problem can be solved by the application of the following steps: a) A digital camera must be used to take valid images of photos of the fish. b) Two-dimensional images are divided into segments, for example images of the periphery of the photos. c) Digital signal processing techniques will be used to analyze the images. Information was gathered by means of a literature study, personal interviews and experimental research. The literature study includes relevant, selected sources on digital image processing and the importance of applying two-dimensional image processing.