In this paper it has been described a computer system for the processing and analysis of two-dimensional digital images of evaluated pork half-carcasses. The AOPW (pol. Analiza Obrazu Półtusz Wieprzowych) image analysis system was created in C#, in Visual Studio 2015, using the AForge.NET library. The development of the application was preceded by a requirement analysis, according to the software engineering procedures. Documentation in the form of UML diagrams was developed in Microsoft Visio. The AOPW application is used to analyze and extract the characteristics of pork halfcarcasses contained in two-dimensional digital images acquired during the slaughtering process of pigs. The application may be a part of a new method for evaluating and classifying pig carcasses according to the applicable EUROP classification. The developed system was divided into two modules: the first for processing and filtering image, enabling e.g. edge and shape detection, sharpening and image binarization. The second allows for image analysis and acquisition of characteristics of pork half-carcasses - descriptors. The presented work was created within the research project of National Research and Development Center PBS3/B8/26/2015.