Algoritmy pro rozpoznávání barevných kódů rezistorů

Abstract

The goal of this diploma thesis is to implement an algorithm that would be able to recognize the resistor markings and evaluate its value. The work will be implemented in Java for Android OS. The first part describes the various types of resistors and electronic components markings. Furthermore we will discuss the algorithms which can recognize color codes and current solutions which are able to recognize the resistor markings. Furthermore we will describe Android OS. In the end we will discuss the image processing. Reading the color codes on the components and evaluate their values from reference color tables takes a lot of time and it is uncomfortable. These problems can be solved by an automated system. There are only a few available solutions, and they do not provide good results. This is the reason for creating our own application which will provide better solutions. The existing applications usually cut the static region of interest, in which resistor must be placed. In the first step I have to find the best edge detector. After that I have to find the region of interest and detect the rotation angle. We will also need to find a suitable algorithm which will enumerate color code and calculate the correct values.