Content area
Full Text
Abstract: The subject of this study is to show the application of fuzzy logic in image processing with a brief introduction to fuzzy logic and digital image processing. Digital image processing is an ever expanding and dynamic area with applications reaching out into our everyday life such as medicine, space exploration, surveillance, authentication, automated industry inspection and many more areas. Fuzzy logic, one of the decision-making techniques of artificial intelligence, has many application areas. Although it has been subjected to criticisms since its birth, especially in recent years, fuzzy logic has been proven to be applicable in almost all scientific fields. This shows that the concept of fuzzy logic will maintain its validity and the number of fields where it draws attention will increase further.
Keywords: Fuzzy Logic, Image Processing, Fuzzy Image Processing, Fuzzy Inference System.
1. INTRODUCTION
This work is structured into three parts. The first part gives a brief introduction to digital image processing [1]. Given the importance of digital image processing and the significance of their implementations on hardware to achieve better performance, this work addresses image processing algorithms like median filter, morphological processing, convolution operation and edge detection. The second part gives an introduction to fuzzy logic [2] and also covers topics concerning a range of technologies used in the fuzzy image processing systems, e.g. image sensors, signal processing units, memory technologies and displays. Finally, the applications of fuzzy logic in image processing are briefly explained.
2. THE CONCEPT OF IMAGE PROCESSING
An image may be defined as a two-dimensional function f(x, y), where x and y are spatial coordinates. The amplitude of f at any pair of coordinates (x, y) is called intensity or gray level of image at that point. When x, y, and the amplitude values of f are all finite, discrete quantities, the image is called a digital image. The processing of digital images by means of digital computer is called digital image processing. Note that, a digital image is composed of finite number of elements, each of which has a particular location and value. These elements are referred to as image elements, picture elements, pels, or pixels (see Figure 1). Pixel is the term used most widely to denote the elements of a digital image...