49843608-Complete-thesis-Report-merged

Matlab is therefore built upon a foundation of

This preview shows page 41 - 46 out of 68 pages.

courses in matrix theory, linear algebra, and numerical analysis. MATLAB is therefore built upon a foundation of sophisticated matrix software, in which the basic data element is a matrix that does not require pre dimensioning. MATLAB is a product of The Math works,Inc. and is an advanced interactive software package specially designed for scientific and engineering computation. The MATLAB environment integrates graphic
Image of page 41

Subscribe to view the full document.

31 illustations with precise numerical calculations, and is a powerful, easy-to-use, and comprehensive tool for performing all kinds of computations and scientific data visualization. MATLAB has proven to be a very flexible and usable tool for technical computing. It integrates computation, visualization, and programming in an easy-to-use environment where problems and solutions are expressed in familiar mathematical notation. Typical use includes: - Math and computation -Algorithm development -Modeling, simulation, and prototyping -Data analysis, exploration, and visualization -Scientific and engineering graphics -Application development, including graphical user interface building.
Image of page 42
32 Chapter- 3 Problem Statement Whenever an image is converted from one form to another such as, digitizing, scanning, transmitting, storing, etc., some of the degradation occurs at the output. Hence, the output image has to undergo a process called image enhancement which consists of a collection of techniques that seek to improve the visual appearance of an image. In the image if the local region is somewhat smooth, then the new value of the pixel can be determined by averaging neighboring pixel values. On the other hand, if the local region contains edges a different type of enhancement method should be used. However, it is extremely hard, if not impossible, to set the conditions under which a certain enhancement method should be selected, since the local conditions can be evaluated only vaguely in some portions of an image, therefore, an enhance method needs to be capable of reasoning with vague and uncertain information; this suggests the use of fuzzy logic. In this thesis work a technique is designed by using Fuzzy Inference System in MATLAB 7.5 (is the process of mapping from a given input to an output using fuzzy logic). Objectives: To study the existing enhancement methods in spatial, frequency domain and fuzzy domain methods. To design the technique using FIS (Fuzzy Inference System) to improve the image contrast. Implement it in MATLAB 7.5 Test the designed technique using some degraded, low contrasted images.
Image of page 43

Subscribe to view the full document.

33 This designed technique is able to improve contrast of the image as compare to Thresholding method, Histogram Equalization, Gaussian Low-pass Filter and Spatial Averaging Filter. An algorithm is proposed and implemented to enhance image using fuzzy technique. This algorithm is used to convert the image properties into fuzzy data and fuzzy data into defuzzification.
Image of page 44
34 Chapter-4 Design and Implementation Fuzzy inference system is the process of formulating the mapping from a given input to an output using fuzzy logic. The mapping then provides a basis from which decisions can
Image of page 45

Subscribe to view the full document.

Image of page 46
You've reached the end of this preview.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern