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![Image Types
• Color Image (RGB type) – Three Planes
• Gray Scale Image – Single plane – Intensity range[0-255]
• Binary Image or bi level image – Intensity range[0 & 1]](https://image.slidesharecdn.com/day1-241113180915-413feade/85/image-processing-using-matlab-in-faculty-2-36-320.jpg)
image processing using matlab in faculty 2
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- 8. ❖ MATLAB (MatrixLaboratory) is a programming environment for algorithm development, data analysis, visualization, and numerical computation, developed by Mathworks. ❖ MATLAB is widely used for matrix-based computation designed for scientific and engineering use. ABOUT MATLAB
- 9. ❑ J. H.Wilkinson, George Forsythe, and John Todd, played important roles in the origins of MATLAB. ❑ Cleve moler invention on 1974’s. ❑ In the 1980’s, MATLAB was rewritten in C with more functionality (such as plotting routines) ❑ It gives support with other languages C/C++/Java/ FORTRAN. ❑ It’s speed is low for some processes and it is not suitable for large scale system ❑ The Mathworks, Inc. was created in 1984 ❑ The Mathworks is now responsible for development, sale, and support for MATLAB ❑ The Mathworks is located in Natick. BACKGROUND REVIEW
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- 11. WHAT ARE WINDOWSAVAILABLE ON MATLAB ?
- 12. • Command Window •Editor Window • Workspace • Current Directory MATLAB DESKTOP TOOLS
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- 14. clc , clear,close all save , load who , whos cd , edit ,ls input , disp version mkdir , pwd delete size length General Purpose Commands
- 15. ❑ Functions aresimilar to scripts ❑ Functions may take arguments ❑ Functions may return one or more values MATLAB Functions
- 16. ⚫ plot linearplot ⚫ stem discrete plot ⚫ grid add grid lines ⚫ xlabel add X-axis label ⚫ ylabel add Y-axis label ⚫ title add graph title ⚫ subplotdivide figure window ⚫ figure create new figure window ⚫ pause wait for user response Graph Functions (summary)
- 17. The graphical userinterface is a form of user interface that allows users to interact with electronic devices through graphical icons and audio indicator such as primary notation, instead of text-based user interfaces, typed command labels or text navigation. GUI:
- 18. ❑ Check boxes. ❑Buttons. ❑ Label buttons. ❑ Radio buttons. ❑ Sliders. ❑ Droplists. ❑ Text boxes. Basic GUI elements are:
- 19. • eye –Identity matrix---- x= eye(m,n). • ones – 1’s matrix ---- y=ones(m,n); • zeros – 0’s matrix ---- z=zeros(m,n); • magic – generate square matrix – w= magic(4); • rand – uniformly distributed -- q= rand(m,n); random numbers Elementary Matrices
- 20. A=5; save AA; load A B=1; C=A+B; disp(C); SAVEAND LOAD THE VARIABLE
- 25. TOOLBOXES ON MATLAB ❖Image Processing Toolbox ❖ Signal Processing Toolbox ❖ Robotics System Toolbox ❖ Power Electronics ❖ Control system ❖ RF Toolbox ❖ Wavelet Toolbox ❖ Deep Learning Toolbox ❖ Satellite Communications Toolbox ❖ DSP System Toolbox ❖ Statistics and Machine Learning Toolbox ❖Optimization Toolbox ❖ Data Acquisition Toolbox ❖ Database Toolbox
- 26. MATLAB APPLICATIONS 1. EmbeddedSystems Embedded systems are computer systems consisting of hardware and software components and are designed to do a specific task. 2. Control systems A control system is responsible for managing, giving commands and regulating the behavior of other devices or systems. 3. Digital signal processing Digital signal processing is the usage of digital processing such as by computers or specialized digital signal processors to perform a range of signal processing operations. 4. Wireless communications Wireless communication is a broad term used for connecting two devices using a wireless signal.
- 27. 5. Image processingand computer vision Image processing is mainly focused on the processing of raw images and making them ready for other tasks such as computer vision. 6. Internet of Things Internet of Things is the network of devices, vehicles and home appliances and others embedded with electronics, software, sensors, actuators, and connectivity which enables the exchange of data. 7. FPGA Design and Codesign Matlab enables hardware-software codesign by providing C/C++ and HDL code generation with targeted support for programmable SoC devices. 8. Computational Biology and Computational finance Computational biology is the study of biological data for better understanding of biological systems and relationships. Also, to develop quantitative applications for risk management, investment management, insurance, and econometrics.
- 28. 9. Robotics It involvesmechanical engineering, electronic engineering, and computer science to name a few to create robots or human-like machines. 10. Data Analytics Data Analytics is the process of studying data in order to gain insights. It is mostly done with the help of other software and tools. 11. Motor and power control Motor control algorithms regulate speed and other performance characteristics. Matlab algorithms help with energy efficiency, precision control, and system protection. 12. Deep Learning Deep learning is a broader family of machine learning.
- 29. SCOPE OF MATLAB Itis used in the research phase of any project. Research departments of companies generally can afford to buy the licenses for the entire department. It is highly convenient to use for data visualization and analysis in research studies and experiments. Every step of what happens to the data - from preprocessing, to analysis, to building and validating models, to statistical tests - can be done in MATLAB. Most scientists in the industry would have used MATLAB in their academic experience, thus they don't have to learn something new. Mathworks has done well in creating packages for specific areas of research to analyze their data.
- 30. SIMULINK IN MATLAB Simulinkis a block diagram environment used to design systems with multi domain models, simulate before moving to hardware, and deploy without writing code.
- 31. WHAT IS IMAGEPROCESSING ?
- 32. Digital image processingis the use of computer algorithms to create, process, communicate, and display digital images. Digital image processing algorithms can be used to: Convert signals from an image sensor into digital images. Improve clarity, and remove noise and other artifacts.
- 33. Binary or Black& White Image Binary: Each pixel is just black or white. Since there are only two possible values for each pixel (0,1), we only need one bit per pixel.
- 35. WHAT IS ANIMAGE ?
- 36. Image Types • ColorImage (RGB type) – Three Planes • Gray Scale Image – Single plane – Intensity range[0-255] • Binary Image or bi level image – Intensity range[0 & 1]
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- 38. Examples RGB image GrayScale Binary Image
- 39. Colour or RGBimage 0-255 0-255 0-255
- 40. Gray Image 0-255 Black &White or Binary 0-Black 1-White
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- 42. •Image sharpening andrestoration •Medical field •Remote sensing •Transmission and encoding •Machine/Robot vision •Color processing •Pattern recognition •Video processing
- 43. Image sharpening andrestoration
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- 47. Machine or roboticvision
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