This document provides an overview of plotting and image processing capabilities in Matlab. It discusses how to generate basic scatter plots and customize axis properties. It also explains how digital images are constructed as arrays and can be displayed, rotated, and converted to grayscale using commands like plot, surf, image, and imagesc. The document demonstrates plotting multiple lines and images on the same figure. It describes how image processing techniques like Sobel filtering can be used to detect edges in an image.
I have made this when I was learning AutoCAD. There are command details, what they are used for and suitable example to see how the command works.
Hope it will be useful for beginners.
I have made this when I was learning AutoCAD. There are command details, what they are used for and suitable example to see how the command works.
Hope it will be useful for beginners.
Electrical Engineer:
The electrical engineer is someone who applies the laws of physics and electricity to create process information and transmit energy. How AutoCAD is used in electrical engineering:
• Design and test the competency of an electrical equipment.
• Create electrical diagrams.
• Predict the voltage and power capacity of a particular plant.
You can visit autocad short courses by LiveTrainingLab.
https://livetraininglab.pk/courses/autocad-training/
This file contains all the practicals with output regarding GTU syllabus. so it will help to IT and Computer engineering students. It is really knowledgeable so refer these for computer graphics practicals.
For all who wish to learn c graphics programming, no knowledge of graphics concepts is required. C Graphics programming is very easy and interesting. You can use graphics programming for developing your own games, in making projects, for animation etc. It's not like traditional C programming in which you have to apply complex logic in your program and then you end up with a lot of errors and warnings in your program. In C graphics programming you have to use standard library functions ( need not worry if you don't know functions ) to get your task done. Just you pass arguments to the functions and it's done. On this website you will find almost all functions with detailed explanation and a sample program showing the usage of a function. To make things easy you are provided with executable files which you can download and execute. Firstly you should know the function initgraph which is used to initialize the graphics mode . To initialize graphics mode we use initgraph function in our program. initgraph function is present in "graphics.h" header file, so your every graphics program should include "graphics.h" header file. We will discuss initgraph withe help of following sample program:-
AutoCAD is a computer-aided drawing application used for creating blue-prints for buildings, Create a bridges and computer chips. CAD is mainly used by draftsman, although engineer, surveyors and architecture, may need to use the software application.
Learn to manipulate numbers in R using the built in numeric functions. This tutorial is part of the Working With Data module of the R Programming course offered by r-squared.
Electrical Engineer:
The electrical engineer is someone who applies the laws of physics and electricity to create process information and transmit energy. How AutoCAD is used in electrical engineering:
• Design and test the competency of an electrical equipment.
• Create electrical diagrams.
• Predict the voltage and power capacity of a particular plant.
You can visit autocad short courses by LiveTrainingLab.
https://livetraininglab.pk/courses/autocad-training/
This file contains all the practicals with output regarding GTU syllabus. so it will help to IT and Computer engineering students. It is really knowledgeable so refer these for computer graphics practicals.
For all who wish to learn c graphics programming, no knowledge of graphics concepts is required. C Graphics programming is very easy and interesting. You can use graphics programming for developing your own games, in making projects, for animation etc. It's not like traditional C programming in which you have to apply complex logic in your program and then you end up with a lot of errors and warnings in your program. In C graphics programming you have to use standard library functions ( need not worry if you don't know functions ) to get your task done. Just you pass arguments to the functions and it's done. On this website you will find almost all functions with detailed explanation and a sample program showing the usage of a function. To make things easy you are provided with executable files which you can download and execute. Firstly you should know the function initgraph which is used to initialize the graphics mode . To initialize graphics mode we use initgraph function in our program. initgraph function is present in "graphics.h" header file, so your every graphics program should include "graphics.h" header file. We will discuss initgraph withe help of following sample program:-
AutoCAD is a computer-aided drawing application used for creating blue-prints for buildings, Create a bridges and computer chips. CAD is mainly used by draftsman, although engineer, surveyors and architecture, may need to use the software application.
Learn to manipulate numbers in R using the built in numeric functions. This tutorial is part of the Working With Data module of the R Programming course offered by r-squared.
metode numerik stepest descent dengan rerata aritmatika dipresentasikan pada seminar nasional matematika universitas negeri malang pada tanggal 13 agustus 2016
MATLAB Script or programs are sequences of MATLAB commands saved in plain text files. When you type the name of the script file at the MATLAB prompt the commands in the script file are executed as if you had typed them in command window. Code for a script is done in an Editor window and saved as m-file.
In case your code has errors, MATLAB will show an error message in the command window, when you try to run the program .
Error message will be hyperlinked to the line in the file that caused the error.
User-defined functions are similar to the MATLAB pre-defined functions. A function is a MATLAB program that can accept inputs and produce outputs. A function can be called or executed by another program or function.
Code for a function is done in an Editor window or any text editor same way as script and saved as m-file. The m-file must have the same name as the function.
A MATLAB function that accepts another function as an input is called a function function. Function handles are used for passing functions to function functions. Syntax for function function is same as simple functions, but one or more input arguments will be function handles.
Multiple functions within one function file is called local function. Name of function file should be name of main function. Main function can be called from the command window or any other function. Local functions are typed in any order after the main function. Local functions are only visible to other functions in the same file.
A private function is a function residing in a sub directory with the name private. Private functions are visible only to functions in the parent directory.
Chart and graphs in R programming language CHANDAN KUMAR
This slide contains basics of charts and graphs in R programming language. I also focused on practical knowledge so I tried to give maximum example to understand the concepts.
I am Boris M. I am a Computer Science Assignment Help Expert at programminghomeworkhelp.com. I hold MSc. in Programming, McGill University, Canada. I have been helping students with their homework for the past 7 years. I solve assignments related to Computer Science.
Visit programminghomeworkhelp.com or email support@programminghomeworkhelp.com.You can also call on +1 678 648 4277 for any assistance with Computer Science assignments.
How to combine interpolation and regression graphs in RDougLoqa
This is a general tutorial that shows you how to take Census data, aggregate columns/rows and use interpolation lines and regression curves in your graphs. You can graph individual rows/columns or aggregate rows/columns. There is an example of graphs created here: https://www.linkedin.com/pulse/comparison-annual-income-going-back-from-2017-doug-loqa-doug-loqa/
statistical computation using R- an intro..Kamarudheen KV
This presentation deals with some basics of R language. It is very useful for benners in R. It describes the basics in a very easy manner, so those who are not familiar with R it would be very helpful.
I am Kefa J. I am a Computer Science Assignment Help Expert at programminghomeworkhelp.com. I hold an Ph.D. in Programming, Princeton University, USA Profession.. I have been helping students with their homework for the past 5 years. I solve assignments related to Computer Science.
Visit programminghomeworkhelp.com or email support@programminghomeworkhelp.com.
You can also call on +1 678 648 4277 for any assistance with Computer Science assignments.
Vision systems_Image processing tool box in MATLABHinna Nayab
Practicing simple tasks and functions from Image Processing ToolBox of MATLAB (Beginner Stuff):
>>Matrices
>>Arithmetic operations
>>Image Operations: Scaling, Adding and removing Noise from Images
>>Some Basic 'colormap' Functions etc.
2. Contents for Lecture 5
• Plotting capabilities in Matlab
• Digital images and their construction
• Image processing
3. Matlab offers a rich graphics
environment and even if you do not
feel comfortable programming in
Matlab you should make use of its
graphics capabilities as it will allow
you to produce much higher quality
graphs and figures than is possible
in Excel, for example.
7. The most basic function you can use is to
generate scatterplots.
Imagine that you have an array of data where the
first column contains the year (1985-2010) in
which a sample was taken and the second is
some property of that sample.
A basic piece of exploratory data analysis would
be to plot these data against one another.
8.
9. The Matlab command is “plot”
i.e.
plot(Data(:,1),Data(:,2))
This defaults to producing a solid line in blue
10.
11. plot(Data(:,1),Data(:,2))
We can make use of a shorthand for line symbols,
line colours and line types to vary this. Some
examples:
Colours Types Symbols
b = blue - = solid line o = circles
r = red : = dotted s = square
k = black -- = dashed d = diamond
g = green ^ = triangle
20. A 3D line plot:
figure
plot3(Data(:,1),Data(:,2),Data(:,3),‟k‟,‟linewidth‟,2)
21. If we have an array of data we can plot it as a surface,
where the x and y axes are given by the size of the array
and the z-axis by the values in the array
22. If we have an array of data we can plot it
as a surface, where the x and y axes are
given by the size of the array and the z-
axis by the values in the array.
surf(CIV1900_images{4})
25. Images may also be displayed using the “image”
or “imagesc” commands.
Hopefully the previous example has highlighted
that an image is simply an array of digital
numbers.
This example was coloured but it was a “false
colour” image. There was only level to the array
and the colouring was applied in bands:
high values (peaks) in red; low values (troughs) in
blue.
It might as well be a grey-scale image and we can
make it so by changing the “colormap”.
27. A “true colour” image (like a jpeg file) is
constructed rather differently. Instead of a single
layer to the array, it has layers for each colour:
Three layers for an RGB image
Four for a CMYK image
Each layer ranges from 0 to 255 and tells you how
red or green or blue the colour is at that point.
When they are all combined they give you the
colour at that location, which using a legend, you
can relate to properties of the image.
28. Colour maps in Matlab by default range from 0 to
63.
The “image” command displays an image literally
relating the values in the array to the colour map.
The “imagesc” command rescales the values in
the array so that they fit the colour map.
For example, the values in our image go from 0-
255 so using “image” we would expect about 75%
of the image to wash out as white
32. figure
for loop1=1:9
subplot(3,3,loop1)
imagesc(CIV1900_images{loop1*3+4})
axis image
colormap('gray')
end
33. Matlab provides a flexible tool for producing
graphics.
This includes images, which are simply arrays of
numbers (1 layer for grey-scale, more for true
colour).
Image processing is an important area of
engineering science:
Stress analysis on beams using photostress
systems;
Particle Imaging velocimetry;
Monitoring of land use change using remote
sensing;
Face or fingerprint recognition software, etc.