Found 163 Articles for MATLAB

In MATLAB, "linear filtering" is a technique used to apply a linear filter to a digital image. The fundamental principle behind the working of linear filtering is convolution. This article is meant for explaining the concept of linear filtering and how to perform linear filtering without using the "imfilter" function in MATLAB. What is Linear Filtering? In digital image processing, the process of applying a linear filter (also called convolution kernel) to a digital image is called linear filtering. The working of linear filtering is based on the concept of convolution. In the process of linear filtering, a convolution ... Read More

MATLAB provides various built-in functions to reverse a string of text. In this tutorial, I am going to explain all the commonly used methods to reverse a string in MATLAB. Reverse a String Using "reverse" Function in MATLAB There is a built-in function "reverse" in MATLAB that we can use to reverse a string. Syntax reversed_string = reverse(string); The steps involved in reversing a string using the "reverse" function are given below − Step (1) − Create a string of text. Step (2) − Call the "reverse" function to reverse the string. Step (3) − Display the ... Read More

In MATLAB, there are various methods and functions for reversing a given number. In this tutorial, I will explain all these methods one-by-one with the help of examples. Reverse a Number Using "fliplr" Function in MATLAB The "fliplr" is a built-in function in MATLAB that we can use to reverse a given number. Syntax reversed_num = fliplr(number); Here, the "number" must be a string. Here are the steps involved in reversing a given number using the "fliplr" function in MATLAB. Step (1) − Input the number. Step (2) − Convert the input number to a string. For ... Read More

MATLAB provides various methods and functions to remove spaces in a string. In this tutorial, we will cover the commonly used methods for removing extra spaces in a string. So, let’s start. Remove White Space in a String Using "isspace" Function In MATLAB, the "isspace" function is a built-in function that is used to determine and remove the ASCII white space present in a string. Syntax string_without_space = isspace('input_string'); Example Let us take an example in MATLAB programming to use this function to remove white spaces in a string. % MATLAB code to remove white space from ... Read More

In mathematics, there are several types of numeric values such as integers (having no fractional part), floating point numbers (having fractional parts separated by a decimal), and more. In some data analysis and other computational applications, we are given floating point numbers that contain a decimal part, i.e., digits after a decimal point. But we require only integers. Hence, if you are using MATLAB as your data processing tool, then you can use it to remove decimals present in the given number. This tutorial is primarily meant for explaining the different methods of removing decimals from a given number using ... Read More

In MATLAB, reading a text file backwards involves reversing the order of the lines written in the file. We can use MATLAB to reverse the order and read the text file backwards. For this, MATLAB provides various methods using different functions and algorithms. In this tutorial, I will explain the commonly used methods to read a text file backward using MATLAB. Create a Text File in MATLAB In MATLAB, we can create a text file using the built-in functions "fopen" and "fprintf". Example The following example demonstrates the process of creating a text in MATLAB. % MATLAB code to ... Read More

Reading an image file is the first step in any digital image processing task. In MATLAB, reading an image file means the process of inputting or loading the digital image into the MATLAB workspace and store it in a variable. Let us now understand the process of reading an image file in MATLAB with the help of examples. Read an Image File in MATLAB In MATLAB, there is a built-in function named "imread" in the function library that is used to read an image file. Syntax img = imread(imageFilePath); Here, "img" is a variable to store the input ... Read More

MATLAB is an efficient tool to process and manipulate matrices. We can use it to shuffle the columns in a matrix. For this, MATLAB provides built-in functions that can be used together to shuffle the columns in a matrix. In this tutorial, I will explain how you can randomly shuffle columns in a matrix using MATLAB. How to Random Shuffle Columns of Matrix Using MATLAB? MATLAB provides some built-in functions that we can use to shuffle the columns in a matrix. We have to follow the steps given below to shuffle the columns in a matrix using MATLAB. Step ... Read More

MATLAB provides various built-in functions to plot a function of two variables with the help of different types of plots like mesh, surface, scatter plots, etc. In this tutorial, I am going to explain the process of plotting a function of two variables in MATLAB. Plot a Function of Two Variables in MATLAB The step-by-step process to plot a function of two variables in MATLAB is explained below. Step (1) − Define the range of x and y points. Step (2) − Create a grid of x and y points. For this, use the "meshgrid" function in MATLAB. ... Read More

In digital image processing, random pseudo coloring is a technique in which pixels of a grayscale image are assigned a random color. In this tutorial, I am going to explain the process of performing random pseudo coloring in a grayscale image using MATLAB. What is Random Pseudo Coloring in Grayscale Image? In digital image processing, "random pseudo coloring" is a way of converting a gray scale image to a random colored image. In this technique, the intensity value of each pixel of the gray scale image is assigned a random color value. Random pseudo coloring in grayscale image is widely ... Read More