Found 163 Articles for MATLAB

In digital image processing, the process of improving visual quality and clarity of a digital image by changing the color intensities is referred to as "contrast enhancement". Contrast enhancement is an important image processing task in various fields such as photography, remote imaging, medical imaging, etc. We can use various tools to perform contrast enhancement of an image. In this tutorial, I will explain the process of performing contrast enhancement using histogram equalization in MATLAB. What is Contrast Enhancement? In digital image processing, contrast enhancement is a basic image processing task performed to improve visual quality of an image to ... Read More

As we know, MATLAB is a powerful to perform image processing and signal processing. We can use it to alter different parameters of an image like brightness, contrast, saturation, and more. In this article, I will explain how we can perform contrast enhancement of a color image using MATLAB. What is a Contrast Enhancement? In digital image processing, the process of improving the colors and visual quality of an image is called contrast enhancement. This technique improves the quality of an image by changing the brightness and color concentration among different regions of the image. Contrast enhancement is used ... Read More

A histogram is nothing but a graphical representation that shows the distribution of a set of data points. The normalization of a histogram is a process of distributing its frequencies over a wide range. Before discussing the implementation of histogram normalization in MATLAB, let us first get an overview of histogram normalization. What is Histogram Normalization? A histogram is a graphical way of representing the distribution of frequencies of a dataset. Sometimes, we see a histogram in which the frequencies are distributed in a small range. It results in producing poor contrast in a digital image. There is a ... Read More

MATLAB is a powerful tool to perform various operations on matrices. In the case of matrices, iterating through elements of a matrix is one of the common operations used to perform various other matrix operations such as finding sum of all elements of a matrix, finding maximum and minimum values in a matrix, and more. In this article, I will explain how to iterate through elements in an N-dimensional matrix in MATLAB. Iterating Through Elements of a Matrix In a matrix, iterating through each element means visiting and processing every value present within the matrix. An N-dimensional matrix is one ... Read More

As we know, MATLAB is a powerful tool to perform various operations on matrices and arrays. Vector is a type of matrix having only one row or one column. We can determine the inverted version of a vector using MATLAB. For this, MATLAB provides different methods and functions. So, let’s discuss the process of inverting a vector using different methods in MATLAB. Inverse a Vector Using Indexing Method in MATLAB In MATLAB, we can utilize the indexing method to find inverse of a given vector. In this method, the elements of the vector are arranged in the reverse order using ... Read More

CSV or Comma Separated Values is a file format that can store numeric and text values. The most important characteristic of a CSV file is that it allows to exchange the data among a variety of sources. MATLAB is a powerful tool that provides a large number of built-in functions to perform various operations. It provides the following two functions that enable the users to import data with numeric and text values from a CSV file into the MATLAB workspace. readtable() importdata() In this tutorial, I will show you the process of importing data from a CSV file ... Read More

These three types of signals (unit step, sinusoidal, and exponential) are basic signals used in analyzing different types of systems. A unit step signal has a step of magnitude one after a specific time instant. A sinusoidal signal is a type of signal which has either a sine or cosine waveform. A exponential signal is a type of signal that rises or decays exponentially with time. We can use MATLAB to generate all these types of signals. In this tutorial, I am going to explain how you can generate unit step, sinusoidal, and exponential signal in ... Read More

A periodic sequence is one which repeats its pattern at regular intervals, whereas an aperiodic sequence is another type of sequence in which there is no regularity in the pattern. We can use MATLAB to generate periodic and aperiodic sequences. Before going to learn about generating periodic and aperiodic sequences using MATLAB, let us first get a brief overview of periodic and aperiodic sequences individually. What is a Periodic Sequence? A sequency of data points which has a regular pattern that repeats itself at a certain interval is called a periodic sequence. The interval over which the pattern of the ... Read More

FM stands for Frequency Modulation, a technique used in communication systems for long distance transmission of data and information. The frequency modulation involves the alteration in the frequency of the signal so that it can be transmitted over long distances without any distortion of the information. In this tutorial, I am going to explain how to generate narrowband and wideband FM signal using MATLAB. Before going to learn about generating narrowband and wideband FM signals, let us first get an overview of FM signal and its types. What is an FM Signal? An FM signal is a modulated signal which ... Read More

As we know, MATLAB is a powerful tool that can be used to perform various operations on matrices. One such operation is finding the percentage of similarity between two matrices. Finding percentage of similarity between two matrices is crucial in various application such as digital image processing, data analysis, machine learning, and more. This tutorial will help you understand the step-by-step process of finding the percentage of similarity between two matrices using MATLAB. What is Percentage of Similarity Between Two Matrices? The measure that shows how closely two matrices are related in some aspect is called "similarity between two matrices". ... Read More