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It's critical to have a mechanism in place to identify and notify you about any duplicate values because duplicate data can frequently result in mistakes and inconsistencies in your spreadsheet. This tutorial will show you how to set up a warning message that will pop up if an entry is made twice in a certain column of your Excel worksheet. This course will provide you with the knowledge and abilities to successfully spot and manage duplicate values in your data, regardless of your level of Excel proficiency. So, let's get started and give you the capability to quickly find and ... Read More
MATLAB is an object-oriented programming (OOP) language that allows us to create objects and define their behavior. In MATLAB, there is a data type called 'Handle' which is used to point an object. Handles in MATLAB also allows us to pass a function as an input argument of some other function. In MATLAB programming, the handles are passed by reference instead of value. Therefore, when any change is made in the object's property, it will reflect across all the references. The use of handles in a MATLAB program makes it more memory efficient because it does not require copying ... Read More
MATLAB provides an easy and efficient way of processing images. In this tutorial, we will explore how to perform gray scale to pseudo color transformation in MATLAB. In MATLAB, the gray scale to pseudo color transformation is an image processing technique which is used to create a visually appealing image by mapping the intensity values of the gray scale image to a specific color. If we want to convert a gray scale image to a pseudo color image using MATLAB, then we can use a built-in function in MATLAB, which is ‘colormap’ and a color map matrix. Now, let us ... Read More
MATLAB is a high-level programming language that has capability to define a function that can accept a variable number of input arguments. In MATLAB, there is no need of defining any additional function or array to define a function with variable number of input arguments. How to Create a Function with Variable Number of Input Arguments in MATLAB? In MATLAB, when the keyword "varargin" is used in the function definition statement then it enables the function to take any number of input arguments. The "varargin" keyword is composed of "VARiable ARGument INput". It is important to note that the keyword ... Read More
In mathematics, the Fourier transform is a mathematical tool used for converting a function or signal from the time domain to the frequency domain. It is widely used in the field of signal processing, communication, image processing and analysis, etc. Before proceed to find the forward and inverse Fourier transformer of an image using MATLAB, let us get a brief overview of Fourier transform and its inverse. Forward Fourier Transform Fourier transform or Forward Fourier transform is a mathematical operation that is used to transform a signal from the time domain into the frequency domain. Therefore, the forward Fourier transform ... Read More
In MATLAB, we can create various types of GUI components like EditField, buttons, hyperlink, image, etc. In this tutorial, I will explain how can you create an image component in MATLAB programming. But before that let us first get an overview of image component in MATLAB. What is Image Component in MATLAB? In MATLAB, Image Component is a GUI (Graphical User Interface) component used to show an image in a MATLAB application. This component is widely used in applications where it is required to handle images like in image processing and analysis. To create an image component, MATLAB provides a ... Read More
In MATLAB, appending is nothing but the process of adding data to a text file which already exists in the memory or workspace. In MATLAB, there is a built-in function 'fprintf' which is used to append or add data to a file. The 'fprintf' function allows users to add or writer formatted data to a text file. By default, this function adds the data to the end of the text file. Let us now see the step-by-step process to append data to a file in MATLAB. How to Append Data to a File? The step-by-step process to append ... Read More
A type of noise signal which has a flat power spectral density (PSD) across all frequencies is referred to as white gaussian noise or white noise. In this tutorial, I will explain how to add white gaussian noise to signal using MATLAB. But before that let get a brief overview of white gaussian noise. What is White Gaussian Noise? A type of noise signal which has equal energy at all frequencies within a specified frequency range is termed as white gaussian noise. Therefore, white gaussian noise has a flat power spectral density (PSD) across all frequencies. In the case of ... Read More
MATLAB allows us to create graphical user interface (GUI) applications without proper knowledge of coding. It has a built-in component library containing a wide range of GUI components such as buttons, edit fields, numeric edit fields, hyperlinks, and many more. In this tutorial, I will explain how you can create an EditField component in MATLAB. What is an EditField Component in MATLAB? In MATLAB, the EditField component is a graphical user interface (GUI) component which is used to allow your users to input and edit text or number. The EditField component is one the fundamental GUI components used to build ... Read More
MATLAB is an efficient tool to process and manipulate digital images. In MATLAB, a digital image is specified as a two-dimensional matrix where the elements of the matrix represent the pixel intensity of the image. When the pixel intensity of a digital image is represented as a 2D matrix, then it is known as spatial domain. For any digital image specified in 2D matrix form or spatial domain, there is a term 'spatial resolution' which describes how sharply we can see the objects in the image. Also, there is another term 'brightness resolution' which describes pixel intensity of the image. ... Read More