Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
ORB (Oriented FAST and Rotated BRIEF) is a fusion of FAST keypoint detector and BRIEF descriptors with many changes to enhance the performance. To implement ORB feature detector and descriptors, you could follow the steps given below Import the required libraries OpenCV and NumPy. Make sure you have already installed them. Read the input image using cv2.imread() method. Specify the full path of the image. Convert the input image to grayscale image using cv2.cvtColor() method. Initiate the ORB object with default values using orb=cv2.ORB_create(). Detect and compute the feature keypoints 'kp' and descriptor 'des' in the ... Read More
FAST (Features from Accelerated Segment Test) is a high speed corner detection algorithm. We use the FAST algorithm to detect features in the image. We first create a FAST object with cv2.FastFeatureDetector_create(). Then detect the feature points using fast.detect() where fast is the created FAST object. To draw featurepoints, we use cv2.drawKeypoints(). Steps To detect and draw feature points in the input image using the FAST feature detector, you could follow the steps given below Import the required libraries OpenCV and NumPy. Make sure you have already installed them. Read the input image using cv2.imread() method. Specify the full ... Read More
SIFT (Scale-Invariant Feature Transform ) is scale invariant feature descriptor. It detects keypoints in the image and computes its descriptors. We first create a SIFT object with cv2.SIFT_create(). Then detect the keypoints using sift.detect() where sift is the created SIFT object. To draw keypoints, we use cv2.drawKeypoints(). Steps To detect and draw keypoints in the input image using SIFT algorithm, you could follow the steps given below Import the required libraries OpenCVand NumPy. Make sure you have already installed them. Read the input image using cv2.imread() method. Specify the full path of the image. Convert the ... Read More
The cv2.transform() function performs the matrix transformation of each element of the input array. We could apply this transformation directly on the image as the images are NumPy ndarrays in OpenCV. To use this function, we should first define a transformation matrix m. The number of channels in the output will be the same as the number of rows in the transformation matrix m. Steps To find matrix transform of an input image, you could follow the steps given below- Import the required libraries OpenCV and NumPy. Make sure you have already installed them. Read the input ... Read More
We can blend the images using the Gaussian and Laplacian image pyramids. The Gaussian pyramid is a type of image pyramid. To create a Gaussian pyramid, OpenCV provides us two functions cv2.pyrDown() and cv2.pyrUp(). We can form the Laplacian Pyramids from the Gaussian pyramids. In Laplacian pyramid images look like edge images only. A level in the Laplacian Pyramid is formed by the difference between that level in the Gaussian Pyramid and the expanded version of its upper level in the Gaussian Pyramid. Steps To blend images using image pyramids, we could follow the steps given below − ... Read More
Air drop is a new way to send and receive money using your iPhone. With Air drop, you can quickly and easily transfer money to another person without having to go through a bank or other financial institution. How do air drops work? An air drop is a method of distributing cryptocurrency tokens or assets to a large number of users at once. The most common way to do this is to send the tokens to the wallets of everyone who holds a certain cryptocurrency, such as Bitcoin or Ethereum. This can be done manually, but it is more commonly ... Read More
Air gaps are used in security to isolate sensitive systems from external networks, making it much harder for attackers to gain access to them. In this article, we'll discuss the different ways you can use an air gap to improve your security posture. An air gap is a physical separation between two systems that are not intended to be physically connected. This separation ensures that there is no direct path for contaminants to flow between the two systems. Air gaps are commonly used in plumbing and HVAC systems to prevent backsiphonage or backflow of contaminated water into the potable water ... Read More
Introduction to aggressive investment strategy If you're looking to take your investment strategy up a notch, you may want to consider an aggressive investment approach. This type of investing involves more risk than traditional methods, but it can also lead to greater rewards. Before getting started, it's important to understand the basics of aggressive investing. This includes knowing what types of assets are suitable for this strategy and being comfortable with the risks involved. Once you have a firm understanding of these concepts, you can begin to implement an aggressive investment strategy. With careful planning and a bit of research, ... Read More
In macroeconomics, aggregate demand (AD) is the total demand for final goods and services in an economy at a given time. It is often called effective demand, because it includes not only consumption but also investment and government spending. Aggregate demand is an economic term that refers to the total amount of goods and services demanded in an economy at a given price level. It is often represented by a curve on a graph, with the quantity of goods and services demanded increasing as the price level decreases. What factors affect aggregate demand? There are a number of factors that ... Read More
Agency theory is a framework that attempts to explain the relationship between principals and agents. In business, agency theory is often used to study how managers act on behalf of shareholders. The goal of agency theory is to find ways to reduce the conflict of interest between these two groups so that the company can run more smoothly. . In general, agency theory posits that there is an inherent conflict of interest between these two parties, as the agent (who is acting on behalf of the principal) may have different goals and objectives than the principal. This conflict can lead ... Read More