Sobel Operator

The Sobel Operator is a technique used in image processing to detect edges or boundaries within an image. It works by emphasizing regions where pixel intensity changes sharply, highlighting features like object borders. It does this by applying a specific filter that calculates the gradient—how much and in which direction the pixel values change—both horizontally and vertically. This helps in identifying where the image varies most, making edges more visible. The Sobel Operator is commonly used in computer vision tasks such as object detection, image enhancement, and shape analysis.