Vector Scaning and Raster Scanning in Computer Graphics

Vector scanning and raster scanning are two different techniques used to scan images.

Vector scanning involves the use of a laser beam to draw an image using geometric shapes such as lines, curves, and polygons. The laser beam moves over the image and turns on and off to create the desired shapes. The resulting image is made up of lines and curves that can be resized and reshaped without losing quality. Vector scanning is commonly used in engineering, architecture, and graphic design applications.

Raster scanning, also known as bitmap scanning, involves scanning an image by dividing it into a grid of pixels and scanning each pixel individually. The resolution of the resulting image depends on the number of pixels per inch, and higher resolutions result in a more detailed image. Raster scanning is commonly used in digital photography, printing, and desktop publishing.

The main advantage of vector scanning is that the resulting image can be scaled up or down without losing quality. This makes it ideal for applications that require high-quality images, such as engineering and architectural drawings. On the other hand, the main advantage of raster scanning is that it can capture a more detailed image with shading and color variations, making it ideal for applications such as photography and printing.

In summary, vector scanning and raster scanning are two different techniques used to scan images, and the choice between them depends on the specific application and the requirements of the image being scanned.