The Power of Vector Graphics
Table of Contents
- Introduction
- Traditional Raster Images
- Problems with Resizing Raster Images
- Vector Graphics: A Solution to Resizing Problem
- How Vector Graphics Work
- Advantages of Vector Graphics
- Drawbacks of Vector Graphics
- Applications of Vector Graphics
- Vector Graphics vs Raster Images
- Conclusion
Vector Graphics: A Solution to Resizing Problem
Do You know the frustration of enlarging a photo only to end up with a blurry, distorted mess? Traditional raster images simply do not provide the required level of Detail when it comes to resizing. Higher pixel counts in digital cameras and more powerful computers may seem like the answer, but sometimes even they fail. Enter vector graphics. Unlike raster images that rely on pixel information and guesses about what additional pixels might look like upon enlargement, vector graphics use instructions about lines and shapes relative to one other. This results in images that can be resized infinitely without sacrificing quality.
Traditional Raster Images
In traditional raster images like JPEG or PNG, computer instruction simply describe how many pixels there are, what colors they should be, and where they should go to form an image. While a lower resolution may be sufficient for smaller print or digital formats, enlargement beyond the pixel count defined in the file results in the computer guessing at what additional pixels are required. The result is a poor-quality image that looks nothing like the original.
Problems with Resizing Raster Images
Stretching a JPEG or PNG file beyond its pixel count results in pixelation that looks horrible when the image is enlarged. The larger the enlargement, the worse the image quality gets. Even with the highest pixel count, there is a limit beyond which resolution falls apart.
Vector Graphics: A Solution to Resizing Problem
Vector files are different from raster images. They define images with lines and shapes, and their positions are relative to each other. So instead of instructions about the placement of individual pixels, the file tells the computer to draw a line here, a triangle there, and so on. The computer then renders these instructions into a smooth image that retains its quality, no matter what the size. This makes vector files an excellent solution to the issue of resizing images.
How Vector Graphics Work
Since vector images are defined by basic geometric shapes, they do not distort, blur, or pixelate when enlarged or shrunk. Because the instructions about Where To place these shapes remain the same, no matter what size they are displayed at, the image retains its overall appearance. However, if you zoom in close enough, you will see that the shapes making up the image are still visible. Vector graphics are created using specific software that allows the user to manipulate lines and shapes individually for maximum control.
Advantages of Vector Graphics
Vector graphics are perfect for creating images that need to be used at vastly different sizes, such as a company logo that may appear both on a business card and across a billboard. They provide a handy way to rescale images without worrying about any loss of quality. Additionally, they take up significantly less space on a drive than traditional raster images, providing efficient, high-quality storage.
Drawbacks of Vector Graphics
Because of the way they are defined, vector graphics cannot replicate photorealistic images. The lack of pixel information provides little granularity, and therefore many graphic designers and artists still prefer to use raster images for this purpose. Also, vector graphics require special software to Create and manipulate them, which not everyone may have access to.
Applications of Vector Graphics
Graphic designers and visual artists often use vector graphics for logos or signage. They also are perfect for technical illustrations, schematics, and even fonts. Some design industries, such as fashion and interior design, find use in vector graphics for its precise and organized approach to line drawing.
Vector Graphics vs Raster Images
Although vector graphics offer high-quality, infinitely scalable images, they have their place in supporting raster images. For photorealistic images, raster images are still the preferred choice. For downsized items like icons, vector graphics are useful.
Conclusion
Vector graphics offer a viable alternative to raster images when it comes to the need for scalability. They provide a perfect way to design logos, schematics, and fonts, among others. With more efficient file sizes and infinite scalability, vector graphics are an excellent choice for many graphic designers and artists. However, the lack of granularity means that they cannot replicate photorealistic images, which are still best created using raster images.