9/18/2023 0 Comments Raster and vector image difference![]() A smooth circle is still a smooth circle at a million times its original size. Because vectors aren’t “images” in the normal sense but are instead the mathematical properties of lines, curves, and color fills, they can be scaled up to any size whatsoever. Vector images, however, don’t suffer from this limitation. Raster images include TIFFs, PNGs, BMPs, and JPEGs. This is why a photo that’s been blown up too much becomes “fuzzy” or “pixilated” – the computer inserts data based on surrounding dots and does a pretty poor job at it. ![]() In other words, the image’s resolution is too low for printing or on-screen purposes. If you enlarge a raster image, it will try to create data (i.e., more dots) to fill an area based on the pixels closest to it and, eventually, it just doesn’t look right. But once the graphic is enlarged, the answer becomes glaringly obvious.īecause raster images are made of dots, they can’t be enlarged or “scaled up” indefinitely. ![]() At a small size, it can be difficult to determine which of the two formats is being used. Vector images are mathematical descriptions of objects and their properties, including shape, size, position, and color. Raster, or bitmap images, are made up of dots (color, black and white, or grayscale). The answer is fairly simple but very important if you want your project to go smoothly. If your project requires scalable shapes and solid colors, vector is the best choice, but if your project requires complex color blends, raster is the preferred format.You may have heard the terms “raster” and “vector” graphics, but wondered what the difference is between the two. ![]() Raster images are best for digital photos and print materials. Their native files are needed for coin designs, laser engraving, t-shirts, patches, etc. They're also used in lower thirds for videos, web-based objects and rendering 2D or 3D computer animation. Raster-based software (e.g., Adobe Photoshop)Ī vector graphic's small file size and scalability make it uniquely suitable for use in digital printing from business cards to billboards.Vector-based software (e.g., Adobe Illustrator).Digital printing (e.g., business cards, billboards).However, a high resolution image printed at a small size will cause the pixels to "cram" together and will make the image look as unprofessional as not having enough pixels in a large image. Resolution limits the size the image can be scaled up without being able to see pixels. The lower the number of pixels, the lower the resolution. ![]() More pixels result in better quality at the same or larger sizes as the original, but this also increases the size of the file and the amount of space it takes to store the file. Each image can only contain a fixed number of pixels the amount of pixels determines the quality of the image. These images are created by digital cameras, by scanning images into a computer or with raster-based software. Pixels appear like little squares on graph paper when the image is zoomed in or enlarged. Raster images are made of pixels or tiny dots that use color and tone to produce the image. Because they consist of lines and anchor points, the size of the file is relatively small. These graphics are also device-independent, which means their quality doesn't depend on the number of dots available on a printer or the number of pixels on a screen. Their lines are sharp, without any loss in quality or detail, no matter what their size. Because these graphics are not based on pixels, they are known as resolution independent, which makes them infinitely scalable. These graphics consist of anchored dots and are connected by lines and curves, similar to the connect-the-dot activities you may have done as a kid. Vector graphics are also known as scalable vector graphics (SVG). ![]()
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