PPI/DPI stands for Pixels or Dots Per Inch.A raster image is made up of many different pixels displayed on a rectangular grid. A pixel is, quite simply, a small block of color. Raster images are only intended to be viewed at a particular size, and lose quality when scaled up or down. As a result, zooming into or scaling a raster image can leave it looking blurry and undefined. So, when you zoom into a raster image, you’re not making the image bigger-you’re actually making each individual pixel within the image bigger. However, each pixel acts independently from all the pixels around it. Together, these pixels form the image that you see on screen. Within this grid lie thousands of tiny individual squares of color, known as pixels. Paper patterns used by many industries as prototypes are mostly in raster format as well.Ī raster image is essentially a rectangular grid. When you take a photo with a digital camera, scan an image using your scanner, or view most computer graphics, then you’re dealing with raster graphics. Raster graphics are one of the two most common methods used to display images, and can be contrasted with vector graphics. Whilst all raster image formats are different, there are a few basic features which all of them share. These are just a couple of examples of raster file types. Everyone who uses a laptop, tablet, cellphone or digital camera will come into contact with raster graphics on a daily basis-but how much do you really know about them? This article and infographic will give you a handy rundown of some of the most common raster file types, their pros and cons, and their specific uses. Selecting a region changes the language and/or content on some point, all of us have laughed at a hilarious animated GIF or shared a beautiful JPEG photo. Learn more about some of the common ones: Your software will usually determine your file type, whether it’s raster or vector. There are multiple types and extensions of both raster and vector files, each with its own features. You can open raster files in many different apps and web browsers, making them easy to view, edit, and share. Vector files aren’t as accessible - many vector file types require specialized software to open and edit the files. Though it can present some challenges, it’s possible to convert vector files to raster or raster files to vector when needed. Vector files are much more lightweight than raster files, containing only the mathematical formulas that determine the design. Their large size can impact device storage space and slow down page loading speeds on the web. However, you can compress raster files for storage and web optimization to make sharing faster and easier. Raster files are generally larger than vector files. They can contain millions of pixels and incredibly high levels of detail. ![]() ![]() For example, a brochure may use vector graphics for the company logo but raster files for photography. ![]() Some projects combine both raster and vector images. Vector files work better for digital illustrations, complex graphics, and logos. That’s because the resolution of vectors remains the same when resized, making them suitable for a wide variety of printed formats. Many digital cameras automatically shoot and save photos as raster files - and the images you see online are often rasters, too. Raster files are also commonly used for editing images, photos, and graphics. With vector image files, resolution is not an issue. You can resize, rescale, and reshape vectors infinitely without losing any image quality. Vector files are popular for images that need to appear in a wide variety of sizes, like a logo that needs to fit on both a business card and a billboard.ĭigital photographs are usually raster files. Raster files display a wider array of colors, permit greater color editing, and show finer light and shading than vectors - but they lose image quality when resized. An easy way to tell if an image is raster or vector is to increase its size. If the image becomes blurred or pixelated, it’s most likely a raster file. The resolution of a raster file is referred to in DPI (dots per inch) or PPI (pixels per inch). If you zoom in or expand the size of a raster image, you start to see the individual pixels. One of the main differences between raster and vector files is their resolution. They represent images in very different ways, so there’s a lot to consider when deciding which one to use. Some of the main differences between raster and vector include: Raster and vector files are the two most popular formats used for visual content. ![]() What is the difference between raster and vector files?
0 Comments
Leave a Reply. |