Avoid using them to design logos and icons. To edit these images, you need access to raster-based programs like Adobe Photoshop or Shutterstock Editor. For design work, it’s best to use these programs for photography and imagery only. And, when these images are uploaded online, the end result is a raster image. When you take a picture with a phone or a camera, the image is recorded as pixel data.
Raster images are used in photography and digital applications. Tip: You can quickly cut down file size by reducing the resolution to 72 PPI for online images. An illustration with higher DPI (dots per inch) or PPI (pixels per inch) will be larger in size and data, which can be worrisome when there are limits to image storage or restrictions on uploaded file sizes. Image via NataliaKo.ĭue to the abundance of pixels in a raster image, the file sizes can be substantial. As a rule of thumb, it’s best to only downsize a raster image to avoid heavy pixelation. Obvious pixels make an image look unprofessional and unsightly. This is a key indicator of a raster-based image. Notice how the edges of the tropical pattern below become pixelated and jagged when magnified. When you zoom in on an image, the pixels become more apparent while the details of the image become blurry. The more pixels in an image the higher the quality, and vice versa. These pixels contain bits of color and, when combined, they build images. If you surf the web, chances are you’ve seen a raster image. Raster, or bitmap, images consist of tiny squares called pixels. Do you use raster or vector images? Raster images are made up of pixels, while vector images are formed by mathematical curves and paths.īeing comfortable with the ins and outs of both formats and how they translate when exported is an essential skill for every designer. With so many images to choose from online, it can be overwhelming to determine which file formats to begin with. Vector illustrations are great for logos, illustrations/artwork, animations, and text.Do you know the difference between a raster and vector file? This quick overview will help you differentiate for an improved design workflow. Typically vector art is created in illustration applications such as Adobe Illustrator or CorelDRAW.
#VECTOR VS RASTER ARTWORK EXAMPLE SOFTWARE#
All Microsoft Office clipart uses vector art and most charts and graphs produced by Office or by statistical analysis software are vector-based. So, what types of graphics would typically be vector? Well, almost all computer font files are based on vector images of the letters - that's why it's possible to scale them WAY up or WAY down and still have the letters be clear. If you want to make the circle bigger, you just increase the value of r - instead of having to keep track of tons more pixels, the computer just has to keep track of a different number. If you remember back to your high school geometry, the equation for a circle of center ( h, k) and radius r is (x - h) 2 + (y - k) 2 = r 2. One of the greatest things about vector images is that you can re-size them infinitely larger or smaller, and they will still print out just as clearly, with no increase (or decrease) in file size. Generally speaking, vector images are made up of paths or line art that can infinitely scalable because they work based on algorithms rather than pixels. Instead of trying to keep track of the millions of tiny pixels in a raster image, vector images keep track of points and the equations for the lines that connect them. This is a common problem but can be remedied by using raster image editing programs such as Photoshop to change resolution and properly scale images.Ĭommon Raster Image Types: JPG, TIFF, GIF, PNG, BMP This is because we are stretching the pixels over a larger area, thus making them look less sharp. As you may have guessed, the more pixels in the image and the higher the resolution is, the higher quality the image will be.įor example, if we scale a raster image to enlarge it, without changing resolution, it will lose quality and look blurry or pixilated. The number of pixels that make up an image as well as how many of those pixels are displayed per inch, both determine the quality of an image. Since raster images are pixel based, they are resolution dependent. Raster images are compiled using pixels, or tiny dots, containing unique color and tonal information that come together to create the image. These are the types of images that are produced when scanning or photographing an object. Raster (or bitmap) images are generally what you think about when thinking of images.
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