![]() There are ways of making these jagged edges less noticeable but this often results in making the image blurry as well. This is most noticeable in the edges of the image. When a bitmap image is scaled up you begin to see the individual pixels that make up the image. Vector images are also more scalable than bitmap images. Sample vector graphic from FCIT’s collection of Math illustrations on the ClipArt ETC website. A vector image just has to store the mathematical formulas that make up the image, which take up less space. That’s because a bitmap image has to store color information for each individual pixel that forms the image. Vector images tend to be smaller than bitmap images. Vector images have some important advantages over bitmap images. Vector images are edited by manipulating the lines and curves that make up the image using a program such as Adobe Illustrator. ![]() Unlike bitmaps, vector images are not based on pixel patterns, but instead use mathematical formulas to draw lines and curves that can be combined to create an image from geometric objects such as circles and polygons. Sample raster graphic from FCIT’s collection of robot illustrations on the TIM website. Bitmap graphics can be edited by erasing or changing the color of individual pixels using a program such as Adobe Photoshop. When you zoom in on a bitmap image you can see the individual pixels that make up that image. Each pixel is actually a very small square that is assigned a color, and then arranged in a pattern to form the image. To sum up, raster image have great color detail, but you can't enlarge them without becoming blurry, while vector images are great for logos since they allow you to enlarge without losing quality.Bitmap (or raster) images are stored as a series of tiny dots called pixels. Most vector images or files are created using the Adobe Illustrator program and the files are typically. All of this makes vector images the preferred image format for fonts and logos. ![]() Vector images are also very easy to edit, since all the different pieces that make up the image are layered on top of each other, rather than combined as one. This also allows you to scale your image to any size imaginable without losing a single detail, whereas a raster image must guess the colors of missing pixels while sizing up. For example, a vector image of a square would only contain four points, one for each corner, and the computer would then calculate the missing information to fill in the rest of the square, which keeps file size down to a minimum. ![]() On the other hand, rather than being made up of individual pixels, vector images use math to draw shapes using points, lines and curves. For instance, if you provide a raster file of what you would like on your flag but it has a green background and you want the same image but on a blue background for the flag, this cannot be done without first recreating the entire image as a vector file. The other drawback is that raster images that are already full size and ready to be printed are usually very large files that can be difficult to transfer from one user to the next. While you may have great looking raster artwork on your computer, scaling your image up to be used on a full size flag or banner is going to cause the final product to look blurry or grainy. The biggest issue that raster images face is the fact that they do not resize well. While raster images are great for full color images such as photographs, they do have a few drawbacks. In order to create the best flag or banner with your artwork, logo and graphics, it is important that your artwork is available in a ready to print format.Ī raster image is made up of hundreds or thousands or millions of square pixels. There are two different types of images used by graphic design programs: raster images and vector. Vector Image | Difference Between Raster & Vector ![]()
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