![]() ![]() When you resize a raster image, you stretch the pixels themselves, which can result in a “pixelated” or blurry image. True to their web-centric use, many are optimized to look good only at the size they were designed for so they use as little memory and bandwidth as possible. Pixels have a defined proportion based on their resolution (high or low). These images are constructed by a series of pixels, or individual blocks, to form an image. Raster images are typically used for photographs and web graphics (such as banner ads, pictures, and ). Most barcode file formats fit into one of two general categories-raster files and vector files-and each category has its own specific uses. By design, low resolution files are unable to incorporate this compensation factor. A barcode image file which does not account for BWA will not print accurately for most print technologies. This fine tune adjustment is only possible with a high-resolution image. A crucial component of precise digital barcode artwork is “bar width adjustment” (BWA), which compensates for gain/reduction occurring in the printing processes. Images at this resolution look very crisp on a display but blurry when printed.įor printable barcode images, common printing techniques such as offset, flexographic and silk screen require much higher resolution files – some with minimums of 2540 dpi. Websites normally display images at 72 dpi, and this is typically categorized as low resolution. The primary factor in determining the appropriate DPI is if you are using an image for print or web display. DPI stands for “dots per inch” and is a unit of measure for the resolution of a file, which is essential for calculating if the density of pixels in an image is proper for the application you are using. One of the most important acronyms in barcode imaging is DPI. The explanation below describes each of the popular barcode file formats and their appropriate applications. There are a variety of software programs and websites which provide digital barcodes in every available graphic format, and users are left clueless as to which format is right for their needs. Web graphics are generally not suitable for professional printing.You are here: Home › Barcode File Formats Barcode File Formats To recap, logo files should always be vector-based and SVG files can be used to display vector graphics online. Make sure the designer provides vector logo files when updating your logo, and ask your printer to double-check the resolution of images when professionally printed material. With this in mind, consult a graphic designer when in doubt. Raster-based images can be embedded into Adobe Illustrator, and vectors can be placed and even created in Photoshop. Any of the above file types can be exported to a pdf format, so these files can be either vector, raster, or a combination of the two.ĭisclaimer: Graphics software has come a long way, resulting in much line-blurring between programs. The small exception to these rules is the Portable Document Format (.pdf, PDF). ![]() ![]() Encapsulated PostScript File (.eps, EPS).Graphics Interchange Format (.gif, GIF).Joint Photographic Experts Group (.jpg, JPEG).The purpose of this post is to further explain the difference between these file types and to help determine which type is required for various purposes. Raster graphics, such as digital photographs, are created using a grid of tiny pixels. Vector graphics, such as logo files, use intricate paths of points and lines to create an image. When zoomed in closely, the individual pixels can be observed.ĭigital graphic files will generally fall into two categories-vector or raster. Raster images are made up of tiny squares called pixels and are often referred to as 'bitmap' images. This makes vector files the best format for graphic assets such as illustrations, icons and company logos, as the same file can be used for designs ranging from a mobile app to a large billboard without sacrificing quality or increasing file size. Vector files, made up of points and lines to create paths, can be scaled up and down without losing quality. What is the difference between vector and raster files for graphics? ![]()
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |