7/30/2023 0 Comments Vector image vs raster imageWe often here the question “Which graphic format is better?” In truth, both vector and raster graphics can be used to produce excellent results when you understand their strengths and limitations. Use raster graphics when you want to add an effect to an image such as a blur, texture, or other image manipulation is requiredĬommon raster image formats include BMP (Windows Bitmap), PCX (Paintbrush), TIFF (Tag Interleave Format), JPEG (Joint Photographics Expert Group), GIF (Graphics Interchange Format), PNG (Portable Network Graphic), PSD (Adobe PhotoShop) and CPT (Corel PhotoPAINT).Raster graphics are ideal for web design.Use raster graphic in designs where photography is required.Raster conversion to vector is difficult.Raster files can be very large if there is a large amount of detail and pixels in an image which can make storing and sharing them more difficult.As a general rule it is a bad idea to enlarge raster images due to pixellation. Raster files are highly dependent on image resolution to reproduce accurately in print.Raster can handle other effects such as adding textures or blur effects very well.Raster files handle the subtleties of photographs very well as a general rule.Anything less will simply not look very good. It is for this reason that most printers set a minimum standard resolution of 300 dpi (dots per inch) when printing raster graphics. In the graphic below we’ve taken a raster version of our logo and then enlarged it.Īt its original size the image looks fine, but when enlarged the quality and sharpness of the image suffer. Printers often talk about raster image resolution, which is determined by how many dots there are per inch (dpi)īecause raster images are created by a series of dots, they do not scale up well. Each pixel is assigned a color value and packing many dots into a small area creates the illusion of a crisp image. A raster image is created by a series of pixels or dots. The most common raster image is a photograph, though with a graphics program like Adobe Photoshop artists can create raster images other than photographs.
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