Vector graphics, on the other hand, are composed of paths instead of dots, and can be scaled without reducing the quality of the image. Therefore, bitmap images will appear blurry if they are enlarged. If you zoom into a bitmap image, regardless of the file format, it will look blocky because each dot will take up more than one pixel. Therefore, most images you see on the web are compressed bitmaps. Compressed bitmaps are significantly smaller than uncompressed BMP files and can be downloaded more quickly. Each format uses a different type of compression, but they all represent an image as a grid of pixels. Other bitmap image formats, such as JPEG, GIF, and PNG, incorporate compression algorithms to reduce file size. This simple, universal image format can be recognized on nearly all platforms, but is not very efficient, especially for large images. It includes a header, which defines the size of the image and the number of colors the image may contain, and a list of pixels with their corresponding colors. The standard, uncompressed bitmap format is also known as the " BMP" format or the device independent bitmap (DIB) format. There are several different bitmap file formats. Together, these dots can be used to represent any type of rectangular picture. In a standard bitmap image, each dot can be assigned a different color. When viewed at 100%, each dot corresponds to an individual pixel on a display. It’s generally much harder to convert a raster image to a vector file than the other way around because it requires more computing power.A bitmap (or raster graphic) is a digital image composed of a matrix of dots. Editing vectors in raster-based software can prove difficult. You’ll need a vector-based design program like Adobe Illustrator to open and work on vector files. Vector files tend to be more suitable for graphics rather than photographs. Highly detailed digital photos may be better suited to the raster format, where their individual pixels can be edited. These are some of the disadvantages of using vector files: You can add shapes, text, different colors, and filters to create unique illustrations and designs - plus, you can easily go back and edit over and over again. Overall, quantitative analysis is intuitive with discrete or continuous rasters. Map algebra with raster data is usually quick and easy to perform. For raster positions, it’s simple to understand cell size. The bigger you stretch them, the more the quality can decline.īy avoiding blocks of pixels, vector files tend to be more lightweight than raster images such as photos, which can feature lots of camera data. What are the advantages of raster data A raster grid format is a data model for satellite data and other remote sensing data. In contrast, raster files only maintain their resolution when fitted to a specific size. There’s virtually no limit on how big you can make a vector image without losing its resolution. Some of the major benefits of vector files include: There are both pros and cons to using vector images over the raster format. All three offer their own specific advantages, disadvantages and ultimately, use cases.Īdvantages and disadvantages of vector files. Basically, vectors don’t lose quality when resized.Īt the same time, don’t confuse either raster or vector formats with RAW files, which are unaltered, uncompressed images made up of direct data taken from a camera’s sensors. They’re created with mathematical equations, lines, and curves - using points fixed on a grid - which means images can be made infinitely larger (or smaller) without losing resolution. This means raster files can become distorted if you resize them beyond the amount of space the pixels were meant to fill. Raster files are composed of a fixed number of square pixels. They’re formed in different ways and are better suited to some projects than others. When you work on any digital project, you’ll encounter two distinct types of image files - raster and vector. Let’s take a step back before actually defining the vector file.
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