![]() ![]() One of the primary disadvantages of raster graphics is that it occupies much more space on a particular disk than vector graphics.Ī more specific definition of the term bitmap or raster is that it is a composition, that is, the structure of certain data displayed in the rectangular pixel network. It is understood that bitmap and vector graphics have their advantages and disadvantages, but it is also emphasized that each of them is individually applied in different situations. In addition to raster, in practice, vector graphics, that is, vector, is also applied and it implies that a certain photograph is defined using different geometric shapes, those that are classified into simpler, which are lines, dots, curves and polygons, provided that they are based in fact on certain mathematical formulas. The definition of the concept of resolution is related to a specific number of columns and rows within a particular matrix, which certainly has an impact on defining the quality of raster graphics, that is, bitmap. ![]() When it comes to the quality of the bitmap or raster, it is defined in two ways, through the depth of the color palette, as well as through resolution. Within each of these pixels, there is information about a particular color, which depends exclusively on the color system in which this type of graphics works. Namely, this term is defined as a specific way of image processing, which includes a colored dots (the so-called pixels) matrix, which is in this case two-dimensional. PostScript and TrueType® fonts always appear smooth - they are vector-based.If term bitmap is more represented in speech, the fact is that the term raster or raster graphics can be heard more often, which is primarily related to the field of professional photo processing. Wherever possible use the vector format for all your type, line art and illustrations and only use bitmaps for photos or images with complex or non-uniform shading. We recommend customers to print vector images prior to submission. This feature works great if your original raster image is has sharp edges and high contrast colors. Recently Adobe Illustrator introduced "e Live Trace"e functionality to help with raster-vector conversion process. Sometimes images can be converted by using automated processes, other times they need to be redrawn from scratch as a series of vector objects. Only then these vector objects can be grouped together and saved under a vector file extension. Each cluster of pixels has to be converted to a vector object. Raster images can be saved as a vector image - but first they have to undergo a conversion process. It is not enough to paste your bitmap image into Adobe Application and save it as an. Vector files can be created with Adobe application. Vector images are composed of mathematical statements that describe points and connecting paths.Įxample below illustrates the visual differences between bitmap and raster when images are scaled up. Raster images are composed of girds of pixels. In addition vector images can be easily manipulated in terms of color conversion and color substitution and again the quality is going to be 100% sharp. The edges of bitmaps often appear jagged when resized. This is not true for raster or bitmap graphics. The major difference is that vector image is independent of size - it can be scaled to any size without compromising image quality. Modern engraving technologies require that engraving layout and text are created as vector graphics.Ĭomputer graphics are divided into two types: raster (or bitmap) images and vector images.
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