The vector images are defined mathematically, primarily based on their geometric characteristics. To be precise, a vector image is described by a set of geometric primitives that describe points, lines, curves, and polygons to which we will attribute colors and shades. They are radically totally different from raster images, which are described as a grid of properly colored pixels.
Advantages
1. In most cases, vector images would require lesser disk area than a bitmap. They are mostly shaped by flat colors or simple gradients because of which they don’t require plenty of disk space. Lesser the data to create the image, smaller is the file size. Thus, they are given more preference compared to different images.
2. Vector images don’t lose quality when they are scaled. In principle, a vector image might be scaled indefinitely. In the case of matrix images, some extent is reached the place it is clear that the image consists of pixels. Thus, the quality of vector images is superior to different types of images.
3. They can be simply saved and modified within the future. The best part is that, the process of modification is quite simple as well. All kinds of changes can be easily managed without any difficulty. Even if a file is modified, the resultant file doesn’t occupy a whole lot of space. This is one other reason why they’re used across industries.
4. The process of making them is quite simple as well. Actually, utilizing simple drawings we can get complex vector images without lots of difficulty. Simple and person-friendly programs comparable to Macromedia Freehand, Corel Draw and Adobe Illustrator can be utilized for creating easy drawings, which might be converted to vector images.
Disadvantages
1. They are typically not suitable for encoding pictures or movies taken within the “real world” (for instance – images of nature), though some formats assist a blended composition. Virtually all digital cameras store images in bitmap.
2. The data used to explain them must be processed by a robust machine, i.e. the computer must be powerful enough to perform the required calculations for forming the ultimate image. If the data quantity is high it might sluggish down the rendering of the image on screen, even when working with small files.
3. One other disadvantage is that, even small drawing errors are sometimes seen, when the images are enlarged to certain extent. Such an incident can have an effect on the quality of the images, especially when they are used in the field of animation.
Despite the truth that vector images have a couple of disadvantages, they have a wide range of applications and are applied in the fields of laptop graphics, architecture and engineering etc.
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