The vector images are defined mathematically, based mostly on their geometric characteristics. To be precise, a vector image is described by a set of geometric primitives that describe factors, lines, curves, and polygons to which we will attribute colors and shades. They are radically different from raster images, which are described as a grid of properly colored pixels.
Advantages
1. In most cases, vector images will require lesser disk area than a bitmap. They are mostly fashioned by flat colours 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 in comparison to different images.
2. Vector images don’t lose quality when they are scaled. In precept, a vector image can be scaled indefinitely. In the case of matrix images, a degree is reached the place it is evident that the image is composed of pixels. Thus, the quality of vector images is superior to other types of images.
3. They are often simply saved and modified in the future. The perfect part is that, the process of modification is quite simple as well. All kinds of modifications might be simply managed without any difficulty. Even when a file is modified, the resultant file doesn’t occupy a variety of space. This is another reason why they’re used throughout industries.
4. The process of making them is quite simple as well. Actually, using simple drawings we will get complicated vector images without lots of difficulty. Simple and user-pleasant programs such as Macromedia Freehand, Corel Draw and Adobe Illustrator can be utilized for creating simple drawings, which can be transformed to vector images.
Disadvantages
1. They are typically not suitable for encoding photos or videos taken within the “real world” (for example – photographs of nature), though some formats assist a combined composition. Virtually all digital cameras store images in bitmap.
2. The data used to describe them must be processed by a powerful machine, i.e. the pc have to be powerful enough to carry out the mandatory calculations for forming the final image. If the data quantity is high it could 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 visible, when the images are enlarged to certain extent. Such an incident can affect the quality of the images, especially when they’re used within the subject of animation.
Despite the truth that vector images have a couple of disadvantages, they have a wide range of applications and are carried out in the fields of laptop graphics, architecture and engineering etc.
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