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Vector Graphics Overview


Introduction

When working with graphics we often hear a word i.e. Vector. Sometimes we  just take vectors or vector graphics as something else than taking it as important it is. It might happen as we don’t know the meaning of the words vector graphics or because of some other reason.. So what are vector graphics & where are they used? Come on now to explore the world of Vector graphics with me…

Introduction to Vector

Vector is a type of image. The usual photographs we see on the internet or in our computer are Raster or Bitmap images. These are also image types. These image types work on pixels & represent the images in the form of pixels. These images are resolution dependent & their quality is affected depending on the viewing size.

Vector images are those which are in form of logos on any website. This image type works on basic geometrical forms like lines & curves & represent the images in the form of lines & curves. This allows this type of images to be resolution independent which means their quality doesn’t affect depending on the viewing size or their image size. Vector graphics are  2d & based on CMYK (Cyan Magenta Yellow Black) color type basically. This is because vector graphics are widely used in printing & print media industries. A printer is set to work with only CMYK color type, thus vector images are created using CMYK color type only. It can also be created using RGB (Red Green Blue) or HSB (Hue Saturation Brightness) color types.

Why Vector?

Vector graphics are very flexible in use as they are resolution independent. You can create an image large in size & can rescale it at a size you want. These images are not affected when rescaled. While raster images, when extended to a large size, lack its quality. We can see pixels in the image. Below image will make it much clear.

Ball_final

As you can see in the image above, the main image of a tennis ball is magnified up to 1200% or at 12x in the small square below. You can see the pixels or small squares making the image. This is the biggest disadvantage of raster images. While working with images which would need rescaling many times, vector images are preferable.

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One Response

  1. Vector graphics really are better than raster. Attempting to size up a raster image leaves your beautiful graphics pixelated and trashed. Vector graphics can be hard to make though if you aren’t an illustrator. I found some free vector resources at http://www.creativearmory.com they just have them for download free.

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