Computer graphics refers to the representation and manipulation of image data by a computer. There are basic kinds of images represented by a computer.
Raster Graphic or Image composed of Pixels: Raster images are commonly called bitmap images. It uses a grid of individual pixels where each pixel can be a different color or shade.
Vector Graphic or Image composed of Path: Vector images are created using a sequence of command or mathematical statements that places lines and shapes in a 2-dimensional or 3-dimensional space.
A vector graphic file describes a series of points to be connected. These files are sometimes called geometric files. Images are created with tools such as Adobe Illustrator and Corel Draw.
Differences between Raster and Vector Graphics
| Raster graphics | Vector Graphics |
|---|---|
| 1) It is more difficult to convert to a vector file. It needs a specific tool if need be. | It can be easily converted to a raster file. |
| 2) Quality degrades when scaled | Quality doesn't degrade as it is highly scalable. |
| 3) File formats are .gif, .jpg, .png, .tff | File formats are .ai, .cdr, .reps, .svg, .wmf. |
| 4) Resolution dependent | Resolution independent. |
| 5) They have a relatively large file size | They are small in size. |
| 6) They are made up of pixels | They are made up of lines, curves, and shapes. |
I hope you have learned something today. I will continue this lecture next week.
Thank you.
Excellent post @vectorshore. Very interesting and educational.
I wish you a lot of success!
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