Friday, April 1, 2011

Difference Between A Vector Image & A Bitmapped Image :)

As people begin working with computer graphics, one of the subjects of greatest confusion is the difference between bitmap graphics and vector graphics.  This is why I decided to Give my time in telling you the differences in the 2. Well first of all a bitmapped image is A bitmap graphic (you may occasionally hear "raster" graphic) is basically a large grid - think of a huge checkerboard, or a screen door, or any grid with a lot of little squares. If you put a different color in each little square, you can build an image square by square. When you stand far enough away from the grid, the individual grid squares blend together and you see a complete photographic image.This is how computer monitors and televisions work - they both are a series of little squares (pixels) in a big grid (the screen). When you specify your monitor's resolution (800x600, 1024x768 etc), you are telling the computer how many dots across by how many dots tall, and thus you define the grid that gets filled in with dots to show the image.
Now what is a Vector image?
a vector graphic is one in which the shape or path of a line is defined by a bit of math. Vector graphics are basically points connected by lines of various shapes, filled with solid or gradient colors. So it's point A, connected to point B by a line of some shape, with the shape of that line defined by a little mathematical description. More points and more lines can make more complex shapes. The line that defines the vector shape is referred to as the path.

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