Thursday 16 September 2010

D.P.I ,Vector images and Bitmaps

D.P.I - dots per inch the human eye can only see 300 dpi, but if its higher then300 the image becomes shaper. the higer the dpi, the larger the file and the longer it will take to upload save and open.


Vector graphics is the use of shapes such as points, lines, curves, and shapes or polygon's, which are all based on mathematical equations, to represent images in computer graphics. because its a math algorithm it takes up less space then a bitmap
Vector images do not get pixalated like bitmaps because they are circular and not made if lines of colours but equastions and maths .

Pixal images are remembered on a bitmap, which remembers the colours in order for each line. e.i red red ,red , lighter red, pink , white. because it records all of the colours in each line it requires alot of memory to bs saved

bitmap images will get pixalated if made too large or too small.

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