Wednesday, May 13, 2009

Term 2. 2009. Session 1. Introduction, What is Digital?

What is Digital?

IMG_0427.jpg

An Analogue Camera will produce an image that is "smooth"
even when you enlarge it greatly. It uses Film.


IMG_0428.jpg


A Digital Camera will produce an image that is less "smooth" (that is lumpy or pixelated)
when you enlarge it greatly. A Digital device uses an Image Sensor.

IMG_0431.jpg

An Analogue image is smooth when you enlarge it greatly.


IMG_0430.jpg

A Digital image is less "smooth" (that is lumpy or pixelated) when you enlarge it greatly.
But the more pixels (picture elements) it is made up of the more detail can be seen.


Click the link to Wikipedia to find out more about resolution

http://en.wikipedia.org/wiki/Image_resolution

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