Optimising it now the final curtains been drawn.

Optimising is to make an image information size smaller so it can be easily viewed anywhere but in certain cases it will have to be optimised in order to be viewed this is where all the previous posts I have written comes to the big final lesson. Bit depth is the detail of a pixels colours the more bits in a pixel the more colours and information it holds and the greater the detail the overall image will hold.

Image resolution means the detail in an image the higher the resolution the bigger the file will be because of all the information stored within the image.

The dimensions of an image are the width and length of that digital image it is usually measured in pixels per inch in order to re size your images for use in different things.

And finally the image output this is a big thing with HD screens becoming more and more detailed more pixels are held within these screens at the moment the top screen is a 1080p This type of monitor can hold a lot of detail making images feel real and look true to life outputting an image to this will allow the resolution of an image to be very highly detailed compared to say an old monitor from ten years ago that wouldn't have the capability to hold as much detail because it cannot store that amount of pixels.
 

(http://winarco.com/wp-content/uploads/2010/08/nec-multisync-e231w-eco-friendly-full-hd-monitor-02.jpg)
(A 1080p monitor in its full display glory.)