by chrisjlocke » Tue May 22, 2007 5:53 pm
Basically, a JPG can have 16.7 million colours, but a GIF can only have 256. Therefore, colours have to be either the nearest possible within a pallette of 256, or a 'diffusion' - where you get extra pixels to lighten / darken an area. You can notice this in the sky of some of your beach shots. Rather than a 'nearest colour' which would be a solid blue, you get some lighter / darker pixels to give the impression of shading.
It would be great if you could move the pic from your sig into this thread only. Ideally, images in signatures should be less than a hundred KB or so in size - yours is 840KB. Some people are still on dialup, and to wait 4mins just to view your sig is unfortunately, not acceptable. If everyone had a large image in their sig, a thread could take ages to load. Nice pics though!