When you want to make an image available on the Web, there are two important
constraints. It needs to look its best and it must download fast. Those two
rarely, if ever, go together. Better image quality means a larger file size,
which translates to longer download times. Broadband connections help reduce
download times but not eveyone is sitting behind a fat pipe that is sucking
up the internet.
This month I'll discuss the JPEG format (pronounced "jay-peg"). When I sat
down to write this article, a voice in my head kept screaming "this is so
"97", and in a way I must admit it is. Then again, why is it that so many
folks today still choose wrong image formats? Or don't know how to use
selective JPEG compression in Fireworks? Um, selective what? Where? I
seriously hope you didn't ask the last question.
The Basics
JPEG is a standardized image compression mechanism des... (more)