I posted this on the Selena thread (Hong Kong Reports), but I'll add it here as well:
In addition to reducing the pixel dimensions of an image to reduce file size (per SkinnyForum's post), you also want to reduce the resolution of the image (pixel density), usually expressed as "dpi (dots per inch)".
Most files straight out of a camera will be between 190 and 300 dpi, the standard for printing on paper. However, for output to the Web, 72 dpi is entirely sufficient, as most people won't discern any difference between 72 dpi and 300 dpi on their screen monitors. But the difference in the number of actual pixels displayed (and hence file size) is about four fold.
So in your image editor, reduce the pixel dimension (to about 1000 pixels wide) AND the resolution to 72 dpi. This will give you the highest quality image while minimizing file size.
(Yeah, it feels strange for me to contribute to this thread, especially since I don't yet have the proper reading access level to review pictures!  )
[ Last edited by thedarknight at 21-8-2010 19:16 ] | |
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