Re: [Fwd: Re: non-rectangular images & <img> tag]

Spartanicus wrote:
> photo realistic content and they are not dial-up friendly. Instead of
> using image transparency why not specify the colour to use to determine
> the contour in the CSS:

With JPEG, that would result in, a possibly highly contrasting, 
background colour bleeding through on some pixels up to 16 away from the 
intended boundary.  That's because DCT artifacts are spread over 8 by 8 
pixel squares and because the chrominance components in default JPEG 
files are spatially sub-sampled by a factor of two.